Table 2.
Adjusted odd ratios of smoking status and passive smoking for asthma related questions in worker and non-worker.
| Wheezing | Exercise wheezing | Asthma ever | Asthma current | Asthma aggravation | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| OR (95% CI)† | P-value | OR (95% CI)† | P-value | OR (95% CI)† | P-value | OR (95% CI)† | P-value | OR (95% CI)† | P-value | |
| Worker (n = 551,801) | ||||||||||
| Active smoking status | <0.001* | <0.001* | <0.001* | <0.001* | <0.001* | |||||
| Non-smoker | 1 | 1 | 1 | 1 | 1 | |||||
| Past smoker | 1.43 (1.30 to 1.58) | 1.39 (1.26 to 1.53) | 1.45 (1.32 to 1.60) | 1.74 (1.48 to 2.04) | 1.57 (1.20 to 2.05) | |||||
| Current smoker | 2.07 (1.90 to 2.25) | 1.68 (1.54 to 1.83) | 1.17 (1.06 to 1.29) | 1.33 (1.13 to 1.57) | 1.64 (1.27 to 2.12) | |||||
| Passive smoking, home | <0.001* | <0.001* | <0.001* | <0.001* | 0.864 | |||||
| 0 hour/day | 1 | 1 | 1 | 1 | 1 | |||||
| <1 hour/day | 1.22 (1.11 to 1.33) | 1.31 (1.21 to 1.43) | 1.12 (1.02 to 1.24) | 1.22 (1.03 to 1.44) | 1.02 (0.75 to 1.39) | |||||
| ≥1 hour/day | 1.63 (1.39 to 1.91) | 1.65 (1.42 to 1.93) | 1.39 (1.14 to 1.70) | 1.62 (1.18 to 2.21) | 0.92 (0.67 to 1.27) | |||||
| Passive smoking, work | <0.001* | <0.001* | 0.043* | 0.861 | 0.844 | |||||
| 0 hour/day | 1 | 1 | 1 | 1 | 1 | |||||
| <1 hour/day | 1.09 (1.02 to 1.16) | 1.17 (1.09 to 1.24) | 0.99 (0.92 to 1.06) | 1.04 (0.91 to 1.18) | 1.04 (0.83 to 1.31) | |||||
| ≥1 hour/day | 1.51 (1.39 to 1.65) | 1.59 (1.46 to 1.73) | 1.13 (1.02 to 1.26) | 1.03 (0.84 to 1.25) | 0.95 (0.71 to 1.26) | |||||
| Non-worker (n = 268,909) | ||||||||||
| Smoking status | <0.001* | <0.001* | <0.001* | <0.001* | 0.555 | |||||
| Non-smoker | 1 | 1 | 1 | 1 | 1 | |||||
| Past smoker | 1.77 (1.59 to 1.95) | 1.75 (1.58 to 1.93) | 1.78 (1.60 to 1.98) | 2.24 (1.93 to 2.60) | 0.98 (0.81 to 1.19) | |||||
| Current smoker | 2.42 (2.20 to 2.67) | 2.09 (1.90 to 2.31) | 1.67 (1.48 to 1.86) | 2.07 (1.76 to 2.43) | 1.10 (0.90 to 1.34) | |||||
| Passive smoking, home | <0.001* | <0.001* | 0.042* | 0.286 | 0.861 | |||||
| 0 hour/day | 1 | 1 | 1 | 1 | 1 | |||||
| <1 hour/day | 1.24 (1.13 to 1.37) | 1.25 (1.14 to 1.37) | 1.12 (1.01 to 1.24) | 1.13 (0.96 to 1.33) | 0.93 (0.69 to 1.26) | |||||
| ≥1 hour/day | 1.49 (1.25 to 1.77) | 1.42 (1.19 to 1.69) | 1.14 (0.94 to 1.39) | 1.10 (0.82 to 1.48) | 0.94 (0.63 to 1.39) | |||||
*Statistical significance <0.05.
†Adjusted for age, sex, region of residence, the number of household, income level, educational level, physical activity [MPA], sleep time, stress level, and alcohol consumption, obesity, smoking status, and passive smoking.