title: Community controls were preferred to hospital controls in a case-control study where the cases are derived from the hospital.
authors.affiliation: Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada.
authors.forename: Binod
authors.initials: B
authors.lastname: Neupane
authors.forename: Stephen D
authors.initials: SD
authors.lastname: Walter
authors.forename: Paul
authors.initials: P
authors.lastname: Krueger
authors.forename: Mark
authors.initials: M
authors.lastname: Loeb
mesh_terms: D000368:Aged; D002170:Canada / Q000453:epidemiology; D016022:Case-Control Studies; D017714:Community-Acquired Infections / Q000453:epidemiology; D015986:Confounding Factors, Epidemiologic; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D016015:Logistic Models; D008297:Male; D011014:Pneumonia / Q000453:epidemiology*; D012307:Risk Factors; D011795:Surveys and Questionnaires