Tsuji 2010

ID65
TitleUrinary excretion of vitamin B1, B2, B6, niacin, pantothenic acid, folate, and vitamin C correlates with dietary intakes of free-living elderly, female Japanese
AuthorsTsuji, T.; Fukuwatari, T.; Sasaki, S.; Shibata, K.
Year2010
JournalNutr Res
Volume30
Issue3
Pages171-178
PubMed ID20417877
DOI10.1016/j.nutres.2010.02.001

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
2360AllElderly womenJapanJPHealthyYesFemale100.03773.23.270.084.0148.94.552.26.823.62.8

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
17780AllElderly womenJapanJPDay 4Urine, 24-hHPLCThiamin350.4590.494umol/day0.5 umol/dayCrude
17790AllElderly womenJapanJPDay 4Urine, 24-hHPLCRiboflavin350.8520.828umol/day0.9 umol/dayCrude
17800AllElderly womenJapanJPDay 4Urine, 24-hHPLC4-Pyridoxic acid354.452.26umol/day4.4 umol/dayCrude
17810AllElderly womenJapanJPDay 4Urine, 24-hMicrobioassay (Lactobacillus leichmanii)Vitamin B12350.0340.035nmol/day0.0 umol/dayCrude
17830AllElderly womenJapanJPDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
3589.730.8umol/day89.7 umol/dayCrude
17840AllElderly womenJapanJPDay 4Urine, 24-hMicrobioassay (Lactobacillus plantarum)Pantothenic acid3515.16.2umol/day15.1 umol/dayCrude
17850AllElderly womenJapanJPDay 4Urine, 24-hMicrobioassay (Lactobacillus casei)Folates3536.616.9nmol/day0.0 umol/dayCrude
17860AllElderly womenJapanJPDay 4Urine, 24-hHPLCAscorbic acid metabolites2,3-Diketogulonic acid
Ascorbic acid
L-Dehydroascorbic acid
35214.0271.0umol/day214.0 umol/dayCrude

