Effects of smoking in pregnancy on neonatal lung function

Table 4

Results of regression analysis of lung mechanics measurements against numbers of cigarettes smoked

	Group	Number	Slope coefficient	SE	r2	p Value
Static compliance	Boys	148	−0.094	0.013	0.159	0.0001
	Girls	140	−0.023	0.014	0.019	0.11
Static compliance/weight	Boys	148	−0.015	0.004	0.094	0.0001
	Girls	140	−0.002	0.004	0.001	0.653
Specific static compliance	Boys	132	−0.0004	0.0001	0.098	0.0003
	Girls	138	−0.00002	0.0004	0.0002	0.884
Dynamic compliance	Boys	130	0.001	0.015	0.00001	0.927
	Girls	126	−0.016	0.015	0.009	0.299
Respiratory conductance	Boys	148	−0.000027	0.0000 03	0.004	0.421
	Girls	140	−0.00010	0.0000 34	0.061	0.0033
Specific respiratory conductance	Boys	131	−0.00036	0.0004 5	0.005	0.429
	Girls	132	−0.00037	0.0005	0.004	0.45
Pulmonary conductance	Boys	130	−0.000063	0.0003	0.0003	0.86
	Girls	125	−0.00041	0.0005	0.034	0.041
Specific pulmonary conductance	Boys	113	−0.0018	0.004	0.002	0.68
	Girls	117	−0.0028	0.002	0.051	0.195

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Effects of smoking in pregnancy on neonatal lung function

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