Nitrogen

ID109
NameNitrogen
Synonyms
StructureThumb
DescriptionNitrogen can be measured in urine with the Kjeldahl method or by spectrophotometric methods (enzymic tests). Total urinary nitrogen is calculated based on urea urinary nitrogen quantified with these methods.
GroupMetals and minerals
Sub-groupMetals and minerals
Exposure sourceDiet
Use
CAS number17778-88-0
PubChem ID
ChEBI ID29351
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
6730ChildrenChildren and adolescentsGermanyDEDONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed)Urine, 24-hKjeldahl methodNitrogen120538.0140.0mmol/day530446.0 umol/dayCrudeKrupp 2012
6760AdolescentsChildren and adolescentsGermanyDEDONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed)Urine, 24-hKjeldahl methodNitrogen120628.0170.0mmol/day619182.4 umol/dayCrudeKrupp 2012
39300AllPregnant women participant in a dietary validation studyDenmarkDKDNBC (Danish National Birth Cohort)Urine, 24-hElemental analysisNitrogen8772.016.0g/day70989.1 mg/dayCrudeMikkelsen 2006
53950AllSecondary school students from Harris Academy in DundeeUnited KingdomGBUrine, 24-hSpectrophotometryNitrogen27481.6230.7mmol/day481600.0 umol/dayCrudeLietz 2002
64850MalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Urine, 24-hKjeldahl methodNitrogen5712.82.08.616.8g/day12800.0 mg/dayCrudeMcKeown 2001
64910FemalesMiddle-aged participants in a dietary validation studyUnited KingdomGBEPIC-Norfolk (European Prospective Investigation into Cancer and Nutrition)Urine, 24-hKjeldahl methodNitrogen779.91.96.716.0g/day9900.0 mg/dayCrudeMcKeown 2001
73150All [by gender]Participants in a dietary validation studyGermanyDEEPIC-Potsdam (European Prospective Investigation into Cancer and Nutrition)Urine, 24-hSpectrophotometryNitrogen13497.418.4g/day97400.0 mg/dayCrudeKroke 1999
82190AllAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Urine, 24-hMissingNitrogen6412.963.2g/day12960.0 mg/dayCrudeGonzalez 1997
82200MalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Urine, 24-hMissingNitrogen3014.723.3g/day14720.0 mg/dayCrudeGonzalez 1997
82210FemalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Urine, 24-hMissingNitrogen3411.392.3g/day11390.0 mg/dayCrudeGonzalez 1997
85020AllStudents and technicians attending the Agriculture Faculty and the Nursing School of San Carlo Hospital of MilanItalyITUrine, 24-hSpectrophotometryNitrogen4468.015.0g/day67045.2 mg/dayCrudePorrini 1995

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
53960AllSecondary school students from Harris Academy in DundeeUnited KingdomGBWeighed Dietary record (7-day)Nitrogen27712.1157.8mmol/day712100.0 umol/dayCrudeLietz 2002
53970AllSecondary school students from Harris Academy in DundeeUnited KingdomGBFood Frequency Questionnaire (FFQ)Nitrogen271066.0357.1mmol/day1051032.5 umol/dayCrudeLietz 2002
82220AllAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Diet History Questionnaire (DHQ)Nitrogen6412.234.1g/day12230.0 mg/dayCrudeGonzalez 1997
82230MalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Diet History Questionnaire (DHQ)Nitrogen3013.814.0g/day13810.0 mg/dayCrudeGonzalez 1997
82240FemalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)Diet History Questionnaire (DHQ)Nitrogen3410.833.6g/day10830.0 mg/dayCrudeGonzalez 1997
82250AllAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Nitrogen6411.553.4g/day11550.0 mg/dayCrudeGonzalez 1997
82260MalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Nitrogen3013.223.7g/day13220.0 mg/dayCrudeGonzalez 1997
82270FemalesAdults in MataróSpainESEPIC-Spain (European Prospective Investigation into Cancer and Nutrition)24-h Dietary recall (1-day)Nitrogen3410.12.4g/day10100.0 mg/dayCrudeGonzalez 1997

Correlation values

Reproducibility values

No data available