ArticleInternational archives of occupational and environmental health2005
Decreases in urine specific gravity and urinary creatinine in elderly women.
Article in International archives of occupational and environmental health, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
21 citing papers in PubMed.
- Association of arsenic exposure with PDGF-BB in vitro and in a South Texas population exposed through drinking water.Toxicology and applied pharmacology · 2025Article
- Abundant urinary amino acids activate glutamine synthetase-encodingJournal of bacteriology · 2024Article
- Association Between Buprenorphine Dose and the Urine "Norbuprenorphine" to "Creatinine" Ratio: Revised.Substance abuse : research and treatment · 2023Article
- Urinary Fluoride Levels among Canadians with and without Community Water Fluoridation.International journal of environmental research and public health · 2021Article
- Fluoride exposure and duration and quality of sleep in a Canadian population-based sample.Environmental health : a global access science source · 2021Article
- Urinary suPAR: a non-invasive biomarker of infection and tissue inflammation for use in studies of large free-ranging mammals.Royal Society open science · 2020Article
- Rapid Growth and Metabolism of Uropathogenic Escherichia coli in Relation to Urine Composition.Clinical microbiology reviews · 2019Review
- Association of water fluoride and urinary fluoride concentrations with attention deficit hyperactivity disorder in Canadian youth.Environment international · 2019Article
- Bisphenol A and pubertal height growth in school-aged children.Journal of exposure science & environmental epidemiology · 2019Article
- Associations between Urinary Excretion of Cadmium and Renal Biomarkers in Nonsmoking Females: A Cross-Sectional Study in Rural Areas of South China.International journal of environmental research and public health · 2015Article
- Mercury Exposure Assessment and Spatial Distribution in A Ghanaian Small-Scale Gold Mining Community.International journal of environmental research and public health · 2015Article
- Relation of child birth and breast-feeding burden with cadmium and tubular dysfunction marker levels in urine of adult women in non-polluted areas in Japan.International archives of occupational and environmental health · 2013Article
- Association of past diseases with levels of cadmium and tubular dysfunction markers in urine of adult women in non-polluted areas in Japan.International archives of occupational and environmental health · 2013Article
- Bi-linear dose--response relationship in general populations with low-level cadmium exposures in non-polluted areas in Japan.International archives of occupational and environmental health · 2012Article
- Sampling of urinary cadmium: differences between 24-h urine and overnight spot urine sampling, and impact of adjustment for dilution.International archives of occupational and environmental health · 2012Article
- A comparison of creatinine vs. specific gravity to correct for urinary dilution of cotinine.Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals · 2011Article
- Closer correlation of cadmium in urine than that of cadmium in blood with tubular dysfunction markers in urine among general women populations in Japan.International archives of occupational and environmental health · 2011Article
- Evaluation of physiological measures for correcting variation in urinary output: Implications for assessing environmental chemical exposure in children.Journal of exposure science & environmental epidemiology · 2009Article
- Changes in tubular dysfunction marker levels in parallel with the levels of copper, rather than cadmium, in urine of middle-aged women in non-polluted areas.International archives of occupational and environmental health · 2007Article
- Reference values for cobalt, copper, manganese, and nickel in urine among women of the general population in Japan.International archives of occupational and environmental health · 2006Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo examine the effects of aging on urinary levels of creatinine (CR) and urine specific gravity (SG) among women in a large-scale epidemiology survey.
methodsData on CR and SG in urine, together with smoking habits and menopausal status, were selected from previously established databases and combined with the results of supplemental sample collection. In total, CR and SG data were available for 11,090 never-smoking women (total group; 29-80 years of age); a subgroup of 1,851 women who lived in Kyoto was also selected from the total group. Data from the two groups were subjected to statistical analyses. In statistical evaluation, SG was converted to factor G, which was defined as (SG-1.000)x1,000.
resultsClassification by decade of years of age showed that both CR and SG decreased steadily as a function of advancement in age over 30 years, both in the total group and in the Kyoto subgroup, showing high reproducibility of the observation on a whole-country basis and on a local basis. When the levels at 80 years of age were compared with those at 30 years, there was an approximately 60% and 30% decrease in CR and factor G, respectively. Thus, the effects of aging were more marked on CR than on factor G (and therefore on SG). Menopause appeared to be an influential factor in the reduction of CR and SG, separately from aging itself.
conclusionsUrinary levels of creatinine and, to a lesser extent, urine specific gravity, steadily decreased as a function of ages of over 30 years in women.
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