Table 4 Mutually adjusted effects of birth weight, proportional sitting height and childhood growth on adult FEV₁ and FVC within each cohort

Outcome	Explanatory variables	Units	1946 Cohort increment (95% CI)	1958 Cohort increment (95% CI)
FEV₁ (ml)	Birth weight	Per 1 kg	41.3 (−4.7 to 87.5)	66.6 (41.3 to 92.0)***
	Adult sitting height	% Standing	10.2 (−3.5 to 24.0)	11.1 (3.1 to 19.1)**
	Height at 7 years	% Standing	4.8 (−3.8 to 13.4)	−0.6 (−5.5 to 4.3)
FVC (ml)	Birth weight	Per 1 kg	47.9 (−13.0 to 108.9)	47.6 (14.8 to 80.4)**
	Adult sitting height	% Standing	10.9 (−6.5 to 28.3)	25.2 (14.6 to 35.7)***
	Height at 7 years	% Standing	7.9 (−4.4 to 20.2)	1.9 (−4.5 to 8.3)

Adjusted for gender, adult height, smoking status, childhood social class and air pollution exposure.
*p<0.05, **p<0.01, ***p<0.001.