Vitamin C

ID134
NameVitamin C
Synonyms[Vitamin C] / Vitamin C
StructureThumb
DescriptionIncludes all vitamers with vitamin C activity: they are principally ascorbic acid and dehydroascorbic acid.
GroupCarboxylic acids
Sub-groupCarboxylic acids
Exposure sourceDiet
UseVitamins
CAS number
PubChem ID
ChEBI ID
FooDB ID
HMDB ID

Biomarker measurements

Biomarker concentration values

IDParent IDDepthSubject groupPopulationCountryCountry codeCohortTime definitionBiospecimenAnalytical methodBiomarkerBiomarker detailMeasurement sizeDetected (nb)Detected (%)Detected only?Arithmethic meanArithmethic SDGeometric meanGeometric SDMinMin (detected)Percentile_05Percentile_10Percentile_25MedianPercentile_75Percentile_90Percentile_95MaxInterquartile rangeMean 95% CI lowerMean 95% CI upperGMean 95% CI lowerGMean 95% CI upperUnitConverted arithmetic meanConverted geometric meanConverted medianAdjustment typeAdjusted onRegressed onExpressed asPublication
29300MalesElderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Plasma, fasting and non-fastingFluorometryVitamin C25238.319.5umol/L38300.0 nmol/LCrudeVioque 2007
29420FemalesElderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Plasma, fasting and non-fastingFluorometryVitamin C29351.018.4umol/L51000.0 nmol/LCrudeVioque 2007
29560Normal weight (BMI: <25kg/m2)Elderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Plasma, fasting and non-fastingFluorometryVitamin C8542.521.9umol/L42500.0 nmol/LCrudeVioque 2007
29700Overweight (BMI: 25 to 30 kg/m2)Elderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Plasma, fasting and non-fastingFluorometryVitamin C26145.819.8umol/L45800.0 nmol/LCrudeVioque 2007
29840Obese (BMI: >30kg/m2)Elderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Plasma, fasting and non-fastingFluorometryVitamin C19945.419.2umol/L45400.0 nmol/LCrudeVioque 2007
35110MalesAdultsFranceFRSU.VI.MAX (SUpplementation en VItamines et Mineraux AntioXydants)Serum, fastingFluorometryVitamin C148734.749.461.7umol/L49400.0 nmol/LRegressionCholesterol, TriglyceridesDauchet 2008
35320FemalesAdultsFranceFRSU.VI.MAX (SUpplementation en VItamines et Mineraux AntioXydants)Serum, fastingFluorometryVitamin C203446.458.470.4umol/L58400.0 nmol/LRegressionCholesterol, TriglyceridesDauchet 2008
37350Quartile 1 (Adherence: <38.77%, MDI)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C829.984.16mg/L10.0 mg/LCrudeBach-Faig 2006
37360Quartile 1 (Adherence: <3.63%, MDS)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C8210.344.25mg/L10.3 mg/LCrudeBach-Faig 2006
37510Quartile 2 (Adherence: 38.77 to 48%, MDI)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C8211.83.71mg/L11.8 mg/LCrudeBach-Faig 2006
37520Quartile 2 (Adherence: 3.63 to 4.71%, MDS)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C8211.243.87mg/L11.2 mg/LCrudeBach-Faig 2006
37670Quartile 3 (Adherence: 48 to 56.24%, MDI)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C8211.713.52mg/L11.7 mg/LCrudeBach-Faig 2006
37680Quartile 3 (Adherence: 4.71 to 5.83%, MDS)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C8211.013.84mg/L11.0 mg/LCrudeBach-Faig 2006
37830Quartile 4 (Adherence: >56.24%, MDI)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C8210.863.75mg/L10.9 mg/LCrudeBach-Faig 2006
37840Quartile 4 (Adherence: >5.83%, MDS)Adults from CataloniaSpainESCatalan Nutritional SurveySerum, fastingColorimetryVitamin C8211.723.33mg/L11.7 mg/LCrudeBach-Faig 2006
40710All [by gender]Subjects from Golestan ProvinceIran, Islamic Republic ofIRGCS (Golestan Cohort Study)Serum, unspecifiedFluorometryVitamin C10319.217.8umol/L19210.0 nmol/LCrudeMalekshah 2006
40780All [by gender]Subjects from Golestan ProvinceIran, Islamic Republic ofIRGCS (Golestan Cohort Study)Serum, unspecifiedFluorometryVitamin C10325.6811.03umol/L25680.0 nmol/LCrudeMalekshah 2006
48200InterventionMothers in Maastricht with or without an increased fruit and vegetable diet interventionNetherlandsNLPlasma, fastingHPLCVitamin C8355.0713.9umol/L55070.0 nmol/LCrudeBogers 2004
