Table 1.
Baseline demographics of eligible study participants.
| Variable | MOST |
||
|---|---|---|---|
| No RKOA (N = 545) | No Symptomatic RKOA (N = 529) | No Knee Pain (N = 545) | |
| Age (years) (median, IQR) | 60 (54–66) | 60 (54–66) | 60 (54–66) |
| Sex, n (% female) | 312 (57.3) | 303 (57.3) | 312 (57.3) |
| BMI (kg/m2) (mean, SD) |
28.9 (4.3) |
28.8 (4.3) |
28.8 (4.3) |
|
Charlson Comorbidity Score, n (%) | |||
| 0 | 431 (79.1) | 418 (79.0) | 429 (78.7) |
|
≥1 |
114 (20.9) |
111 (21.0) |
116 (21.3) |
|
Race | |||
| White or Caucasian | 492 (90.3) | 480 (90.7) | 490 (89.9) |
| Black or African American | 45 (8.3) | 41 (7.8) | 47 (8.6) |
|
Other |
8 (1.4) |
8 (1.5) |
8 (1.5) |
|
Ankle pain, n (%) | |||
| Neither ankle | 464 (85.2) | 453 (85.7) | 462 (84.8) |
| Right only | 17 (3.1) | 16 (3.0) | 17 (3.1) |
| Left only | 11 (2.0) | 10 (1.9) | 11 (2.0) |
| Both | 47 (8.6) | 44 (8.3) | 50 (9.2) |
|
Missing |
6 (1.1) |
6 (1.1) |
5 (0.9) |
|
Foot pain, n (%) | |||
| Neither foot | 372 (68.3) | 363 (68.6) | 370 (67.9) |
| Right only | 45 (8.3) | 45 (8.5) | 47 (8.6) |
| Left only | 41 (7.5) | 39 (7.4) | 41 (7.5) |
| Both | 81 (14.8) | 76 (14.4) | 82 (15.1) |
|
Missing |
6 (1.1) |
6 (1.1) |
5 (0.9) |
|
Foot and ankle pain, n (%) | |||
| No | 362 (66.4) | 353 (66.7) | 358 (65.7) |
| Yes | 65 (11.9) | 60 (11.4) | 66 (12.1) |
| Other combination/Missing | 118 (21.7) | 116 (21.9) | 121 (22.2) |
Abbreviations: BMI, body mass index; SD, standard deviation; IQR, inter-quartile range; RKOA, radiographic knee osteoarthritis (OA).