Smoking | Effect estimate, FEV1, L | Effect estimate, FVC, L | Effect estimate, FEV1:FVC | |||
β | 95% CI | β | 95% CI | β | 95% CI | |
All* | n=480† | n=478‡ | n=478§ | |||
Never | Reference | Reference | Reference | |||
Quit >1 year ago | 0.026 | −0.127 to 0.178 | 0.056 | −0.097 to 0.209 | −0.007 | −0.032 to 0.017 |
Quit <1 year ago | −0.245 | −0.485 to − 0.004 | −0.065 | −0.304 to 0.173 | −0.041 | −0.079 to − 0.002 |
Occasional | −0.033 | −0.277 to 0.211 | −0.045 | −0.287 to 0.197 | 0.010 | −0.029 to 0.049 |
Regular | −0.208 | −0.355 to − 0.061 | −0.055 | −0.202 to 0.092 | −0.054 | −0.077 to − 0.030 |
Men¶ | n=166† | n=165‡ | n=165§ | |||
Never | Reference | Reference | Reference | |||
Quit >1 year ago | 0.025 | −0.297 to 0.346 | −0.088 | −0.381 to 0.205 | 0.016 | −0.031 to 0.063 |
Quit <1 year ago | −0.428 | −0.902 to 0.046 | −0.207 | −0.635 to 0.221 | −0.063 | −0.131 to 0.006 |
Occasional | 0.033 | −0.564 to 0.631 | 0.045 | −0.495 to 0.585 | −0.004 | −0.090 to 0.083 |
Regular | −0.235 | −0.568 to 0.098 | −0.109 | −0.410 to 0.192 | −0.051 | −0.099 to − 0.003 |
Women¶ | n=314† | n=313‡ | n=313§ | |||
Never | Reference | Reference | Reference | |||
Quit >1 year ago | 0.025 | −0.134 to 0.184 | 0.155 | −0.022 to 0.332 | −0.023 | −0.053 to 0.007 |
Quit <1 year ago | −0.144 | −0.394 to 0.105 | −0.085 | −0.363 to 0.192 | −0.021 | −0.067 to 0.026 |
Occasional | −0.018 | −0.247 to 0.211 | −0.104 | −0.359 to 0.151 | 0.015 | −0.028 to 0.058 |
Regular | −0.151 | −0.296 to − 0.007 | 0.002 | −0.159 to 0.163 | −0.045 | −0.072 to − 0.018 |
*Adjusted for sex, age, height, education, past 12 months secondhand smoking (SHS), lifetime cumulative SHS, and mould odour.
†Pre-bronchodilator FEV1 is available for 486 participants (167 men and 319 women), of whom smoking status missing for 3 (1 man and 2 women) and height is missing for 3 women.
‡Pre-bronchodilator FVC is available for 484 participants (166 men and 318 women) of whom smoking status missing for 3 (1 man and 2 women) and height is missing for 3 women.
§Pre-bronchodilator FEV1:FVC is available for 484 participants (166 men and 318 women) of whom smoking status missing for 3 (1 man and 2 women) and height is missing for 3.
¶Adjusted for age, height, education, past 12 months SHS, lifetime cumulative SHS and mould odour.