48310InterventionMothers in Maastricht with or without an increased fruit and vegetable diet interventionNetherlandsNLPlasma, fastingHPLCVitamin C8361.5410.68umol/L61540.0 nmol/LCrudeBogers 2004
52160BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C2926.1211.3umol/L26120.0 nmol/LCrudeTangney 2004
52170WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C3034.7511.98umol/L34750.0 nmol/LCrudeTangney 2004
52180FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C3431.4612.49umol/L31460.0 nmol/LCrudeTangney 2004
52190MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C2528.9612.09umol/L28960.0 nmol/LCrudeTangney 2004
52560BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C2926.1811.07umol/L26180.0 nmol/LRegressionCholesterol, TriglyceridesTangney 2004
52570WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C3034.8112.49umol/L34810.0 nmol/LRegressionCholesterol, TriglyceridesTangney 2004
52580FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C3431.5112.89umol/L31510.0 nmol/LRegressionCholesterol, TriglyceridesTangney 2004
52590MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Serum, fastingColorimetryVitamin C2528.7912.04umol/L28790.0 nmol/LRegressionCholesterol, TriglyceridesTangney 2004
60120AllResidents of Washington County and surrounding areasUnited StatesUSCLUE IIPlasma, non-fastingColorimetryVitamin C1161.00.40.20.761.01.32.7mg/dL10.0 mg/L10.0 mg/LCrudeBlock 2001
64890MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C4858.017.520.089.5umol/L58000.0 nmol/LCrudeMcKeown 2001
64900Supplement nonusers - MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C3955.016.320.087.0umol/L55000.0 nmol/LCrudeMcKeown 2001
64940FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C7065.220.015.5104.0umol/L65200.0 nmol/LCrudeMcKeown 2001
64950Supplement nonusers - FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C5060.419.015.5104.0umol/L60400.0 nmol/LCrudeMcKeown 2001
81300Quartile 1 (Fat intake: 62.2 g/day)Adults in Val-de-Marne area participant in a cross-sectional nutrional surveyFranceFRSerum, fastingFluorometryVitamin C20953.0umol/L53000.0 nmol/LCrudeDrewnowski 1997
81330Quartile 2 (Fat intake: 76.3 g/day)Adults in Val-de-Marne area participant in a cross-sectional nutrional surveyFranceFRSerum, fastingFluorometryVitamin C20949.0umol/L49000.0 nmol/LCrudeDrewnowski 1997
81360Quartile 3 (Fat intake: 89.9 g/day)Adults in Val-de-Marne area participant in a cross-sectional nutrional surveyFranceFRSerum, fastingFluorometryVitamin C21045.0umol/L45000.0 nmol/LCrudeDrewnowski 1997
81390Quartile 4 (Fat intake: 105.1 g/day)Adults in Val-de-Marne area participant in a cross-sectional nutrional surveyFranceFRSerum, fastingFluorometryVitamin C20944.0umol/L44000.0 nmol/LCrudeDrewnowski 1997
82350AllAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C72429.4166.7ug/dL4.3 mg/LCrudeGonzalez 1997
82440MalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C32333.6124.7ug/dL3.3 mg/LCrudeGonzalez 1997
82530FemalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C40508.0156.2ug/dL5.1 mg/LCrudeGonzalez 1997
82620SmokersAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C16315.9186.6ug/dL3.2 mg/LCrudeGonzalez 1997
82710Non-smokersAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Plasma, fastingFluorometryVitamin C56462.4146.3ug/dL4.6 mg/LCrudeGonzalez 1997
85110AllStudents and technicians attending the Agriculture Faculty and the Nursing School of San Carlo Hospital of MilanItalyITWhole blood, fastingHPLCVitamin C389.92.6mg/L9.9 mg/LCrudePorrini 1995
89030FemalesChildren in GeorgiaUnited StatesUSSCAN (Studies of Children's Activity and Nutrition)Serum, non-fastingColorimetryVitamin C541.2mg/dL12.0 mg/LCrudeByers 1993
89090MalesChildren in GeorgiaUnited StatesUSSCAN (Studies of Children's Activity and Nutrition)Serum, non-fastingColorimetryVitamin C431.0mg/dL10.0 mg/LCrudeByers 1993
