Table 1. Baseline sample characteristics for SIPID cohorts.
| Cohort numbers | Cohort 1 | Cohort 2 | Cohort 3 | Total |
| Training years | 2007-08 | 2008-09 | 2009-10 | 2007-10 |
| Sample sizes | n=13 (%) | n=18 (%) | n=21 (%) | N=52 (%) |
| Race | ||||
| American Indian or Alaska Native | ||||
| Native Hawaiian or Pacific Islander | ||||
| Black or African American | 11 (84) | 17 (94) | 19 (90) | 47 (90) |
| More than 1 Race chosen | ||||
| Declined or did not answer | 1 (8) | 1 (6) | 2 (10) | 4 (8) |
| Asian | 1 (8) | 1 (2) | ||
| White | ||||
| Hispanic or Latino ethnicity | ||||
| Yes | 1 (8) | 1 (6) | 2 (10) | 4 (8) |
| No | 12 (92) | 17 (94) | 19 (90) | 48 (92) |
| Sex | ||||
| Male | 5 (38) | 6 (33) | 9 (43) | 20 (38) |
| Female | 8 (62) | 12 (67) | 12 (57) | 32 (62) |
| Disability | ||||
| Yes | ||||
| No | 13 (100) | 18 (100) | 21 (100) | 52 (100) |
| Faculty rank at SI-1 | ||||
| Other | 2 (15) | 1 (6) | 1 (5) | 4 (8) |
| Instructor or research scientist | 4 (31) | 1 (6) | 3 (14) | 8 (15) |
| Assistant professor | 5 (39) | 14 (77) | 16 (76) | 35 (67) |
| Associate professor | 2 (15) | 2 (11) | 1 (5) | 5 (10) |
| Degree | ||||
| Doctorate (eg, PhD, ScD) | 7 (54) | 10 (56) | 11 (52) | 28 (54) |
| Combined MD/PhD | 1 (5) | 1 (2) | ||
| Medical (eg, MD, DO) | 6 (46) | 8 (44) | 9 (43) | 23 (44) |