Temporal stability of urinary cadmium in samples collected several years apart in a population of older persons.
Biomarker
Cadmium
Older persons
Temporal variability
Urinary cadmium
Journal
International journal of hygiene and environmental health
ISSN: 1618-131X
Titre abrégé: Int J Hyg Environ Health
Pays: Germany
ID NLM: 100898843
Informations de publication
Date de publication:
03 2019
03 2019
Historique:
received:
09
07
2018
revised:
10
10
2018
accepted:
30
10
2018
pubmed:
8
11
2018
medline:
14
1
2020
entrez:
8
11
2018
Statut:
ppublish
Résumé
There is growing evidence that urine cadmium is a temporally stable biomarker indicative of long-term cadmium exposure; however questions remain with regard to generalizability to older persons, the impact of changes in smoking behavior, and the degree of temporal stability when repeat sample collection spans years instead of weeks or months. Using archived samples from cohorts of older men (Osteoporotic Fractures in Men (MrOS-US)) and women (Study of Osteoporotic Fractures (SOF)) (mean age = 80 at study visit 2), we analyzed two morning urine samples each from 39 men and 18 women with a diverse self-reported smoking history. For MrOS, samples were collected approximately 6 years apart, and 4 years apart for SOF. Intra-class correlations were computed to assess temporal stability, and adjusted for age and body mass index. The median creatinine-adjusted urinary cadmium levels (0.39 μg/g for men, 0.89 μg/g for women) were similar to levels expected for these age/sex groups in the US according to the National Health and Nutrition Examination Survey. The overall intra-class correlation was high (ICC = 0.85; 95% CI: 0.76-0.91) and similar between cohorts (MrOS: ICC = 0.74; 95% CI: 0.58-0.86; SOF: ICC = 0.81; 95% CI: 0.59-0.93), but slightly lower among those who stopped smoking between visits of sample collection (ICC = 0.64; 95% CI: 0.31-0.87) or among former smokers who quit prior to the first sample collection (ICC = 0.68; 95% CI: 0.25-0.93). We report good-to-excellent reproducibility of urine cadmium using morning urine samples collected 4-6 years apart from older men and women, but slightly lower correlations among those with a history of smoking. Single measures of urine cadmium are a reliable biomarker in older men and women.
Identifiants
pubmed: 30401599
pii: S1438-4639(18)30580-7
doi: 10.1016/j.ijheh.2018.10.005
pmc: PMC6408983
mid: NIHMS1511627
pii:
doi:
Substances chimiques
Biomarkers
0
Environmental Pollutants
0
Cadmium
00BH33GNGH
Types de publication
Journal Article
Multicenter Study
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
230-234Subventions
Organisme : NHLBI NIH HHS
ID : R01 HL070848
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL071194
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL070847
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR000128
Pays : United States
Organisme : NIAMS NIH HHS
ID : R01 AR035583
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR002369
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG026720
Pays : United States
Organisme : NIAMS NIH HHS
ID : R01 AR035584
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL070842
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG042124
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG042145
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG027576
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG005407
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG042168
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL070841
Pays : United States
Organisme : NIEHS NIH HHS
ID : R01 ES026614
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG042140
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL070838
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL070839
Pays : United States
Organisme : NIAMS NIH HHS
ID : R01 AR035582
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG027810
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG005394
Pays : United States
Organisme : NHLBI NIH HHS
ID : R01 HL070837
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG042143
Pays : United States
Organisme : NIA NIH HHS
ID : U01 AG042139
Pays : United States
Organisme : NIA NIH HHS
ID : R01 AG027574
Pays : United States
Organisme : NIAMS NIH HHS
ID : U01 AR066160
Pays : United States
Informations de copyright
Copyright © 2018 Elsevier GmbH. All rights reserved.
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