91520MalesParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSPlasma, unspecifiedColorimetryVitamin C5567.025.0umol/L67000.0 nmol/LCrudeJacques 1993
91620Males - Supplement nonusersParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSPlasma, unspecifiedColorimetryVitamin C3962.025.0umol/L62000.0 nmol/LCrudeJacques 1993
91720FemalesParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSPlasma, unspecifiedColorimetryVitamin C8071.028.0umol/L71000.0 nmol/LCrudeJacques 1993
91820Females - Supplement nonusersParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSPlasma, unspecifiedColorimetryVitamin C6065.027.0umol/L65000.0 nmol/LCrudeJacques 1993
92230All [by supplement]Men in MarylandUnited StatesUSPlasma, fastingColorimetryVitamin C681.03mg/dL10.3 mg/LCrudeSinha 1992
92240Supplement usersMen in MarylandUnited StatesUSPlasma, fastingColorimetryVitamin C220.98mg/dL9.8 mg/LCrudeSinha 1992
92250Supplement nonusersMen in MarylandUnited StatesUSPlasma, fastingColorimetryVitamin C461.12mg/dL11.2 mg/LCrudeSinha 1992
93940SmokersMen smokers and non-smokers in ScotlandUnited KingdomGBSerum, non-fastingMissingVitamin C7918.417.0umol/L18400.0 nmol/LCrudeBolton-Smith 1991
94020Non-smokersMen smokers and non-smokers in ScotlandUnited KingdomGBSerum, non-fastingMissingVitamin C11737.033.1umol/L37000.0 nmol/LCrudeBolton-Smith 1991

Intake values

IDParent IDDepthSubject groupPopulationCountryCountry codeCohortTime definitionIntake toolIntake food coverageIntake time coverageIntake assessmentCompoundCompound detailSupplement intakes included?Measurement sizeDetected (nb)Detected (%)Detected only?Arithmethic meanArithmethic SDGeometric meanGeometric SDMinMin (detected)Percentile_05Percentile_10Percentile_25MedianPercentile_75Percentile_90Percentile_95MaxInterquartile rangeMean 95% CI lowerMean 95% CI upperGMean 95% CI lowerGMean 95% CI upperUnitConverted arithmetic meanConverted geometric meanConverted medianAdjustment typeAdjusted onRegressed onExpressed asPublication
11270AllElementary-school childrenJapanJPDay 4Weighed Dietary record (4-day)Vitamin CNo108477.0225.0umol/day477.0 umol/dayCrudeTsuji 2011
11360AllElementary-school childrenJapanJPDay 3Weighed Dietary record (4-day)Vitamin CNo108448.0313.0umol/day448.0 umol/dayCrudeTsuji 2011
11450AllElementary-school childrenJapanJPDay 2Weighed Dietary record (4-day)Vitamin CNo108403.0289.0umol/day403.0 umol/dayCrudeTsuji 2011
11540AllElementary-school childrenJapanJPDay 1Weighed Dietary record (4-day)Vitamin CNo108445.0328.0umol/day445.0 umol/dayCrudeTsuji 2011
11630AllElementary-school childrenJapanJPWeighed Dietary record (4-day)Vitamin CNo108443.0170.0umol/day443.0 umol/dayCrudeTsuji 2011
11870MalesParticipants in a dietary validation studyJapanJPJPHC StudybaselineCalculated with FDB_raw databaseDietary record (7-day)Vitamin C102104.057.9mg/day104.0 mg/dayCrudeKobayashi 2011
12030MalesParticipants in a dietary validation studyJapanJPJPHC StudybaselineCalculated with FDB_cook databaseDietary record (7-day)Vitamin C10293.355.8mg/day93.3 mg/dayCrudeKobayashi 2011
12180FemalesParticipants in a dietary validation studyJapanJPJPHC StudybaselineCalculated with FDB_raw databaseDietary record (7-day)Vitamin C113118.270.8mg/day118.2 mg/dayCrudeKobayashi 2011
12330FemalesParticipants in a dietary validation studyJapanJPJPHC StudybaselineCalculated with FDB_cook databaseDietary record (7-day)Vitamin C113105.769.8mg/day105.7 mg/dayCrudeKobayashi 2011
13320AllUniversity studentsJapanJPDay 4Weighed Dietary record (4-day)Vitamin CNo148425.0362.0umol/day425.0 umol/dayCrudeTsuji 2010
13410AllUniversity studentsJapanJPDay 3Weighed Dietary record (4-day)Vitamin CNo148476.0354.0umol/day476.0 umol/dayCrudeTsuji 2010
13500AllUniversity studentsJapanJPDay 2Weighed Dietary record (4-day)Vitamin CNo148546.0435.0umol/day546.0 umol/dayCrudeTsuji 2010
13590AllUniversity studentsJapanJPDay 1Weighed Dietary record (4-day)Vitamin CNo148388.0276.0umol/day388.0 umol/dayCrudeTsuji 2010
