TABLE 1.
Baseline characteristics of the study population stratified by weight-loss at 1-year follow-up visit.
| Characteristic at Baseline N = 75 |
< 20% Weight Loss at 1-Year N = 35 |
≥ 20% Weight Loss at 1-Year N = 40 |
|---|---|---|
| Age [mean (SD), median] | 47.3 (8.3), 49.0 | 42.5 (9.6), 49.0 |
| Female (%) | 30 (85.7) | 39 (97.5) |
| African-American (%) | 27 (77.1) | 19 (47.5) |
| Bariatric surgery (%) | 8 (22.9) | 39 (97.5) |
| BMI [mean (SD), median] | 40.9 (4.5), 40.0 | 42.3 (4.5), 41.6 |
| College/graduate education | 15 (42.9) | 14 (35.0) |
| Employment (%) | 9 (25.7) | 9 (22.5) |
| KL grade (%) | ||
| 0 | 6 (17.1) | 8 (20.0) |
| 1 | 11 (31.4) | 11 (27.5) |
| 2 | 8 (22.9) | 14 (35.0) |
| 3 | 9 (25.7) | 7 (17.5) |
| 4 | 1 (0.0) | 0 (0.0) |
| WOMAC pain (0–24 scale) [mean (SD), median] | 12.5 (4.9), 13.0 | 11.8 (4.2), 12.0 |
| BML worst score > 0 (%) | 24 (68.6) | 24 (60.0) |
| Synovitis worst score > 0 (%) | 18 (51.4) | 24 (60.0) |
| Patella PPT [mean (SD), median] | 429.6 (198.1), 412.2 | 345.4 (158.0), 318.1 |
| Wrist PPT [mean (SD), median] | 346.4 (150.0), 299.5 | 351.7 (144.9), 326.0 |
| CES-D scale | 19.3 (11.6), 17.5 | 14.4 (9.2); 11.5 |
Continuous variables are summarized by mean (standard deviation) and median. Categorical variables are summarized by frequency and percentages.
BMI, body mass index; BML, bone marrow lesion; KL, Kellgren-Lawrence; PPT, pressure pain threshold; SD, standard deviation; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.