Sinha 1992

ID208
TitleDeterminants of plasma ascorbic acid in a healthy male population
AuthorsSinha, R.; Block, G.; Taylor, P. R.
Year1992
JournalCancer Epidemiol Biomarkers Prev
Volume1
Issue4
Pages297-302
PubMed ID1303130
DOI

Subjects

IDParent IDDepthSubject groupPopulationCountryCountry codeEthnicityCohortHealth conditionSmoker proportionSupplement users excluded?GenderFemale proportionSizeAge meanAge SDAge minAge maxAge medianHeight meanHeight SDHeight minHeight maxHeight medianWeight meanWeight SDWeight minWeight maxWeight medianBMI meanBMI SDBMI minBMI maxBMI median
7450All [by supplement]Men in MarylandUnited StatesUSHealthy0.0NoMale0.06840.630.059.080.9
7467451Supplement usersMen in MarylandUnited StatesUSHealthy0.0NoMale0.022
7477451Supplement nonusersMen in MarylandUnited StatesUSHealthy0.0YesMale0.046

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 as
92230All [by supplement]Men in MarylandUnited StatesUSPlasma, fastingColorimetryVitamin C681.03mg/dL10.3 mg/LCrude
92240Supplement usersMen in MarylandUnited StatesUSPlasma, fastingColorimetryVitamin C220.98mg/dL9.8 mg/LCrude
92250Supplement nonusersMen in MarylandUnited StatesUSPlasma, fastingColorimetryVitamin C461.12mg/dL11.2 mg/LCrude

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 as
92260All [by supplement]Men in MarylandUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes68233.0mg/day233.0 mg/dayCrude

Correlation values

IDIntake IDExcretion IDSubject groupPopulationCountryCountry codeCohortIntake Time definitionIntake assessmentIntakeIntake detailSupplement intakes included?Intake Arithmetic meanIntake Geometric meanIntake MedianIntake UnitIntake Adjusted onBiomarker Time definitionBiological specimenBiomarker Experimental methodBiomarkerBiomarker detailBiomarker Arithmetic meanBiomarker Geometric meanBiomarker MedianBiomarker UnitBiomarker Adjusted onCorrelation sizeCorrelation typeCorrelation valueCorrelation 95% CI lowerCorrelation 95% CI upperCorrelation p-valueSignificant?Measurement adjustmentDeattenuated?Covariates
817492269223All [by supplement]Men in MarylandUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes233.0mg/dayPlasma, fastingColorimetryVitamin C1.03mg/dL68Pearson0.43= 0.0003Yes
817792269229All [by supplement]Men in MarylandUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYes233.0mg/dayPlasma, fastingColorimetryL-Dehydroascorbic acidmg/dL68Pearson0.22= 0.077No
817692279224Supplement usersMen in MarylandUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CYesmg/dayPlasma, fastingColorimetryVitamin C0.98mg/dL22Pearson0.2= 0.376No
817592289225Supplement nonusersMen in MarylandUnited StatesUSFood Frequency Questionnaire (FFQ)Vitamin CNomg/dayPlasma, fastingColorimetryVitamin C1.12mg/dL46Pearson0.48= 0.0006Yes

Reproducibility values

No data available