13680AllUniversity studentsJapanJPWeighed Dietary record (4-day)Vitamin CNo148455.0244.0umol/day455.0 umol/dayCrudeTsuji 2010
17950AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35627.0310.0umol/day627.0 umol/dayCrudeTsuji 2010
18040AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35620.0407.0umol/day620.0 umol/dayCrudeTsuji 2010
18130AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35722.0423.0umol/day722.0 umol/dayCrudeTsuji 2010
18220AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35642.0356.0umol/day642.0 umol/dayCrudeTsuji 2010
18310AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35653.0334.0umol/day653.0 umol/dayCrudeTsuji 2010
21000WhitesWhites and African Americans in North CarolinaUnited StatesUSDISH (DIet, Supplements, and Health Study)Food Frequency Questionnaire (FFQ)Vitamin C8186.0145.0202.0mg/day145.0 mg/dayCrudeSatia 2009
21080WhitesWhites and African Americans in North CarolinaUnited StatesUSDISH (DIet, Supplements, and Health Study)24-h Dietary recall (1-day)Vitamin C8173.0105.0158.0mg/day105.0 mg/dayCrudeSatia 2009
21240African AmericansWhites and African Americans in North CarolinaUnited StatesUSDISH (DIet, Supplements, and Health Study)Food Frequency Questionnaire (FFQ)Vitamin C8358.0110.0217.0mg/day110.0 mg/dayCrudeSatia 2009
21320African AmericansWhites and African Americans in North CarolinaUnited StatesUSDISH (DIet, Supplements, and Health Study)24-h Dietary recall (1-day)Vitamin C8354.090.0135.0mg/day90.0 mg/dayCrudeSatia 2009
29240MalesElderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Food Frequency Questionnaire (FFQ)Vitamin C252125.464.1mg/day125.4 mg/dayCrudeVioque 2007
29360FemalesElderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Food Frequency Questionnaire (FFQ)Vitamin C293136.269.8mg/day136.2 mg/dayCrudeVioque 2007
29480Normal weight (BMI: <25kg/m2)Elderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Food Frequency Questionnaire (FFQ)Vitamin C85124.159.8mg/day124.1 mg/dayCrudeVioque 2007
29620Overweight (BMI: 25 to 30 kg/m2)Elderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Food Frequency Questionnaire (FFQ)Vitamin C261139.177.8mg/day139.1 mg/dayCrudeVioque 2007
29760Obese (BMI: >30kg/m2)Elderly subjects in the province of AlicanteSpainESEUREYE (European Eye)Food Frequency Questionnaire (FFQ)Vitamin C199123.953.5mg/day123.9 mg/dayCrudeVioque 2007
35640MalesParticipants in a dietary validation studyDenmarkDKInter99Food Frequency Questionnaire (FFQ)Vitamin C12522.066.0172.0mg/day66.0 mg/dayCrudeToft 2008
35760FemalesParticipants in a dietary validation studyDenmarkDKInter99Food Frequency Questionnaire (FFQ)Vitamin C13925.094.0177.0mg/day94.0 mg/dayCrudeToft 2008
40390MalesSubjects from Golestan ProvinceIran, Islamic Republic ofIRGCS (Golestan Cohort Study)24-h Dietary recall (2-day)Vitamin C4945.021.0mg/day45.0 mg/dayCrudeMalekshah 2006
40470MalesSubjects from Golestan ProvinceIran, Islamic Republic ofIRGCS (Golestan Cohort Study)Food Frequency Questionnaire (FFQ)Vitamin C4989.054.0mg/day89.0 mg/dayCrudeMalekshah 2006
40580FemalesSubjects from Golestan ProvinceIran, Islamic Republic ofIRGCS (Golestan Cohort Study)24-h Dietary recall (2-day)Vitamin C8237.024.0mg/day37.0 mg/dayCrudeMalekshah 2006
40670FemalesSubjects from Golestan ProvinceIran, Islamic Republic ofIRGCS (Golestan Cohort Study)Food Frequency Questionnaire (FFQ)Vitamin C8269.042.0mg/day69.0 mg/dayCrudeMalekshah 2006
50160BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes29180.7208.5mg/day180.7 mg/dayCrudeTangney 2004
50170WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes30413.9403.1mg/day413.9 mg/dayCrudeTangney 2004
50180FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes34225.4279.8mg/day225.4 mg/dayCrudeTangney 2004
50190MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes25410.9399.6mg/day410.9 mg/dayCrudeTangney 2004
50200BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo29115.563.8mg/day115.5 mg/dayCrudeTangney 2004
