uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Urinary arsenic concentration adjustment factors and malnutrition
Show others and affiliations
2008 (English)In: Environmental Research, ISSN 0013-9351, Vol. 106, no 2, 212-218 p.Article in journal (Refereed) Published
Abstract [en]

This study aims at evaluating the suitability of adjusting urinary concentrations of arsenic, or any other urinary biomarker, for variations in urine dilution by creatinine and specific gravity in a malnourished population. We measured the concentrations of metabolites of inorganic arsenic, creatinine and specific gravity in spot urine samples collected from 1466 individuals, 5-88 years of age, in Matlab, rural Bangladesh, where arsenic-contaminated drinking water and malnutrition are prevalent (about 30% of the adults had body mass index (BMI) below 18.5 kg/m(2)). The urinary concentrations of creatinine were low; on average 0.55 g/L in the adolescents and adults and about 0.35 g/L in the 5-12 years old children. Therefore, adjustment by creatinine gave much higher numerical values for the urinary arsenic concentrations than did the corresponding data expressed as mu g/L, adjusted by specific gravity. As evaluated by multiple regression analyses, urinary creatinine, adjusted by specific gravity, was more affected by body size, age, gender and season than was specific gravity. Furthermore, urinary creatinine was found to be significantly associated with urinary arsenic, which further disqualifies the creatinine adjustment.

Place, publisher, year, edition, pages
2008. Vol. 106, no 2, 212-218 p.
Keyword [en]
creatinine, specific gravity, urine analysis, malnutrition, arsenic, dilution adjustment
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-16202DOI: 10.1016/j.envres.2007.08.005ISI: 000253618800009PubMedID: 17900556OAI: oai:DiVA.org:uu-16202DiVA: diva2:43973
Available from: 2008-05-13 Created: 2008-05-13Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Persson, Lars Åke
By organisation
Department of Women's and Children's Health
In the same journal
Environmental Research
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 165 hits
ReferencesLink to record
Permanent link

Direct link