Table 1.
Characteristics of included and excluded providers
| Provider characteristics | Included providers (n = 11,996) | Excluded providers a (n = 72455) | P-value |
|---|---|---|---|
| n (%) | n (%) | ||
| Gender | |||
| Female | 4834 (40.3%) | 34363 (47.4%) | <0.001 |
| Male | 7162 (59.7%) | 38092 (52.6%) | |
| Specialty | |||
| Infectious diseases | 127 (1.1%) | 237 (0.3%) | <0.001 |
| Medical | 8663 (72.2%) | 33970 (46.9%) | |
| Pulmonary | 186 (1.6%) | 537 (0.7%) | |
| Surgical | 230 (1.9%) | 7086 (9.8%) | |
| Urology | 538 (4.5%) | 173 (0.2%) | |
| Others | 2252 (18.8%) | 30452 (42.0%) | |
| Metropolitan area- Yes | 10400 (86.7%) | 67278 (92.9%) | <0.001 |
a
Providers were excluded if they had fewer than 11 patients or claims, given the Centers for Medicare and Medicaid Services’ suppression of data, and thus, relevant information was not available for analysis.