50210WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo30140.670.3mg/day140.6 mg/dayCrudeTangney 2004
50220FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo34130.170.4mg/day130.1 mg/dayCrudeTangney 2004
50230MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo25127.167.2mg/day127.1 mg/dayCrudeTangney 2004
50760BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes29176.7196.1mg/day176.7 mg/dayRegressionEnergyTangney 2004
50770WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes30351.5336.4mg/day351.5 mg/dayRegressionEnergyTangney 2004
50780FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes34231.9293.1mg/day231.9 mg/dayRegressionEnergyTangney 2004
50790MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CYes25311.4280.1mg/day311.4 mg/dayRegressionEnergyTangney 2004
50800BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo29111.345.4mg/day111.3 mg/dayRegressionEnergyTangney 2004
50810WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo30124.561.4mg/day124.5 mg/dayRegressionEnergyTangney 2004
50820FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo34131.560.0mg/day131.5 mg/dayRegressionEnergyTangney 2004
50830MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)Food Frequency Questionnaire (FFQ)Vitamin CNo25101.941.1mg/day101.9 mg/dayRegressionEnergyTangney 2004
51360BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes2981.547.2mg/day81.5 mg/dayCrudeTangney 2004
51370WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes30304.8260.2mg/day304.8 mg/dayCrudeTangney 2004
51380FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes34173.6221.9mg/day173.6 mg/dayCrudeTangney 2004
51390MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes25221.4222.8mg/day221.4 mg/dayCrudeTangney 2004
51400BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo2960.737.0mg/day60.7 mg/dayCrudeTangney 2004
51410WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo3012.463.6mg/day12.4 mg/dayCrudeTangney 2004
51420FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo3482.653.6mg/day82.6 mg/dayCrudeTangney 2004
51430MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo2590.264.5mg/day90.2 mg/dayCrudeTangney 2004
51800BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes2986.553.1mg/day86.5 mg/dayRegressionEnergyTangney 2004
51810WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes30290.2266.5mg/day290.2 mg/dayRegressionEnergyTangney 2004
51820FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes34183.2237.1mg/day183.2 mg/dayRegressionEnergyTangney 2004
51830MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CYes25199.5200.8mg/day199.5 mg/dayRegressionEnergyTangney 2004
51840BlacksElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo2963.239.2mg/day63.2 mg/dayRegressionEnergyTangney 2004
51850WhitesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo30102.854.1mg/day102.8 mg/dayRegressionEnergyTangney 2004
51860FemalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo3484.754.5mg/day84.7 mg/dayRegressionEnergyTangney 2004
51870MalesElderly black and white participants in a dietary validation studyUnited StatesUSCHAP (Chicago Health and Aging Project)24-h Dietary recall (1-day)Vitamin CNo2579.447.6mg/day79.4 mg/dayRegressionEnergyTangney 2004
57710AllControls in a case-control study on diet and heart diseaseCosta RicaCR24-h Dietary recall (1-day)Vitamin C120143.080.0mg/day143.0 mg/dayCrudeKabagambe 2001
57970AllControls in a case-control study on diet and heart diseaseCosta RicaCRFood Frequency Questionnaire (FFQ)Vitamin C120260.0144.0mg/day260.0 mg/dayCrudeKabagambe 2001
58230AllControls in a case-control study on diet and heart diseaseCosta RicaCRFood Frequency Questionnaire (FFQ)Vitamin C120213.0116.0mg/day213.0 mg/dayCrudeKabagambe 2001
58490AllControls in a case-control study on diet and heart diseaseCosta RicaCRFood Frequency Questionnaire (FFQ)Vitamin C120237.0114.0mg/day237.0 mg/dayCrudeKabagambe 2001
60200Non-Hispanic BlacksBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CYes97354.4486.6mg/day354.4 mg/dayCrudeKnutsen 2001
