Table 2.
Associations between PA and the risk of stroke.
| Variables | Model 1 (n = 6250) | Model 2 (n = 2936) | Model 3 (n = 3314) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | OR | 95% CI | ||||
| Frequency | |||||||||
| VPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 1–2 d/w | 0.92 | 0.46 | 1.81 | 0.68 | 0.29 | 1.6 | 1.56 | 0.54 | 4.54 |
| 3–5 d/w | 0.32 * | 0.14 | 0.75 | 0.43 | 0.18 | 1.05 | N/A | ||
| 6–7 d/w | 0.74 | 0.49 | 1.11 | 0.61 | 0.36 | 1.02 | 1.06 | 0.59 | 1.90 |
| MPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 1–2 d/w | 0.35 * | 0.18 | 0.72 | 0.26 * | 0.09 | 0.78 | 0.53 | 0.21 | 1.32 |
| 3–5 d/w | 0.23 * | 0.12 | 0.46 | 0.28 * | 0.12 | 0.63 | 0.14 * | 0.04 | 0.46 |
| 6–7 d/w | 0.40 * | 0.27 | 0.58 | 0.34 * | 0.20 | 0.60 | 0.46 * | 0.28 | 0.78 |
| LPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 1–2 d/w | 0.74 | 0.29 | 1.90 | 0.49 | 0.10 | 2.45 | 1.30 | 0.44 | 3.81 |
| 3–5 d/w | 0.89 | 0.49 | 1.60 | 0.89 | 0.43 | 1.84 | 0.76 | 0.27 | 2.18 |
| 6–7 d/w | 0.92 | 0.61 | 1.39 | 0.79 | 0.45 | 1.38 | 1.13 | 0.63 | 2.03 |
| Duration | |||||||||
| VPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 10–29 min/d | 0.60 | 0.14 | 2.55 | 0.82 | 0.18 | 3.64 | N/A | ||
| 30–119 min/d | 0.60 | 0.26 | 1.37 | 0.46 | 0.18 | 1.21 | 1.06 | 0.26 | 4.26 |
| 120–239 min/d | 0.82 | 0.46 | 1.45 | 0.71 | 0.34 | 1.51 | 1.05 | 0.46 | 2.4 |
| ≥240 min/d | 0.60 * | 0.38 | 0.94 | 0.53 * | 0.30 | 0.93 | 0.80 | 0.40 | 1.57 |
| MPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 10–29 min/d | 0.31 * | 0.14 | 0.65 | 0.35 | 0.12 | 1.03 | 0.27 * | 0.10 | 0.75 |
| 30–119 min/d | 0.32 * | 0.20 | 0.53 | 0.27 * | 0.13 | 0.56 | 0.38 * | 0.19 | 0.75 |
| 120–239 min/d | 0.40 * | 0.24 | 0.67 | 0.35 * | 0.17 | 0.72 | 0.49 * | 0.25 | 0.99 |
| ≥240 min/d | 0.40 * | 0.23 | 0.68 | 0.34 * | 0.17 | 0.68 | 0.51 | 0.23 | 1.15 |
| LPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 10–29 min/d | 0.68 | 0.39 | 1.20 | 0.50 | 0.23 | 1.07 | 1.03 | 0.45 | 2.34 |
| 30–119 min/d | 1.05 | 0.66 | 1.66 | 0.92 | 0.49 | 1.75 | 1.25 | 0.68 | 2.31 |
| 120–239 min/d | 0.84 | 0.51 | 1.39 | 0.78 | 0.41 | 1.50 | 0.91 | 0.42 | 1.95 |
| ≥240 min/d | 0.75 | 0.43 | 1.32 | 0.61 | 0.29 | 1.26 | 1.02 | 0.42 | 2.44 |
| Volume | |||||||||
| VPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 10–74 min/w | 1.30 | 0.30 | 5.58 | 1.86 | 0.40 | 8.62 | N/A | ||
| 75–299 min/w | 0.40 | 0.10 | 1.56 | 0.14 | 0.02 | 1.08 | 1.34 | 0.26 | 6.95 |
| ≥300 min/w | 0.68 * | 0.46 | 0.99 | 0.61 * | 0.38 | 0.99 | 0.84 | 0.49 | 1.44 |
| MPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| 10–149 min/w | 0.34 * | 0.18 | 0.66 | 0.34 * | 0.12 | 0.92 | 0.35 * | 0.15 | 0.84 |
| 150–299 min/w | 0.16 * | 0.04 | 0.69 | 0.26 | 0.06 | 1.17 | N/A | ||
| ≥300 min/w | 0.38 * | 0.26 | 0.55 | 0.32 * | 0.19 | 0.54 | 0.47 * | 0.29 | 0.78 |
| LPA | |||||||||
| No activity | 1.00 | 1.00 | 1.00 | ||||||
| <150 min/w | 0.70 | 0.41 | 1.21 | 0.47 | 0.22 | 1.01 | 1.15 | 0.53 | 2.50 |
| 150–299 min/w | 0.54 | 0.15 | 1.99 | 0.63 | 0.13 | 3.15 | 0.37 | 0.05 | 2.85 |
| ≥300 min/w | 0.97 | 0.64 | 1.45 | 0.86 | 0.50 | 1.48 | 1.13 | 0.63 | 2.03 |
Abbreviations: OR, odds ratio; CI, confidence interval; PA, physical activity; VPA, vigorous physical activity; MPA, moderate physical activity; LPA, light physical activity; OR was adjusted for age, sex, educational status, marital status, drinking, smoking, BMI, and case weights; Model 1 was established for the total participants; Model 2 and model 3 were established for men and women, respectively; N/A denoted that no applicable value was observed; *: p < 0.05.