Investigation of the Prevalence and Diagnosis of Chronic Obstructive Pulmonary Disease in a Group of Elderly Individuals Residing in an Island Area of Ningbo

Table 2

Multivariate logistic regression analysis of residents with COPD.

Variable	B	SE	Wald	Significant	OR value	95% CI
Sex	0.459	0.264	3.023	0.082	1.582	(0.943, 2.655)
Age	0.078	0.011	48.303	<0.01	1.082	(1.058, 1.106)
Smoking	−1.359	0.250	29.441	<0.01	0.257	(0.157, 0.420)