Table 4 Clinical characteristics of women WITH and WITHOUT knee pain at follow-up
A) ALL women at follow-up n=797/728a | B) WITH Knee pain n=260 | C) Without knee pain n=534 | P-valueƗ | |||||
|---|---|---|---|---|---|---|---|---|
Mean | (SD) | Mean | (SD) | Mean | (SD) | |||
Muscle Strength (weight adjusted) | ||||||||
Knee extensors (%) | 714 | 192.8 | (36.6) | 184.9 | (39) | 196.8 | (34.7) | <0.001 |
Knee flexors (%) | 714 | 99.3 | (22.4) | 96.6 | (23.1) | 100.9 | (21.7) | 0.011 |
Hamstrings-to quadriceps ratio | 0.52 | (0.09) | 0.53 | (0.11) | 0.51 | (0.08) | 0.044 | |
Body Composition | n | |||||||
Weight (kg) | 726 | 69.3 | (13.2) | 72.2 | (15) | 67.8 | (12) | <0.001 |
BMI (kg/m2) | 726 | 24.6 | (4.5) | 25.6 | (5.2) | 24.1 | (4.0) | <0.001 |
FMI (Total body Fat Mass(kg)/height(m)2 | 726 | 8.5 | (3.4) | 9.2 | (4) | 8.2 | (3) | 0.004 |
Fat Mass-total body (%) | 726 | 33.7 | (0.07) | 34.7 | (8.1) | 33.2 | (6.6) | <0.001 |
Lean Mass-total body (%) | 726 | 62.4 | (0.07) | 61.5 | (7.8) | 62.8 | (6.4) | 0.035 |
Lean Mass-Legs (%) | 726 | 20.9 | (0.02) | 20.6 | (2.2) | 21.0 | (1.9) | 0.015 |
No. | (%) | No. | (%) | No. | (%) | |||
Physical activity level-High, n (%) | 794 | 370 | (46) | 130 | (50) | 240 | (45) | 0.180 |
Physical activity level-Low, n (%) | 794 | 424 | (53) | 130 | (50) | 294 | (55) | |
Knee injury, n (%) | 797 | 120 | (15) | 45 | (17) | 74 | (14) | 0.193 |
Parent with knee OA n (%) | 790 | 263 | (33) | 98 | (38) | 165 | (31) | 0.066 |