Table 2.
Prevalence of knee osteoarthritis and its related factors in the stroke group
| Variable | Knee osteoarthritis (%)a) | uOR (95% CI) | aORb) (95% CI) |
|---|---|---|---|
| Total | 21.0 | - | - |
| Sex | |||
| Male | 10.3 | Reference | - |
| Female | 30.1 | 3.491 (1.717–7.100) | - |
| Age (y) | - | 1.103 (1.049–1.161) | - |
| Age group (y) | |||
| 60–69 | 23.4 | Reference | - |
| 70–79 | 37.2 | 1.621 (0.764–3.437) | - |
| ≥80 | 14.9 | 3.574 (1.401–9.112) | - |
| Income | |||
| Low | 24.3 | Reference | Reference |
| Middle-low | 22.4 | 1.046 (0.438–2.496) | 0.822 (0.331–2.041) |
| Middle-high | 4.8 | 0.606 (0.278–1.321) | 0.641 (0.270–1.521) |
| High | 5.9 | 0.465 (0.164–1.314) | 0.463 (0.155–1.385) |
| Education | |||
| ≤Middle school | 22.6 | Reference | Reference |
| ≥High school | 8.1 | 0.167 (0.066–0.424) | 0.304 (0.113–0.818) |
| Obesity | |||
| No | 20.6 | Reference | Reference |
| Yes | 19.7 | 1.569 (0.606–4.063) | 0.946 (0.359–2.496) |
| Alcohol intake per week | |||
| No drinking | 21.6 | Reference | Reference |
| ≤1 | 17.3 | 0.478 (0.220–1.036) | 0.844 (0.372–1.914) |
| 2–3 | 6.5 | 0.121 (0.015–0.966) | 0.276 (0.035–2.172) |
| ≥4 | 22.9 | 0.634 (0.200–2.010) | 1.192 (0.352–4.039) |
| Smoking status | |||
| No | 20.0 | Reference | Reference |
| Yes | 15.7 | 0.421 (0.145–1.226) | 0.823 (0.272–2.489) |
| Walking days per week | |||
| ≤2 | 19.5 | Reference | Reference |
| 3–4 | 10.0 | 0.336 (0.105–1.081) | 0.482 (0.132–1.761) |
| ≥5 | 22.4 | 0.841 (0.426–1.662) | 1.295 (0.615–2.724) |
| Hypertension | |||
| No | 14.6 | Reference | Reference |
| Yes | 20.7 | 2.052 (0.816–5.165) | 1.391 (0.533–3.634) |
| Diabetes | |||
| No | 19.2 | Reference | Reference |
| Yes | 17.0 | 0.960 (0.477–1.933) | 0.788 (0.354–1.757) |
| Cardiovascular disease | |||
| No | 20.9 | Reference | Reference |
| Yes | 9.2 | 0.429 (0.152–1.211) | 0.359 (0.119–1.076) |
uOR, unadjusted odds ratio; aOR, adjusted odds ratio; CI, confidence interval.
a)
Adjusted for age,
b)
adjusted for age and sex.