Patients’ demographic characteristics, stratified by provider type, NAMCS 2012–2016
| N*1000 % (95% Confidence Interval) | ||||||||
| Characteristic | Total | Solo-physician | Solo-PA | Solo-NP | Physician-PA | Physician-NP | Other collaboration | P value |
| Sex | ||||||||
| Female | 2 410 872 | 2 222 316 | 9787 | 8107 | 121 084 | 48 499 | 1076 | 0.36 |
| 58.3 (57.6 to 59.0) | 58.1 (57.4 to 58.9) | 54.6 (48.4 to 60.8) | 54.9 (45.5 to 64.4) | 60.9 (56.6 to 65.3) | 59.1 (55.9 to 62.2) | 61.4 (48.7 to 74.1) | ||
| Male | 1 726 453 | 1 599 754 | 8133 | 6657 | 77 613 | 33 618 | 676 | |
| 41.7 (41.0 to 42.4) | 41.9 (41.2 to 42.6) | 45.4 (39.2 to 51.6) | 45.1 (35.6 to 54.6) | 39.1 (34.7 to 43.4) | 40.9 (37.8 to 44.1) | 38.6 (25.9 to 51.3) | ||
| Race | ||||||||
| White | 3 457 833 | 3 207 866 | 15 800 | 12 958 | 149 073 | 70 607 | 1526 | <0.01 |
| 83.6 (82.4 to 84.7) | 83.9 (82.8 to 85.1) | 88.2 (83.7 to 92.7) | 87.8 (81.9 to 93.6) | 75.0 (68.6 to 81.4) | 86.0 (82.8 to 89.1) | 87.0 (75.4 to 98.7) | ||
| Black | 434 501 | 393 206 | 1640 | 1083 | 30 356 | 8006 | 207 | |
| 10.5 (9.9 to 11.2) | 10.3 (9.7 to 10.9) | 9.2 (5.0 to 13.4) | 7.3 (4.1, 10. 6) | 15.3 (10.6 to 20.0) | 9.8 (7.5 to 12.0) | 11.9 (0.5 to 23.3) | ||
| Other | 244 991 | 220 998 | 479 | 723 | 19 267 | 3502 | 191 | |
| 5.9 (4.9 to 6.9) | 5.8 (4.7 to 6.8) | 2.7 (1.0 to 4.3) | 4.9 (1.0 to 8.9) | 9.7 (6.3 to 13.1) | 4.3 (2.5 to 6.1) | 1.1 (0.0 to 2.8) | ||
| Ethnicity | ||||||||
| Hispanic/Latino | 551 903 | 491 346 | 3036 | 1903 | 47 233 | 8259 | 124 | <0.01 |
| 13.3 (12.3 to 14.4) | 12.9 (11.8 to 14.0) | 16.9 (8.6 to 25.3) | 12.9 (4.4 to 21.4) | 23.8 (19.4 to 28.2) | 10.1 (7.6 to 12.6) | 7.1 (3.0 to 11.2) | ||
| Non-Hispan/Latino | 3 585 422 | 3 330 724 | 14 884 | 12 862 | 151 464 | 73 857 | 1629 | |
| 86.7 (85.6 to 87.7) | 87.1 (86.0 to 88.3) | 83.1 (74.7 to 91.5) | 87.1 (78.6 to 95.6) | 76.2 (71.8 to 80.7) | 89.9 (87.5 to 92.4) | 92.9 (88.8 to 97.0) | ||
| Age | ||||||||
| <15 | 593 134 | 540 191 | 2496 | 3354 | 31 860 | 15 001 | 229 | 0.02 |
| 14.3 (13.3 to 15.4) | 14.1 (13.1 to 15.2) | 13.9 (5.4 to 22.4) | 22.7 (11.7 to 33.7) | 16.0 (9.0 to 23.1) | 18.3 (8.9 to 27.7) | 13.1 (0.0 to 30.0) | ||
| 15–24 | 298 158 | 278 863 | 1349 | 998 | 11 239 | 5566 | 142 | |
| 7.2 (6.8 to 7.6) | 7.3 (6.9 to 7.7) | 7.5 (4.3 to 10.8) | 6.8 (4.5 to 9.1) | 5.7 (4.0 to 7.3) | 6.8 (4.7 to 8.8) | 8.1 (1.9 to 14.3) | ||
| 25–44 | 778 408 | 725 937 | 3392 | 3802 | 32 094 | 12 940 | 241 | |
| 18.8 (18.1 to 19.5) | 19.0 (18.3 to 19.7) | 18.9 (14.2 to 23.7) | 25.8 (16.5 to 35.0) | 16.2 (12.0 to 20.3) | 15.8 (12.1 to 19.5) | 13.8 (3.3 to 24.2) | ||
| 45–64 | 1 250 891 | 1 144 988 | 5624 | 3683 | 73 499 | 22 497 | 597 | |
| 30.2 (29.5 to 30.9) | 30.0 (29.3 to 30.6) | 31.4 (25.7 to 37.1) | 25.0 (17.7 to 32.2) | 37.0 (31.7 to 42.3) | 27.4 (23.4 to 31.4) | 34.1 (24.2 to 44.0) | ||
| 65–74 | 644 858 | 596 011 | 2615 | 1732 | 30 836 | 13 394 | 267 | |
| 15.6 (15.1,16.1) | 15.6 (15.1 to 16.1) | 14.6 (10.7 to 18.5) | 11.7 (6.8 to 16.6) | 15.5 (12.4 to 18.6) | 16.3 (11.0 to 21.7) | 15.3 (8.2 to 22.4) | ||
| ≥75 | 571 874 | 536 079 | 2441 | 1192 | 19 168 | 12 717 | 275 | |
| 13.8 (13.2 to 14.4) | 14.0 (13.4 to 14.6) | 13.6 (9.2 to 18.1) | 8.1 (3.4 to 12.8) | 9.7 (7.7 to 11.6) | 15.5 (11.8 to 19.2) | 15.7 (6.6 to 24.8) | ||
| Total per provider | 4 137 326 | 3 822 071 | 17 920 | 14 765 | 198 698 | 82 117 | 1753 | |
| %* | 100 | 92.38 | 0.43 | 0.36 | 4.80 | 1.98 | 0.04 | |
*The percentages in total rows are percent of provider out of the total visits.
NAMCS, National Ambulatory Medical Care Survey; NP, nurse practitioner; PA, physician assistant.