Table 1.
Demographic comparisons between the four study groups
| Demographic | Asymptomatic group (n = 13) |
Hip OA group (n = 27) |
Knee OA group (n = 20) |
Ankle OA group (n = 30) |
p value |
|---|---|---|---|---|---|
| Age (years) | 49.8 ± 7.4 41–67 |
55.6 ± 6.2 41–70 |
61.7 ± 6.5 49–74 |
57 ± 5.4 45–70 |
< 0.0001* ^ |
| Mass (kg) | 70.3 ± 9.3 56–87 |
85.3 ± 20.4 59–127 |
88.4 ± 21.7 53–125 |
88.9 ± 19.8 58–134 |
0.030 + |
| Height (m) | 1.67 ± 0.19 (1.07–1.85) |
1.73 ± 0.09 (1.58–1.93) |
1.69 ± 0.09 (1.58–1.83) |
1.69 ± 0.10 (1.53–1.85) |
0.402 |
| BMI (kg/m2) | 26.2 ± 8.6 (21.3–54.1) |
28.3 ± 5.4 (20.4–43.7) |
30.7 ± 6.6 (21.3–46.0) |
30.8 ± 5.2 (21.3–40.1) |
0.084 |
| Sex | M = 8 (62%) F = 5 (38%) |
M = 14 (52%) F = 13 (48%) |
M = 7 (35%) F = 13 (65%) |
M = 14 (47%) F = 16 (53%) |
OA = osteoarthritis; mean ± SD (range) for age, mass, height, and BMI; *difference between asymptomatic and all OA groups; +difference between asymptomatic and ankle OA cohorts; ^difference between knee OA and hip OA cohorts.