Table 1 Patient demographics (n = 30,244,426)
Demographic | No CDI (n = 29,984,207) | CDI (n = 260,219) | P valuea |
|---|---|---|---|
Age (y), median (IQR) | 69 (57–78) | 71 (61–78) | < 0.0001 |
Sex, % | < 0.0001 | ||
 Male | 50.2 | 51.3 | |
 Female | 49.8 | 48.7 | |
Race, % | < 0.0001 | ||
 White | 81.5 | 87.4 | |
 Black | 14.4 | 7.6 | |
 Other | 4.1 | 5.0 | |
Geographic Region, % | < 0.0001 | ||
 Midwest | 26.1 | 24.2 | |
 Northeast | 22.5 | 26.4 | |
 South | 37.0 | 32.0 | |
 West | 14.4 | 17.4 | |
Hospital Size, % | < 0.0001 | ||
 6–99 | 18.1 | 11.1 | |
 100–199 | 22.6 | 21.2 | |
 200–299 | 20.0 | 25.3 | |
 300–499 | 23.4 | 24.9 | |
 Over 500 | 15.8 | 17.5 | |
Principal payment source, % | < 0.0001 | ||
 Medicare | 54.0 | 60.6 | |
 Medicaid | 8.0 | 5.6 | |
 Private | 32.5 | 31.6 | |
 Self-pay | 2.6 | 0.7 | |
 Other | 3.0 | 1.4 | |
Admission type, % | < 0.0001 | ||
 Emergency | 43.4 | 55.0 | |
 Urgent | 22.1 | 28.0 | |
 Elective | 34.5 | 17.0 | |