Table 1.
Sociodemographic Characteristics of Study Participants, 2007-2012*
| Characteristic | Number (% of 255) participants in the training sample |
Number (% of 139) participants in the testing sample |
P value |
|---|---|---|---|
| Gender | 0.005 | ||
| Female | 112 (44) | 82 (59) | |
| Male | 132 (52) | 56 (40) | |
| Missing | 11 (4) | 1 (1) | |
| Race/ethnicity | 0.086 | ||
| White | 166 (65) | 82 (59) | |
| African American | 11 (4) | 15 (11) | |
| Asian | 57 (22) | 27 (19) | |
| Other | 1 (< 1) | 2 (1) | |
| Missing | 20 (8) | 13 (9) | |
| Position | 0.015 | ||
| Fellow or postdoctoral scholar | 74 (29) | 58 (42) | |
| Faculty member | 52 (20) | 18 (13) | |
| Medical student | 45 (18) | 18 (13) | |
| Clinical doctorate student (other than medical student) |
29 (11) | 7 (5) | |
| Resident | 28 (11) | 20 (14) | |
| PhD student | 21(8) | 15 (11) | |
| MD/PhD student | 5 (2) | 1 (1) | |
| Master’s degree student | 0 | 2 (1) | |
| Missing | 1 (< 1) | 0 | |
| Degree type | 0.001 | ||
| MD | 123 (48) | 71 (51) | |
| BS or BA | 72 (28) | 27 (19) | |
| PhD | 13 (5) | 15 (11) | |
| Other doctoral degree | 12 (5) | 8 (6) | |
| MS | 13 (5) | 14 (10) | |
| MD plus PhD | 3 (1) | 4 (3) | |
| No undergraduate degree | 4 (2) | 0 | |
| Missing | 15 (6) | 0 |
*
Because of rounding, percentages may not total 100. The mean (standard deviation) age in years of the participants in the training sample was 31 (6.18) and the mean (standard deviation) age in years of the participants in the testing sample was 32 (5.9) (P = .354).