Table 1. Patient demographics.
*p <0.05
CI: confidence interval; OB/GYN: obstetrics/gynecology
| All visits n % | Private n% | Medicaid n% | Uninsured n% | |
| Patient visits (n raw) | 16,350 | 12,587 (77%) | 3,094 (19%) | 669 (4%) |
| Patient visits (n weighted) | 316,379,883 | 234,522,770 | 72,154,372 | 9,702,740 |
| Age (years) | 38.8 | 40.8 | 30.4 | 39.3 |
| Sex | ||||
| Male | 3,253 (20%) | 2,744 (22%) | 280 (9%) | 229 (34%) |
| Female | 13,097 (80%) | 9,843 (78%) | 2,814 (91%) | 440 (66%) |
| Race-Ethnicity | ||||
| Non-Hispanic White | 11,417 (70%) | 9,536 (76%) | 1,487 (48%) | 394 (59%) |
| Non-Hispanic Black | 1,930 (12%) | 1,142 (9%) | 702 (23%) | 86 (13%) |
| Hispanic | 2,062 (13%) | 1,172 (9%) | 757 (24%) | 133 (20%) |
| Non-Hispanic other | 941 (6%) | 737 (6%) | 148 (5%) | 56 (8%) |
| Physician speciality category | ||||
| General and family practice | 4,359 (28%) | 3,422 (27%) | 669 (22%) | 268 (40%) |
| Internal medicine | 2,338 (15%) | 2,010 (16%) | 209 (7%) | 119 (18%) |
| Pediatrics | 347 (2%) | 274 (2%) | 56 (2%) | 17 (3%) |
| OB/GYN | 8,328 (53%) | 6,122 (49%) | 1,979 (64%) | 227 (34%) |
| Other | 294 (2%) | 261 (2%) | 21 (1%) | 12 (2%) |
| Unknown | 684 (4%) | 498 (4%) | 100 (3%) | 26 (4%) |
| Visit duration (minutes)* [95% CI] | 21.4 [20.9, 22.0] | 22.0 [21.5, 22.6] | 19.4 [18.4, 20.3] | 20.1 [18.4, 21.7] |
| Difference (minutes)* (weighted) [95% CI] | -- | 1.0 [Reference] | -2.68 [-3.72, -1.64] | -1.97 [3.67, -0.27] |