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Age adjustment in ecological studies: using a study on arsenic ingestion and bladder cancer as an example
BACKGROUND: Despite its limitations, ecological study design is widely applied in epidemiology. In most cases, adjustment for age is necessary, but different methods may lead to different conclusions. To compare three methods of age adjustment, a study on the associations between arsenic in drinking...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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BioMed Central
2011
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3224075/ https://www.ncbi.nlm.nih.gov/pubmed/22014275 http://dx.doi.org/10.1186/1471-2458-11-820 |