| |
Univariate |
Multivariate model 1b |
Multivariate model 2c |
| |
OR (95% CI)a |
OR (95% CI) |
OR (95% CI) |
| Sex, age, anthropometric factors, and medical history |
| Sex |
|
|
|
| female (vs. male) |
0.98 (0.65-1.47) |
1.49 (0.93-2.39) |
2.19 (1.15-4.15) |
| Age |
|
|
|
| 40.0 - 56.7 |
1 |
1 |
1 |
| 56.8 - 65.1 |
4.16 (2.41-7.16) |
3.54 (2.01-6.23) |
3.75 (2.10-6.72) |
| 65.2 - 83.7 |
13.3 (7.74-22.9) |
12.4 (6.96-21.9) |
14.9 (8.07-27.5) |
| p for trend |
<0.0001 |
<0.0001 |
<0.0001 |
| Height |
|
|
|
| 136 - 151 |
1 |
|
1 |
| 152 - 156 |
0.75 (0.49-1.15) |
|
1.21 (0.71-2.05) |
| 157 - 183 |
0.61 (0.40-0.93) |
|
1.03 (0.53-2.00) |
| p for trend |
0.020 |
|
0.864 |
| Weight at 40 years of age |
|
|
|
| 35.0 - 49.0 |
1 |
|
1 |
| 50.0 - 55.0 |
1.13 (0.73-1.75) |
|
1.27 (0.76-2.14) |
| 56.0 - 95.0 |
1.45 (0.94-2.24) |
|
2.50 (1.41-4.43) |
| p for trend |
0.093 |
|
0.001 |
| BMI at 40 years of age |
|
|
|
| 15.81 - 21.04 |
1 |
1 |
|
| 21.05 - 23.18 |
1.55 (1.00-2.42) |
1.27 (0.78-2.07) |
|
| 23.19 - 35.37 |
1.95 (1.26-3.01) |
1.76 (1.10-2.84) |
|
| p for trend |
0.003 |
0.019 |
|
| Weight |
|
|
|
| 33.0 - 51.0 |
1 |
|
|
| 52.0 - 58.0 |
1.30 (0.84-2.02) |
|
|
| 59.0 - 96.0 |
1.46 (0.94-2.27) |
|
|
| p for trend |
0.095 |
|
|
| BMI |
|
|
|
| 13.84 - 21.874 |
1 |
|
|
| 21.875 - 24.44 |
1.30 (0.83-2.02) |
|
|
| 24.45 - 38.79 |
1.98 (1.28-3.05) |
|
|
| p for trend |
0.002 |
|
|
| History of treatment for knee injury (≥2 weeks) |
| yes (vs. no) |
2.73 (1.75-4.26) |
2.07 (1.29-3.33) |
2.01 (1.24-3.24) |
| Occupation and lifestyle |
| Occupation |
|
|
|
| physical worker (vs. non-physical worker) |
1.79 (1.25-2.54) |
1.93 (1.31-2.85) |
2.09 (1.41-3.11) |
| Often good posture while sitting before age 40 |
| yes (vs. no) |
1.73 (1.21-2.48) |
1.19 (0.78-1.81) |
1.23 (0.80-1.87) |
a OR = odds ratio, 95% CI = 95% confidence interval
b Multivariate model included sex, age, BMI at 40 years of age, history of treatment for knee injury, occupation, and often good posture while sitting before age 40.
Analysis based on a sample size of 493.
c Multivariate model included sex, age, height, weight at 40 years of age, history of treatment for knee injury, occupation, and often good posture while sitting before age
40. Analysis based on a sample size of 493. |