60240Non-Hispanic Blacks - MalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CYes36377.6504.0mg/day377.6 mg/dayCrudeKnutsen 2001
60280Non-Hispanic Blacks - FemalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CYes61340.8479.7mg/day340.8 mg/dayCrudeKnutsen 2001
60320Non-Hispanic BlacksBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CNo97136.864.6mg/day136.8 mg/dayCrudeKnutsen 2001
60360Non-Hispanic Blacks - MalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CNo36157.470.1mg/day157.4 mg/dayCrudeKnutsen 2001
60400Non-Hispanic Blacks - FemalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CNo61124.758.3mg/day124.7 mg/dayCrudeKnutsen 2001
60440Non-Hispanic WhitesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CYes96335.1337.81mg/day335.1 mg/dayCrudeKnutsen 2001
60480Non-Hispanic Whites - MalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CYes40290.2287.8mg/day290.2 mg/dayCrudeKnutsen 2001
60520Non-Hispanic Whites - FemalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CYes56367.2368.6mg/day367.2 mg/dayCrudeKnutsen 2001
60560Non-Hispanic WhitesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CNo96150.968.7mg/day150.9 mg/dayCrudeKnutsen 2001
60600Non-Hispanic Whites - MalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CNo40161.171.6mg/day161.1 mg/dayCrudeKnutsen 2001
60640Non-Hispanic Whites - FemalesBlack and white Seventh-day Adventists participant in a dietary validation studyUnited StatesUSAHS (Adventist Health Study)24-h Dietary recall (1-day)Vitamin CNo56143.766.3mg/day143.7 mg/dayCrudeKnutsen 2001
61110MalesLondon-based civil servantsUnited KingdomGBWhitehall IIDietary record (7-day)Vitamin C45781.046.0mg/day81.0 mg/dayCrudeBrunner 2001
61210FemalesLondon-based civil servantsUnited KingdomGBWhitehall IIDietary record (7-day)Vitamin C40394.049.0mg/day94.0 mg/dayCrudeBrunner 2001
61310Males - Low energy reporters excludedLondon-based civil servantsUnited KingdomGBWhitehall IIDietary record (7-day)Vitamin C31188.047.0mg/day88.0 mg/dayCrudeBrunner 2001
61410Females - Low energy reporters excludedLondon-based civil servantsUnited KingdomGBWhitehall IIDietary record (7-day)Vitamin C261102.050.0mg/day102.0 mg/dayCrudeBrunner 2001
61510MalesLondon-based civil servantsUnited KingdomGBWhitehall IIDietary record (7-day)Vitamin C45781.044.0mg/day81.0 mg/dayRegressionEnergyBrunner 2001
61610FemalesLondon-based civil servantsUnited KingdomGBWhitehall IIDietary record (7-day)Vitamin C40394.047.0mg/day94.0 mg/dayRegressionEnergyBrunner 2001
61710MalesLondon-based civil servantsUnited KingdomGBWhitehall IIFood Frequency Questionnaire (FFQ)Vitamin C457142.078.0mg/day142.0 mg/dayCrudeBrunner 2001
61810FemalesLondon-based civil servantsUnited KingdomGBWhitehall IIFood Frequency Questionnaire (FFQ)Vitamin C403185.089.0mg/day185.0 mg/dayCrudeBrunner 2001
61910Males - Low energy reporters excludedLondon-based civil servantsUnited KingdomGBWhitehall IIFood Frequency Questionnaire (FFQ)Vitamin C280160.078.0mg/day160.0 mg/dayCrudeBrunner 2001
62010Females - Low energy reporters excludedLondon-based civil servantsUnited KingdomGBWhitehall IIFood Frequency Questionnaire (FFQ)Vitamin C279200.085.0mg/day200.0 mg/dayCrudeBrunner 2001
62100MalesLondon-based civil servantsUnited KingdomGBWhitehall IIFood Frequency Questionnaire (FFQ)Vitamin C457142.071.0mg/day142.0 mg/dayRegressionEnergyBrunner 2001
62200FemalesLondon-based civil servantsUnited KingdomGBWhitehall IIFood Frequency Questionnaire (FFQ)Vitamin C403185.082.0mg/day185.0 mg/dayRegressionEnergyBrunner 2001
64200MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Dietary record (7-day)Vitamin CYes5881.043.0mg/day81.0 mg/dayCrudeMcKeown 2001
64270FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Dietary record (7-day)Vitamin CYes88100.055.0mg/day100.0 mg/dayCrudeMcKeown 2001
64340MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Dietary record (7-day)Vitamin CYes5874.036.0mg/day74.0 mg/dayCrudeMcKeown 2001
