Fig. 2.
Forest plot displaying the adjusted odds ratios and 95% CIs for predictors of referral for preoperative consultation. The adjusted model included all of the variables displayed. The referent category for surgical specialty was general surgery. Revised cardiac risk index (RCRI): patients with 0, 1, 2, or 3 or more factors were assigned to classes I, II, III, or IV, respectively; referent category was class I. The Deyo comorbidity index was used as a categorical variable, scores of 0, 1, 2, and ≥3 are represented by categories 0, 1, 2, and 3. The referent category was 0. The estimate for age is for 10-yr difference. ACE-I = angiotensin converting enzyme inhibitors; Ca channel blockers = calcium channel blockers; Deyo = Deyo comorbidity index; Nonasp antiplt agents = nonaspirin antiplatelet agents; Other anti-htn = other antihypertensive medications.