Table 2—

Lung function andβ₂-adrenoceptor gene polymorphisms

	FEV₁		FVC
	Subjects n	Volume L	Subjects n	Volume L
Unadjusted^#
≥1 Arg allele	103	2.26	103	2.47
Gly16 homozygotes	65	2.34	65	2.57
p-value		0.25		0.21
≥1 Gln allele	131	2.29	131	2.50
Glu27 homozygotes	37	2.31	37	2.53
p-value		0.78		0.72
Adjusted^¶
≥1 Arg allele	103	2.25	103	2.46
Gly16 homozygotes	65	2.35	65	2.58
p-value		0.013		0.012
≥1 Gln allele	131	2.29	131	2.50
Glu27 homozygotes	37	2.30	37	2.51
p-value		0.81		0.76

Volume data are presented as means; the adjusted means were estimated after adjusting for age, sex and height. FEV₁: forced expiratory volume in one second; FVC: forced vital capacity. ^#: independent sample t-test; ^¶: univariate ANOVA.