Table 3.
Incidence of hip replacement (THR) due to osteoarthritis in relation to leisure time physical activity
| Physical activity leisure, baseline | Cases, n | RR (95% CI)* | P, trend | RR (95% CI)† | P, trend | RR (95% CI) ‡ | P, trend |
|---|---|---|---|---|---|---|---|
|
THR |
|
|
|
|
|
|
|
|
All |
|
|
|
|
|
|
|
| Low (n = 6935) |
150 |
1.0 |
0.159 |
1.0 |
0.045 |
1.0 |
0.192 |
| Low-moderate (n = 6933) |
144 |
0.94 (0.75, 1.18) |
|
0.93 (0.74, 1.17) |
|
0.97 (0.77, 1.23) |
|
| Moderate-high (n = 6957) |
134 |
0.87 (0.69, 1.10) |
|
0.85 (0.68, 1.08) |
|
0.91 (0.72, 1.16) |
|
| High (n = 6935) |
129 |
0.86 (0.68, 1.09) |
|
0.80 (0.63, 1.01) |
|
0.86 (0.68, 1.10) |
|
|
Men |
|
|
|
|
|
|
|
| Low (n = 2777) |
38 |
1.0 |
0.081 |
1.0 |
0.332 |
1.0 |
0.187 |
| Low-moderate (n = 2634) |
49 |
1.33 (0.87, 2.03) |
|
1.28 (0.84, 1.95) |
|
1.31 (0.86, 2.01) |
|
| Moderate-high (n = 2598) |
43 |
1.18 (0.76, 1.83) |
|
1.09 (0.71, 1.69) |
|
1.15 (0.74, 1.79) |
|
| High (n = 2914) |
60 |
1.51 (1.01, 2.27) |
|
1.31 (0.87, 1.97) |
|
1.40 (0.93, 2.12) |
|
|
Women |
|
|
|
|
|
|
|
| Low (n = 4158) |
112 |
1.0 |
0.003 |
1.0 |
0.002 |
1.0 |
0.008 |
| Low-moderate (n = 4299) |
95 |
0.81 (0.61, 1.06) |
|
0.82 (0.62, 1.07) |
|
0.85 (0.64, 1.12) |
|
| Moderate-high (n = 4359) |
91 |
0.76 (0.58, 1.01) |
|
0.78 (0.59, 1.02) |
|
0.82 (0.62, 1.09) |
|
| High (n = 4021) | 69 | 0.63 (0.47, 0.85) | 0.62 (0.46, 0.83) | 0.66 (0.48, 0.89) |
Incidence of hip replacement due to osteoarthritis during a mean follow-up of 11 years, in relation to leisure time physical activity at baseline (low (Q1), low–moderate (Q2), moderate–high (Q3), and high physical activity (Q4)).
*crude, † adjusted for age, gender, ‡ adjusted for age, gender (for all subjects only), BMI, education, smoking, marital status.