Table 3

Predicted influence of male gender, BPD and IUGR on FEV₁ and DLCO among children born preterm

		Regression coefficient	95% CI for regression coefficient	p Value	R²	Adjusted R²
FEV₁	Male	−4.9	−9.7 to −0.0	0.05	0.129	0.098
	BPD	−5.2	−9.9 to −0.5	0.03
	IUGR	−6.6	−12.1 to −1.1	0.02
DLCO	Male	3.0	−2.8 to 8.8	0.3	0.148	0.117
	BPD	−5.9	−11.5 to −0.2	0.04
	IUGR	−7.6	−14.2 to −1.0	0.02

BPD, bronchopulmonary dysplasia; DLCO, diffusion capacity of the lung for carbon monoxide; FEV₁, forced expiratory volume in 1 s; IUGR, intrauterine growth restriction; R², proportion of variance explained by the model.