title: Effect of dichotomising age in multivariate model analysis.
authors.forename: A M
authors.initials: AM
authors.lastname: Yohannes
authors.forename: M J
authors.initials: MJ
authors.lastname: Connolly
mesh_terms: D000208:Acute Disease; D000367:Age Factors; D006801:Humans; D015999:Multivariate Analysis; D029424:Pulmonary Disease, Chronic Obstructive / Q000401:mortality*