Demographic Characteristics of Primary Care vs Non–Primary Care Physician Assistants
| Characteristic | All, % (N = 18,048) | Non–PrimaryCare, No.(n = 12,015) | Primary Care, No. (n = 6,033) | Primary Care, % (95% CI) | Odds Ratio (95% CI) | P Valuea |
|---|---|---|---|---|---|---|
| Sex | ||||||
| Female | 64.7 | 7,337 | 3,909 | 34.8 (33.9-35.6) | 1.21 (1.13-1.30) | <.001 |
| Male | 35.3 | 4,271 | 1,876 | 30.5 (29.3-31.7) | Ref | |
| Race, categorical | <.001 | |||||
| Asian/Pacific Islander | 4.0 | 466 | 186 | 28.5 (25.1-32.2) | 0.81 (0.68-0.96) | .02 |
| Black | 2.8 | 299 | 162 | 35.1 (30. 8 -39.7 ) | 1.10 ( 0.9 0 -1.33) | .34 |
| Hispanic | 3.7 | 335 | 262 | 43.9 (39.9-48.0) | 1.59 (1.34-1.87) | <.001 |
| American Indian | <1 | 59 | 41 | 41.0 (31.3-51.3) | 1.41 (0.94-2.09) | .09 |
| Other | <1 | 59 | 16 | 21.3 (12.7-32.3) | 0.55 (0.31-0.93) | .03 |
| Race, dichotomous | ||||||
| White | 88.4 | 9,582 | 4,726 | 33.0 (32.3-33.8) | Ref | |
| Nonwhiteb | 11.6 | 1,218 | 667 | 35.4 (33.2-37.6) | 1.11 (1.00-1.23) | .04 |
| Mean | Mean Difference (95% CI) | |||||
| Age, y | – | 40.2 | 42.4 | – | 2.2 (1.9-2.6) | <.001c |
| Age at graduation, y | – | 30.0 | 31.0 | – | 1.0 (0.8-1.2) | <.001c |
Ref = reference category for odds ratios.
Notes: All percentages were calculated from nonmissing data. A total of 1,560 physician assistants were excluded because of incomplete questionnaires.
a Unless otherwise noted, the Fisher exact test was used to calculate P values.
b Sum of categories other than white.
c Two - sample t test.