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
17870AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)ThiaminNo352.510.91umol/day2.5 umol/dayCrude
17880AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)RiboflavinNo353.471.22umol/day3.5 umol/dayCrude
17890AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B6No357.062.78umol/day7.1 umol/dayCrude
17900AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B12No355.814.91nmol/day0.0 umol/dayCrude
17910AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)NiacinNo35113.049.0umol/day113.0 umol/dayCrude
17920AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Niacin (Niacin Equivalents)No35213.072.0umol/day213.0 umol/dayCrude
17930AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Pantothenic acidNo3526.18.9umol/day26.1 umol/dayCrude
17940AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)FolatesNo35792.0305.0nmol/day0.8 umol/dayCrude
17950AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35627.0310.0umol/day627.0 umol/dayCrude
17960AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)ThiaminNo352.50.73umol/day2.5 umol/dayCrude
17970AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)RiboflavinNo353.61.08umol/day3.6 umol/dayCrude
17980AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B6No357.042.35umol/day7.0 umol/dayCrude
17990AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B12No355.895.31nmol/day0.0 umol/dayCrude
18000AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)NiacinNo35127.057.0umol/day127.0 umol/dayCrude
18010AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Niacin (Niacin Equivalents)No35232.073.0umol/day232.0 umol/dayCrude
18020AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Pantothenic acidNo3525.58.9umol/day25.5 umol/dayCrude
18030AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)FolatesNo35845.0360.0nmol/day0.8 umol/dayCrude
18040AllElderly womenJapanJPDay 3Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35620.0407.0umol/day620.0 umol/dayCrude
18050AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)ThiaminNo352.620.85umol/day2.6 umol/dayCrude
18060AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)RiboflavinNo353.691.12umol/day3.7 umol/dayCrude
18070AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B6No357.572.71umol/day7.6 umol/dayCrude
18080AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B12No354.954.31nmol/day0.0 umol/dayCrude
18090AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)NiacinNo35129.065.0umol/day129.0 umol/dayCrude
18100AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Niacin (Niacin Equivalents)No35239.094.0umol/day239.0 umol/dayCrude
18110AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Pantothenic acidNo3525.66.4umol/day25.6 umol/dayCrude
18120AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)FolatesNo35854.0301.0nmol/day0.9 umol/dayCrude
18130AllElderly womenJapanJPDay 2Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35722.0423.0umol/day722.0 umol/dayCrude
18140AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)ThiaminNo352.370.74umol/day2.4 umol/dayCrude
18150AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)RiboflavinNo353.541.14umol/day3.5 umol/dayCrude
18160AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B6No357.452.41umol/day7.4 umol/dayCrude
18170AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B12No356.758.43nmol/day0.0 umol/dayCrude
18180AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)NiacinNo35121.047.0umol/day121.0 umol/dayCrude
18190AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Niacin (Niacin Equivalents)No35223.071.0umol/day223.0 umol/dayCrude
18200AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Pantothenic acidNo3524.57.1umol/day24.5 umol/dayCrude
18210AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)FolatesNo35818.0366.0nmol/day0.8 umol/dayCrude
18220AllElderly womenJapanJPDay 1Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35642.0356.0umol/day642.0 umol/dayCrude
18230AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)ThiaminNo352.50.59umol/day2.5 umol/dayCrude
18240AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)RiboflavinNo353.570.95umol/day3.6 umol/dayCrude
18250AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B6No357.581.95umol/day7.6 umol/dayCrude
18260AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin B12No355.853.16nmol/day0.0 umol/dayCrude
18270AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)NiacinNo35122.036.0umol/day122.0 umol/dayCrude
18280AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Niacin (Niacin Equivalents)No35227.066.0umol/day227.0 umol/dayCrude
18290AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Pantothenic acidNo3525.46.5umol/day25.4 umol/dayCrude
18300AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)FolatesNo35828.0266.0nmol/day0.8 umol/dayCrude
18310AllElderly womenJapanJPDay 4Standard Tables of Food Composition in JapanWeighed Dietary record (4-day)Vitamin CNo35653.0334.0umol/day653.0 umol/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
169617871778AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)ThiaminNo2.51umol/dayDay 4Urine, 24-hHPLCThiamin0.459umol/day35Pearson0.47< 0.01Yes
169717881779AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)RiboflavinNo3.47umol/dayDay 4Urine, 24-hHPLCRiboflavin0.852umol/day35Pearson0.49< 0.01Yes
169817891780AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Vitamin B6No7.06umol/dayDay 4Urine, 24-hHPLC4-Pyridoxic acid4.45umol/day35Pearson0.37< 0.05Yes
169917901781AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Vitamin B12No5.81nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus leichmanii)Vitamin B120.034nmol/day35Pearson0.15>= 0.05No
170017911783AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)NiacinNo113.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.35< 0.05Yes
170117921783AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Niacin (Niacin Equivalents)No213.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.37< 0.05Yes
170217931784AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Pantothenic acidNo26.1umol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus plantarum)Pantothenic acid15.1umol/day35Pearson0.59< 0.001Yes
170317941785AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)FolatesNo792.0nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus casei)Folates36.6nmol/day35Pearson0.55< 0.001Yes
170417951786AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Vitamin CNo627.0umol/dayDay 4Urine, 24-hHPLCAscorbic acid metabolites2,3-Diketogulonic acid
Ascorbic acid
L-Dehydroascorbic acid
