Table 1.
Baseline Characteristics of Participants by MSK Pain Statusa
| Characteristic | Total (N = 233) |
MSK Pain (n = 173) |
No MSK Pain (n = 56) |
P Value |
|---|---|---|---|---|
| Age at surgery, mean (SD), y | 17.1 (1.56) | 17.2 (1.58) | 16.7 (1.46) | .03 |
| Female, No. (%) | 179 (77) | 131 (76) | 44 (79) | .66 |
| White, No. (%) | 171 (73) | 131 (76) | 36 (64) | .31 |
| Non-Hispanic, No. (%) | 216 (93) | 159 (92) | 53 (95) | .77 |
| BMI, median (IQR) | 50.4 (45.2–57.4) | 50.5 (45.5–57.4) | 48.8 (43.4–57.9) | .17 |
| HAQ-DI score, median (IQR)b,c | 0 (0–0.38) | 0.125 (0.0–0.500) | 0.0 (0.0–0.125) | <.01 |
| Impaired physical functional status, No. (%)c,d | 113 (49) | 96 (56) | 17 (30) | <.01 |
| BDI-II total score, median (IQR)e | 6.0 (2–12) | 7.0 (2–12) | 4.0 (1–8) | <.01 |
| Depressive symptoms, No. (%)e,f | 32 (15) | 29 (18) | 3 (6) | .03 |
| IWQOL score, mean (SD)g | ||||
| Total | 62.9 (17.93) | 59.7 (17.33) | 72.6 (16.77) | <.01 |
| Physical comfort | 53.1 (24.78) | 47.1 (22.72) | 70.7 (22.64) | <.01 |
| High-sensitivity C-reactive protein, median (IQR), mg/Lc | 6.3 (3.0–11.7) | 7.1 (3.4–13.3) | 4.5 (2.5–8.8) | .03 |
Abbreviations: BDI-II, Beck Depression Inventory–II; BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); HAQ-DI, Health Assessment Questionnaire Disability Index; IQR, interquartile range; IWQOL, Impact of Weight on Quality of Life–Kids; MSK, musculoskeletal.
SI conversion factor: To convert high-sensitivity C-reactive protein to nanomoles per liter, multiply by 9.524.
Musculoskeletal pain was defined as any reported level of lower back, hip, knee, or ankle/foot pain (data missing for 4 participants).
Score of 0 indicates normal physical functional status; score greater than 0, impaired physical functional status.
Data missing for 4 participants.
Score on HAQ-DI greater than 0.
Data missing for 14 participants.
Score on BDI-II of 17 or greater.
Data missing for 9 participants.