The effects of measurement error on previously reported mathematical relationships between indicator organism density and swimming-associated illness : a quantitative estimate of the resulting bias.
The results of the computer simulations show that the bias caused by this measurement error is non-differential causing the mathematical relationships between indicator organism density and swimming-associated illness reported in previous epidemiological studies to underestimate true risk by a minimum of approximately 14%, and that this underestimate could range as high as approximately 30 to 57%. This study also demonstrates that substantial reduction of this bias can be easily accomplished by incorporating a formal water quality sampling strategy.
Mots-clés Pascal : Amérique du Nord, Amérique, Eau usée domestique, Pollution eau, Baignade, Indicateur biologique, Toxicité, Homme, Epidémiologie, Biais méthodologique, Erreur estimation, Contrôle, Qualité eau, Analyse mathématique, Infection, Etats Unis
Mots-clés Pascal anglais : North America, America, Domestic waste water, Water pollution, Bathing, Biological indicator, Toxicity, Human, Epidemiology, Methodological bias, Estimation error, Check, Water quality, Mathematical analysis, Infection, United States
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 91-0319051
Code Inist : 002B30E. Création : 199406.