FEV1 (mL/year), coefficient (95% CI), n=437 | FVC (mL/year), coefficient (95% CI), n=407 | FEV1/FVC (%/year), coefficient (95% CI), n=407 | FEF25–75 (mL/min/year), coefficient (95% CI), n=407 | PEF (mL/min/year), coefficient (95% CI), n=443 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Β | 95% CI | p Value | β | 95% CI | p Value | β | 95% CI | p Value | β | 95% CI | p Value | β | 95% CI | p Value | |
Group 1 | Reference group | Reference group | Reference group | Reference group | Reference group | ||||||||||
Group 2 | |||||||||||||||
Unadjusted | −45 | −93 to 3 | 0.065 | −35 | −90 to 20 | 0.21 | −0.6 | −2.3 to 1.1 | 0.47 | −25 | −16 to 11 | 0.72 | −170 | −337 to −14 | 0.048 |
Adjusted* | −44 | −91 to 4 | 0.07 | −39 | −93 to 16 | 0.16 | −0.6 | −2.2 to 1.1 | 0.52 | −23 | −158 to 111 | 0.73 | −173 | −341 to −7 | 0.041 |
Group 3 | |||||||||||||||
Unadjusted | −35 | −88 to 17 | 0.18 | −25 | −83 to 32 | 0.39 | −0.5 | −3.0 to 2.0 | 0.69 | −27 | −180 to 126 | 0.73 | −134 | −303 to 35 | 0.12 |
Adjusted* | −39 | −91 to 13 | 0.14 | −36 | −94 to 22 | 0.23 | −0.4 | −2.9 to 2.2 | 0.78 | −19 | −173 to 134 | 0.80 | −137 | −303 to 28 | 0.10 |
*Final model adjusted for age, gender, baseline height, annual change in height, maternal education and secondhand smoke.
PEF, peak expiratory flow.
Bold = statistical significance p<0.05.