Table 4. Univariable Analysis of the Association between Preoperative Coexisting Disease and In-hospital Cardiac Mortality
*P values are from chi-square tests, except † Fisher exact test.
‡ Poorly controlled hypertension (for details, see Methods).
§ If CHF was present at surgery, the odds ratio for death was 12.0 (P = 0.008), and if the patient had history of CHF more than 12 months before index surgery, the odds ratio for mortality was 1.4 (P = 0.70).