Association of circulating angiotensin converting enzyme activity with respiratory muscle function in infants

Respiratory Research

Table 3 Results of stepwise regression analysis of factors related to Pi_max measurements

	Partial Correlation Coefficient	t Value	Significance
Dependent variable: Pi_max
cACE activity	0.262	2.899	0.0045
Weight at measurement	0.244	2.697	0.0081
ACE genotypes		0.317	0.752
Postmenstrual age		0.283	0.778
Gender		0.077	0.939
Duration of mechanicalventilation		1.451	0.150

ISSN: 1465-993X