Table 1.
Participant demographics and self-reported recovery time for statistical modeling sample and predictive modeling sample
| Statistical modeling set |
Predictive modeling set |
|||||||
|---|---|---|---|---|---|---|---|---|
| all (n = 1,324) | bone frac. (n = 355) | tendon (n = 773) | knee/hip (n = 196) | all (n = 197) | bone frac. (n = 46) | tendon (n = 125) | knee/hip (n = 26) | |
| Gender | ||||||||
| Female | 1,117 (84) | 307 (86) | 648 (84) | 162 (83) | 169 (86) | 41 (89) | 106 (85) | 22 (85) |
| Male | 203 (15) | 47 (13) | 122 (16) | 34 (17) | 28 (14) | 5 (11) | 19 (15) | 4 (15) |
| Other | 4 (<1) | 1 (<1) | 3 (<1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Race | ||||||||
| White or Caucasian | 1,119 (85) | 302 (85) | 649 (84) | 168 (86) | 168 (85) | 37 (80) | 110 (88) | 21 (81) |
| Black or African American | 52 (4) | 15 (4) | 30 (4) | 7 (4) | 5 (3) | 1 (2) | 4 (3) | 0 (0) |
| Hispanic or Latino | 61 (5) | 14 (4) | 39 (5) | 8 (4) | 8 (4) | 2 (4) | 4 (3) | 2 (8) |
| Other | 45 (3) | 10 (3) | 26 (3) | 9 (5) | 6 (3) | 3 (7) | 2 (2) | 1 (4) |
| Unavailable | 47 (4) | 14 (4) | 29 (4) | 4 (2) | 10 (5) | 3 (7) | 5 (4) | 2 (8) |
| Age, years | ||||||||
| mean (SD) | 36.2 (12.9) | 32.9 (11.1) | 34.9 (11.7) | 47.7 (14.4) | 37.3 (11.6) | 34.2 (8.9) | 36.1 (11.1) | 48.4 (12.4) |
| median (min.-max.) | 34 (18–77) | 31 (18–70) | 33 (18–70) | 51 (18–77) | 35 (18–71) | 32 (19–53) | 34 (18–64) | 49 (24–71) |
| Education | ||||||||
| Doctorate, MD | 29 (2) | 5 (1) | 19 (2) | 5 (3) | 4 (2) | 0 (0) | 4 (3) | 0 (0) |
| Graduate degree | 236 (18) | 58 (16) | 146 (19) | 32 (16) | 33 (17) | 8 (17) | 22 (18) | 3 (12) |
| College degree (AS or BS) | 515 (39) | 133 (37) | 317 (41) | 65 (33) | 89 (45) | 24 (52) | 58 (46) | 7 (27) |
| Some college | 311 (23) | 87 (25) | 183 (24) | 41 (21) | 42 (21) | 7 (15) | 26 (21) | 9 (35) |
| Trade or vocational training | 77 (6) | 23 (6) | 33 (4) | 21 (11) | 8 (4) | 4 (9) | 3 (2) | 1 (4) |
| High school diploma/GED | 107 (8) | 31 (9) | 48 (6) | 28 (14) | 13 (7) | 1 (2) | 8 (6) | 4 (15) |
| No high school diploma | 9 (1) | 5 (1) | 4 (1) | 0 (0) | 1 (1) | 0 (0) | 1 (1) | 0 (0) |
| Unavailable | 40 (3) | 13 (4) | 23 (3) | 4 (2) | 7 (4) | 2 (4) | 3 (2) | 2 (8) |
| Recovery time | ||||||||
| <1 month | 260 (20) | 61 (17) | 164 (21) | 35 (18) | 37 (19) | 6 (13) | 26 (21) | 5 (19) |
| 1–2 months | 257 (19) | 80 (23) | 137 (18) | 40 (20) | 51 (26) | 16 (35) | 29 (23) | 6 (23) |
| 3–5 months | 292 (22) | 96 (27) | 151 (20) | 45 (23) | 52 (26) | 15 (33) | 28 (22) | 9 (35) |
| 6–12 months | 209 (16) | 38 (11) | 142 (18) | 29 (15) | 53 (27) | 7 (15) | 41 (33) | 5 (19) |
| 1 year or longer | 28 (2) | 8 (2) | 17 (2) | 3 (2) | 4 (2) | 2 (4) | 1 (1) | 1 (4) |
| I never fully recovered | 33 (2) | 8 (2) | 20 (3) | 5 (3) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| I'm still recovering | 245 (19) | 64 (18) | 142 (18) | 39 (20) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
Values are n (%) or as stated. Data are summarized for the whole sample cohort (“all“) and by strata by lower limb surgery types: surgery to repair a bone fracture (“bone frac.”), tendon or ligament repair/reconstruction surgery (“tendon“), or knee or hip joint replace ment surgery (“knee/hip”). Age at the time of procedure was estimated based on information from a patient ID-linked survey at a different time point than the medical event survey.