Table 6.

Comparison of the incidence of bronchopulmonary dysplasia and other complications between the two groups of premature infants (n, %)

Groups	Control group (n=47)	Research group (n=47)	χ2	P
Incidence of bronchopulmonary dysplasia	11 (23.40)	4 (8.51)	3.887	0.049
Respiratory tract infection	5 (10.64)	2 (4.26)	0.617	0.432
Pulmonary hypertension	2 (4.26)	0 (0.00)	0.511	0.475
Patent ductus arteriosus	1 (2.13)	0 (0.00)	0.000	1.000
White matter softening	0 (0.00)	1 (2.13)	0.000	1.000
Septicemia	2 (4.26)	0 (0.00)	0.511	0.475
Total incidence	10 (21.28)	3 (6.38)	4.374	0.036