Table 1.
Demographics
| Clinic (n = 2867) | ED (n = 4913) | IHT (n = 1548) | p value | |
|---|---|---|---|---|
| Age (mean, SD) | 56.3 ± 17.3 | 56.4 ± 18.0 | 56.4 ± 17.0 | 0.8929 |
| Age group (%) | 0.6216 | |||
| 18–34 | 14.9 | 15.1 | 14.0 | |
| 35–44 | 9.2 | 10.0 | 9.8 | |
| 45–54 | 15.6 | 16.6 | 16.7 | |
| 55–64 | 23.4 | 22.5 | 24.2 | |
| 65 + | 36.9 | 35.8 | 35.3 | |
| Gender (%) | < 0.0001 | |||
| Female | 45.7 | 49.7 | 44.2 | |
| Male | 54.3 | 50.3 | 55.8 | |
| Race (%) | < 0.0001 | |||
| Black | 36.0 | 46.7 | 37.5 | |
| Other | 3.0 | 2.2 | 3.2 | |
| White | 61.0 | 51.2 | 59.2 | |
| Insurance status (%) | < 0.0001 | |||
| Medicaid | 14.4 | 15.7 | 15.6 | |
| Medicare | 53.0 | 53.4 | 50.7 | |
| Commercial | 28.0 | 20.2 | 25.6 | |
| Uninsured | 4.7 | 10.7 | 8.1 | |
| Admitting service (%) | < 0.0001 | |||
| Cardiology | 27.3 | 18.7 | 29.5 | |
| Gastrointestinal | 5.0 | 6.4 | 13.4 | |
| Internal medicine | 27.6 | 48.9 | 20.4 | |
| Hematology-oncology | 25.6 | 10.3 | 8.4 | |
| Pulmonary critical care | 14.6 | 15.7 | 28.4 | |
| Distance (mean, SD) | 62.4 ± 112 | 40.5 ± 117 | 87.4 ± 100 | < 0.0001 |
| Far to MUSC (Distance > 50 miles) | 44.2 | 20.2 | 75.6 | < 0.0001 |
| Poverty (%) | 28.1 | 33.7 | 27.1 | < 0.0001 |
| Quarter of the admit date | 0.0202 | |||
| Jan–Mar | 23.4 | 24.9 | 24.9 | |
| Apr–Jun | 27.4 | 24.3 | 26.4 | |
| Jul–Sep | 25.0 | 26.2 | 22.9 | |
| Oct–Dec | 24.2 | 24.7 | 25.8 |
***p values represent a statistically significant difference between the 3 groups, based on ANOVA for continuous variables and chi-square for categorical variables