64410FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Dietary record (7-day)Vitamin CYes8890.054.0mg/day90.0 mg/dayCrudeMcKeown 2001
64480MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Dietary record (7-day)Vitamin CYes5877.034.0mg/day77.0 mg/dayCrudeMcKeown 2001
64550FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Dietary record (7-day)Vitamin CYes8895.048.0mg/day95.0 mg/dayCrudeMcKeown 2001
64620MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin CYes58118.053.0mg/day118.0 mg/dayCrudeMcKeown 2001
64690FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin CYes88136.057.0mg/day136.0 mg/dayCrudeMcKeown 2001
64760MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin CYes58111.041.0mg/day111.0 mg/dayCrudeMcKeown 2001
64830FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin CYes88132.065.0mg/day132.0 mg/dayCrudeMcKeown 2001
72760AllWomen in the southern part of Mexico CityMexicoMX24-h Dietary recall (4-day)Vitamin C11070.742.7mg/day70.7 mg/dayCrudeRomieu 1999
72860AllWomen in the southern part of Mexico CityMexicoMXFood Frequency Questionnaire (FFQ)Vitamin C110113.477.9mg/day113.4 mg/dayCrudeRomieu 1999
72960AllWomen in the southern part of Mexico CityMexicoMXFood Frequency Questionnaire (FFQ)Vitamin C11084.657.7mg/day84.6 mg/dayCrudeRomieu 1999
73750MalesParticipants in an investigation of antioxidant intake and adult onset asthma in ScotlandUnited KingdomGBFood Frequency Questionnaire (FFQ)Vitamin CYes118115.9126.415.794.51262.6mg/day115.9 mg/day94.5 mg/dayCrudeBodner 1998
73760Supplement nonusers - MalesParticipants in an investigation of antioxidant intake and adult onset asthma in ScotlandUnited KingdomGBFood Frequency Questionnaire (FFQ)Vitamin CNo100104.766.915.794.4420.6mg/day104.7 mg/day94.4 mg/dayCrudeBodner 1998
73930FemalesParticipants in an investigation of antioxidant intake and adult onset asthma in ScotlandUnited KingdomGBFood Frequency Questionnaire (FFQ)Vitamin CYes155128.294.618.697.6628.1mg/day128.2 mg/day97.6 mg/dayCrudeBodner 1998
73940Supplement nonusers - FemalesParticipants in an investigation of antioxidant intake and adult onset asthma in ScotlandUnited KingdomGBFood Frequency Questionnaire (FFQ)Vitamin CNo137112.970.918.695.6382.8mg/day112.9 mg/day95.6 mg/dayCrudeBodner 1998
82750AllAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Diet History Questionnaire (DHQ)Vitamin C72119.478.2ug/dL1.2 mg/LCrudeGonzalez 1997
82790AllAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Vitamin C72106.453.9ug/dL1.1 mg/LCrudeGonzalez 1997
82830MalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Diet History Questionnaire (DHQ)Vitamin C32116.486.0ug/dL1.2 mg/LCrudeGonzalez 1997
82870MalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Vitamin C32100.950.1ug/dL1.0 mg/LCrudeGonzalez 1997
82910FemalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Diet History Questionnaire (DHQ)Vitamin C40121.972.3ug/dL1.2 mg/LCrudeGonzalez 1997
82950FemalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Vitamin C40110.857.0ug/dL1.1 mg/LCrudeGonzalez 1997
83270MalesParticipants in a dietary validation studyNetherlandsNLEPIC-Dutch (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Vitamin C6392.0mg/day92.0 mg/dayCrudeOcke 1997
83340MalesParticipants in a dietary validation studyNetherlandsNLEPIC-Dutch (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C63113.0mg/day113.0 mg/dayCrudeOcke 1997
83410FemalesParticipants in a dietary validation studyNetherlandsNLEPIC-Dutch (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Vitamin C5881.0mg/day81.0 mg/dayCrudeOcke 1997
83480FemalesParticipants in a dietary validation studyNetherlandsNLEPIC-Dutch (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C58103.0mg/day103.0 mg/dayCrudeOcke 1997
83770MalesSchoolteachers participant in a dietary validation studyGreeceGREPIC-Greece (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Vitamin C42170.359.1mg/day170.3 mg/dayCrudeKatsouyanni 1997
