Table 2. The results of the multiple logistic regression analyses for the household income–physical activity relation in Korea (n = 9,000).
| Physical activity | None vs. At least weekly | ||||||
|---|---|---|---|---|---|---|---|
| Men | Women | ||||||
| OR | 95% CI | p-value | OR | 95% CI | |||
| Household income | Under 1,000,000 won (USD 1,000) | Ref. | Ref. | ||||
| 1,000,000 − 1,500,000 won | 1.088 | 0.751–1.577 | 0.656 | 1.588 | 1.135–2.221 | ** | |
| 1,510,000 − 2,000,000 won | 1.256 | 0.886–1.781 | 0.201 | 1.971 | 1.432–2.715 | *** | |
| 2,010,000 − 2,500,000 won | 1.248 | 0.897–1.735 | 0.189 | 2.450 | 1.805–3.325 | *** | |
| 2,510,000 − 3,000,000 won | 1.334 | 0.956–1.862 | 0.090 | 2.104 | 1.538–2.877 | *** | |
| 3,010,000 − 3,500,000 won | 1.354 | 0.974–1.883 | 0.071 | 2.683 | 1.975–3.644 | *** | |
| 3,510,000 − 4,000,000 won | 1.503 | 1.069–2.114 | 0.019* | 2.388 | 1.733–3.292 | *** | |
| 4,010,000 − 4,500,000 won | 1.643 | 1.143–2.362 | 0.007** | 2.740 | 1.956–3.838 | *** | |
| 4,510,000 − 5,000,000 won | 2.021 | 1.375–2.970 | <0.001*** | 2.687 | 1.857–3.888 | *** | |
| 5,010,000 − 5,500,000 won | 1.134 | 0.741–1.734 | 0.562 | 3.784 | 2.564–5.585 | *** | |
| 5,510,000 − 6,000,000 won | 2.803 | 1.470–-5.345 | 0.002** | 3.043 | 1.639–5.652 | *** | |
| Over 6,000,000 won (USD 6,000) | 2.243 | 1.256–4.005 | 0.006** | 2.737 | 1.410–5.311 | ** | |
Estimate 1$ = 1,000 won. OR, odds ratio; CI, confidence interval; *p<0.05, **p<0.01, ***p<0.001; tested by multiple logistic regression analysis after adjusting for participant age.