title: Conflicting definitions of confounding and their ramifications for veterinary epidemiologic research: collapsibility vs comparability.
authors.affiliation: Department of Epidemiology, School of Public Health, University of California, Los Angeles 90024-1772.
authors.forename: P H
authors.initials: PH
authors.lastname: Kass
authors.forename: S
authors.initials: S
authors.lastname: Greenland
mesh_terms: D000305:Adrenal Cortex Hormones / Q000009:adverse effects; D000818:Animals; D015986:Confounding Factors, Epidemiologic; D004283:Dog Diseases / Q000139:chemically induced / Q000453:epidemiology; D004285:Dogs; D005260:Female; D008297:Male; D012107:Research Design; D012307:Risk Factors; D012737:Sex Factors; D014552:Urinary Tract Infections / Q000139:chemically induced / Q000453:epidemiology / Q000662:veterinary; D014730:Veterinary Medicine / Q000379:methods*
chemical_list: D000305:Adrenal Cortex Hormones