83830MalesSchoolteachers participant in a dietary validation studyGreeceGREPIC-Greece (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C42306.7164.3mg/day306.7 mg/dayCrudeKatsouyanni 1997
83890MalesSchoolteachers participant in a dietary validation studyGreeceGREPIC-Greece (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C42304.8145.5mg/day304.8 mg/dayCrudeKatsouyanni 1997
83950FemalesSchoolteachers participant in a dietary validation studyGreeceGREPIC-Greece (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Vitamin C38145.744.7mg/day145.7 mg/dayCrudeKatsouyanni 1997
84010FemalesSchoolteachers participant in a dietary validation studyGreeceGREPIC-Greece (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C38370.7194.0mg/day370.7 mg/dayCrudeKatsouyanni 1997
84070FemalesSchoolteachers participant in a dietary validation studyGreeceGREPIC-Greece (European Prospective Investigation into Cancer and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C38327.5170.1mg/day327.5 mg/dayCrudeKatsouyanni 1997
85140AllStudents and technicians attending the Agriculture Faculty and the Nursing School of San Carlo Hospital of MilanItalyITFood Frequency Questionnaire (FFQ)Vitamin CNo38108.749.2mg/day108.7 mg/dayCrudePorrini 1995
85170AllStudents and technicians attending the Agriculture Faculty and the Nursing School of San Carlo Hospital of MilanItalyITWeighed Dietary record (7-day)Vitamin CNo3886.439.7mg/day86.4 mg/dayCrudePorrini 1995
89160FemalesChildren in GeorgiaUnited StatesUSSCAN (Studies of Children's Activity and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C54210.0mg/day210.0 mg/dayCrudeByers 1993
89220MalesChildren in GeorgiaUnited StatesUSSCAN (Studies of Children's Activity and Nutrition)Food Frequency Questionnaire (FFQ)Vitamin C43167.0mg/day167.0 mg/dayCrudeByers 1993
90720MalesParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes57352.0278.0mg/day352.0 mg/dayCrudeJacques 1993
90820MalesParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes57119.097.0mg/1000 kcal119.0 mg/1000 kcalDensityEnergyJacques 1993
90920FemalesParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes82322.0347.0mg/day322.0 mg/dayCrudeJacques 1993
91020FemalesParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes82139.0132.0mg/1000 kcal139.0 mg/1000 kcalDensityEnergyJacques 1993
91120Males - Supplement nonusersParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CNo41256.0154.0mg/day256.0 mg/dayCrudeJacques 1993
91220Males - Supplement nonusersParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CNo4186.050.0mg/1000 kcal86.0 mg/1000 kcalDensityEnergyJacques 1993
91320Females - Supplement nonusersParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CNo62221.0154.0mg/day221.0 mg/dayCrudeJacques 1993
91420Females - Supplement nonusersParticipants in a case-control study of nutritional status and age-related cataractsUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CNo6295.052.0mg/1000 kcal95.0 mg/1000 kcalDensityEnergyJacques 1993
92260All [by supplement]Men in MarylandUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes68233.0mg/day233.0 mg/dayCrudeSinha 1992
93830SmokersMen smokers and non-smokers in ScotlandUnited KingdomGBFood Frequency Questionnaire (FFQ)Vitamin CNo7949.419.0mg/day49.4 mg/dayCrudeBolton-Smith 1991
93890Non-smokersMen smokers and non-smokers in ScotlandUnited KingdomGBFood Frequency Questionnaire (FFQ)Vitamin CNo11761.124.8mg/day61.1 mg/dayCrudeBolton-Smith 1991

Correlation values

Reproducibility values

IDMst. IDSubject groupPopulationCountryCountry codeCohortTime definitionBiological specimenExperimental methodBiomarkerBiomarker detailArithmetic meanGeometric meanMedianUnitAdjusted onReproducibility sizeICCICC 95% CI lowerICC 95% CI upperCV% WSCV% BSVAR WSVAR BSPublication
61419085AllDutch participants of the EPIC-StudyNetherlandsNLMORGEN-EPIC projectbaseline; 3 yearsPlasma, non-fastingColorimetryVitamin Cnmol/L620.550.380.68Leenders 2013