214.0umol/day35Pearson0.46< 0.01Yes
170517961778AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)ThiaminNo2.5umol/dayDay 4Urine, 24-hHPLCThiamin0.459umol/day35Pearson0.54< 0.001Yes
170617971779AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)RiboflavinNo3.6umol/dayDay 4Urine, 24-hHPLCRiboflavin0.852umol/day35Pearson0.46< 0.01Yes
170717981780AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)Vitamin B6No7.04umol/dayDay 4Urine, 24-hHPLC4-Pyridoxic acid4.45umol/day35Pearson0.13>= 0.05No
170817991781AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)Vitamin B12No5.89nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus leichmanii)Vitamin B120.034nmol/day35Pearson-0.07>= 0.05No
170918001783AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)NiacinNo127.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.38< 0.05Yes
171018011783AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)Niacin (Niacin Equivalents)No232.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.45< 0.01Yes
171118021784AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)Pantothenic acidNo25.5umol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus plantarum)Pantothenic acid15.1umol/day35Pearson0.49< 0.01Yes
171218031785AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)FolatesNo845.0nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus casei)Folates36.6nmol/day35Pearson0.24>= 0.05No
171318041786AllElderly womenJapanJPDay 3Weighed Dietary record (4-day)Vitamin CNo620.0umol/dayDay 4Urine, 24-hHPLCAscorbic acid metabolites2,3-Diketogulonic acid
Ascorbic acid
L-Dehydroascorbic acid
214.0umol/day35Pearson0.43< 0.01Yes
172318051778AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)ThiaminNo2.62umol/dayDay 4Urine, 24-hHPLCThiamin0.459umol/day35Pearson0.28>= 0.05No
172418061779AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)RiboflavinNo3.69umol/dayDay 4Urine, 24-hHPLCRiboflavin0.852umol/day35Pearson0.52< 0.001Yes
172518071780AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)Vitamin B6No7.57umol/dayDay 4Urine, 24-hHPLC4-Pyridoxic acid4.45umol/day35Pearson0.34< 0.05Yes
172618081781AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)Vitamin B12No4.95nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus leichmanii)Vitamin B120.034nmol/day35Pearson0.12>= 0.05No
172718091783AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)NiacinNo129.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.39< 0.05Yes
172818101783AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)Niacin (Niacin Equivalents)No239.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.39< 0.05Yes
172918111784AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)Pantothenic acidNo25.6umol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus plantarum)Pantothenic acid15.1umol/day35Pearson0.46< 0.01Yes
173018121785AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)FolatesNo854.0nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus casei)Folates36.6nmol/day35Pearson0.48>= 0.05No
173118131786AllElderly womenJapanJPDay 2Weighed Dietary record (4-day)Vitamin CNo722.0umol/dayDay 4Urine, 24-hHPLCAscorbic acid metabolites2,3-Diketogulonic acid
Ascorbic acid
L-Dehydroascorbic acid
214.0umol/day35Pearson0.39>= 0.05No
173218141778AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)ThiaminNo2.37umol/dayDay 4Urine, 24-hHPLCThiamin0.459umol/day35Pearson0.42< 0.05Yes
173318151779AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)RiboflavinNo3.54umol/dayDay 4Urine, 24-hHPLCRiboflavin0.852umol/day35Pearson0.34< 0.05Yes
173418161780AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)Vitamin B6No7.45umol/dayDay 4Urine, 24-hHPLC4-Pyridoxic acid4.45umol/day35Pearson0.16>= 0.05No
173518171781AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)Vitamin B12No6.75nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus leichmanii)Vitamin B120.034nmol/day35Pearson-0.03>= 0.05No
173618181783AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)NiacinNo121.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.32>= 0.05No
173718191783AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)Niacin (Niacin Equivalents)No223.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.26>= 0.05No
173818201784AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)Pantothenic acidNo24.5umol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus plantarum)Pantothenic acid15.1umol/day35Pearson0.3>= 0.05No
173918211785AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)FolatesNo818.0nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus casei)Folates36.6nmol/day35Pearson0.28>= 0.05No
174018221786AllElderly womenJapanJPDay 1Weighed Dietary record (4-day)Vitamin CNo642.0umol/dayDay 4Urine, 24-hHPLCAscorbic acid metabolites2,3-Diketogulonic acid
Ascorbic acid
L-Dehydroascorbic acid
214.0umol/day35Pearson0.53< 0.001Yes
174118231778AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)ThiaminNo2.5umol/dayDay 4Urine, 24-hHPLCThiamin0.459umol/day35Pearson0.59< 0.001Yes
174218241779AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)RiboflavinNo3.57umol/dayDay 4Urine, 24-hHPLCRiboflavin0.852umol/day35Pearson0.55< 0.001Yes
174318251780AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Vitamin B6No7.58umol/dayDay 4Urine, 24-hHPLC4-Pyridoxic acid4.45umol/day35Pearson0.33>= 0.05No
174418261781AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Vitamin B12No5.85nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus leichmanii)Vitamin B120.034nmol/day35Pearson-0.03>= 0.05No
174518271783AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)NiacinNo122.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.52< 0.001Yes
174618281783AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Niacin (Niacin Equivalents)No227.0umol/dayDay 4Urine, 24-hHPLCNicotinamide metabolitesN-Methyl-2-pyridone-5-carboxamide
N-Methyl-4-pyridone-3-carboxamide
N-Methylnicotinamide
Nicotinamide
89.7umol/day35Pearson0.49< 0.01Yes
174718291784AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Pantothenic acidNo25.4umol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus plantarum)Pantothenic acid15.1umol/day35Pearson0.56< 0.001Yes
174818301785AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)FolatesNo828.0nmol/dayDay 4Urine, 24-hMicrobioassay (Lactobacillus casei)Folates36.6nmol/day35Pearson0.43< 0.01Yes
174918311786AllElderly womenJapanJPDay 4Weighed Dietary record (4-day)Vitamin CNo653.0umol/dayDay 4Urine, 24-hHPLCAscorbic acid metabolites2,3-Diketogulonic acid
Ascorbic acid
L-Dehydroascorbic acid
214.0umol/day35Pearson0.53< 0.001Yes

Reproducibility values

No data available