Table 3 Adjusted odd ratios of each smoking pattern for asthma related questions in past and current smoker.
Number (%*) | Wheezing | Exercise wheezing | Asthma ever | Asthma current | |||||
|---|---|---|---|---|---|---|---|---|---|
OR (95% CI) ‡ | P-value | OR (95% CI) ‡ | P-value | OR (95% CI) ‡ | P-value | OR (95% CI) ‡ | P-value | ||
Cigarette | <0.001† | <0.001† | <0.001† | 0.003† | |||||
1–10/day | 121,219 (42.2) | 1 | 1 | 1 | 1 | ||||
11–20/day | 150,477 (47.6) | 1.31 (1.23 to 1.40) | 1.26 (1.19 to 1.34) | 1.06 (0.99 to 1.14) | 1.12 (1.01 to 1.25) | ||||
21–30/day | 19,885 (5.6) | 1.68 (1.51 to 1.87) | 1.55 (1.39 to 1.72) | 1.25 (1.11 to 1.42) | 1.28 (1.06 to 1.54) | ||||
≥31/day | 18,379 (4.6) | 1.57 (1.40 to 1.75) | 1.45 (1.30 to 1.62) | 1.26 (1.12 to 1.43) | 1.32 (1.12 to 1.57) | ||||
Total smoking time | <0.001† | <0.001† | <0.001† | <0.001† | |||||
≤13 year | 78,525 (32.7) | 1 | 1 | 1 | 1 | ||||
14–22 year | 77,736 (27.5) | 0.95 (0.87 to 1.04) | 0.91 (0.83 to 0.99) | 0.67 (0.61 to 0.73) | 0.92 (0.77 to 1.09) | ||||
23–33 year | 78,214 (23.8) | 1.14 (1.04 to 1.25) | 1.00 (0.91 to 1.09) | 0.66 (0.60 to 0.73) | 0.93 (0.79 to 1.10) | ||||
≥34 year | 7,548 (16.1) | 1.85 (1.69 to 2.04) | 1.65 (1.51 to 1.81) | 1.03 (0.94 to 1.13) | 1.30 (1.12 to 1.51) | ||||
Total pack-year | <0.001† | <0.001† | <0.001† | <0.001† | |||||
≤7.25 | 77,575 (31.3) | 1 | 1 | 1 | 1 | ||||
>7.25, ≤17 | 79,862 (28.0) | 1.00 (0.91 to 1.09) | 0.95 (0.87 to 1.04) | 0.79 (0.72 to 0.87) | 0.99 (0.84 to 1.16) | ||||
>17, ≤30 | 80,116 (23.9) | 1.28 (1.17 to 1.40) | 1.18 (1.09 to 1.29) | 0.85 (0.77 to 0.93) | 1.18 (1.01 to 1.37) | ||||
>30 | 72,407 (16.8) | 1.77 (1.61 to 1.93) | 1.52 (1.39 to 1.66) | 1.08 (0.99 to 1.18) | 1.33 (1.15 to 1.53) | ||||
Quitting duration | <0.001† | <0.001† | 0.005† | 0.001† | |||||
1–5 year | 28,009 (26.1) | 1 | 1 | 1 | 1 | ||||
6–11 year | 31,264 (28.2) | 0.81 (0.71 to 0.92) | 0.88 (0.78 to 1.00) | 0.94 (0.82 to 1.07) | 1.05 (0.88 to 1.26) | ||||
12–20 year | 29,244 (24.7) | 0.70 (0.61 to 0.79) | 0.73 (0.65 to 0.83) | 0.86 (0.75 to 0.97) | 0.87 (0.73 to 1.05) | ||||
≥21 year | 30,545 (21.0) | 0.64 (0.56 to 0.73) | 0.65 (0.58 to 0.74) | 0.81 (0.71 to 0.92) | 0.75 (0.63 to 0.90) | ||||
Starting age | <0.001† | <0.001† | <0.001† | <0.001† | |||||
≤15 years-old | 18,017 (6.1) | 1 | 1 | 1 | 1 | ||||
16–19 years-old | 106,807 (37.8) | 0.75 (0.68 to 0.83) | 0.76 (0.68 to 0.84) | 0.78 (0.70 to 0.88) | 0.86 (0.72 to 1.03) | ||||
20–25 years-old | 154,145 (48.4) | 0.59 (0.54 to 0.65) | 0.61 (0.55 to 0.68) | 0.66 (0.59 to 0.74) | 0.71 (0.60 to 0.85) | ||||
≥26 years-old | 30,991 (7.7) | 0.54 (0.48 to 0.61) | 0.53 (0.47 to 0.60) | 0.59 (0.52 to 0.68) | 0.60 (0.49 to 0.74) | ||||
