Table 3.

Odds Ratios for In-Hospital Mortality Among Patients With Myocardial Infarction Admitted to Urban vs Rural Hospitals, Using Logistic Regression Models

Logistic Regression ModelOR (95% CI) (Urban vs Rural Hospitals)PValue of the Hospital VariablecStatistic
Note: Excluding patients discharged or transferred to another acute care general hospital for inpatient care.
OR = odds ratio; CI = confidence interval; APR-DRG = All Patient Refined Diagnosis-Related Group.
Unadjusted0.42 (0.35–0.50)<.0010.56
Adjusted for demographic characteristics (age, sex, race, admission type, payer)0.70 (0.58–0.84)<.0010.70
Adjusted for demographic characteristics and Charlson Comorbidity Index0.73 (0.61–0.88)<.0010.71
Adjusted for demographic characteristics and APR–DRG risk index0.68 (0.56–0.82)<.0010.86