Table 1.
A Comparison of the Baseline Characteristics of Patients of Residents and Attendings
| Patients of Residents | Patients of Attendings | P Value | |
|---|---|---|---|
| Number of patients | 6,307 | 8,247 | |
| Mean age, y±SD | 49.2±18.0 | 49.1±17.9 | ns |
| Women, % | 70 | 67 | ns |
| Insurance type, % | .0001 | ||
| Medicare | 23 | 14 | |
| Medicaid | 47 | 11 | |
| Managed care | 10 | 29 | |
| Self-pay | 13 | 38 | |
| Newly referred after hospitalization, % | 5 | 2 | .0001 |
| Comorbidity score, % | |||
| 0 | 56 | 74 | |
| 1 | 27 | 17 | |
| 2 | 10 | 5 | |
| 3 | 4 | 2 | |
| ≥4 | 3 | 2 | .002 |
| Specific comorbid illness, % | |||
| Hypertension | 33 | 20 | * |
| Diabetes | 9 | 5 | .001 |
| Peptic ulcer disease | 15 | 7 | .0001 |
| Ischemic heart disease | 8 | 5 | ns |
| Osteoarthritis | 17 | 11 | ns |
| Cancer | 6 | 3 | ns |
| Asthma | 13 | 8 | .001 |
| Depression | 8 | 5 | .001 |
| Chronic obstructive pulmonary disease | 6 | 4 | ns |
| Cellulitis/skin ulcer | 2 | 1 | .001 |
| Dementia | 2 | 1 | .0006 |
*
P<.05, but P>.0025.
P values are based on bivariate screening using PROC GENMOD with physician as a random factor.
ns, not significant.