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Table 3 Direct effect of multimorbidity on the odds of hospitalization and related outcomes within 1 year among adults, aged 18 years and older with at least one priority chronic condition, by burden of multimorbidity, April 1, 2009 – March 31, 2010

From: The association between multimorbidity and hospitalization is modified by individual demographics and physician continuity of care: a retrospective cohort study

  Number of chronic conditions
  1 2 3 4 5+
Any hospitalization, OR (95 % CI) Ref 1.6 (1.5–1.6) 2.5 (2.5–2.5) 3.9 (3.8–3.9) 7.6 (7.5–7.6)
Three or more hospitalizations among those hospitalized, OR (95 % CI) Ref 1.6 (1.5–1.6) 2.1 (2.1–2.2) 2.7 (2.7–2.8) 4.3 (4.2–4.4)
Any days with non-medical discharge delay among those hospitalized, OR (95 % CI) Ref 2.0 (2.0–2.1) 3.2 (3.1–3.3) 4.2 (4.1–4.4) 6.0 (5.9–6.2)
30-day readmission among those discharged alive, OR (95 % CI) Ref 1.4 (1.4–1.4) 1.7 (1.7–1.8) 2.1 (2.0–2.2) 3.1 (3.1–3.2)