epidemiologic study

epidemiologic study

A study that compares 2 groups of people who are alike except for one factor, such as exposure to a chemical or the presence of a health effect; the investigators try to determine if any factor is associated with the health effect
References in periodicals archive ?
Starko conducted the first epidemiologic study linking a highly-fatal childhood disease, Reye's Syndrome, to the use of aspirin.
Although one epidemiologic study showed no association between exposure to copper and ALS (Vinceti et al.
Chromosomal DNA fingerprint patterns produced with IS6110 as strain-specific markers for epidemiologic study of tuberculosis.
But Kerkvliet says EPA shouldn't hold its breath waiting for the definitive epidemiologic study.
Two types of projects were called for: one using animal models to characterize pathways related to breast and endocrine system development over the life course, and a second to conduct an epidemiologic study of the determinants of puberty in girls.
Evaluation of method for secondary DNA typing of Mycobacterium tuberculosis with pTBN12 in epidemiologic study of tuberculosis.
But Edward Hendrick of the University of Colorado Health Sciences Center in Denver points out that if A-T carriers are so prevalent, they must have been included in every epidemiologic study showing mammography's benefits.
Now an epidemiologic study by a team of Canadian researchers has revealed that even low-level exposure to some of these chemicals can alter TH status in expectant mothers, with unknown effects [EHP 113:1039-1045].
A fourth epidemiologic study linking a specific bacterial infection to cancer of the stomach "puts forth beyond a reasonable doubt" the emerging theory that the bug is somehow associated with the often-fatal cancer, says a British researcher.
They illustrate a spectrum of public involvement, population- and individual-level epidemiologic study designs, and the crucial importance of developing and applying new exposure assessment methods.
People who regularly take aspirin cut in half their risk of dying from colon cancer, according to the largest, most definitive epidemiologic study to investigate this link.
Their purpose was to shed light on which water use activities should be considered in the context of an epidemiologic study and to establish some practical approaches for future investigations.