Lung Function and Relevant Clinical Factors in Very Low Birth Weight Preterm Infants with Chronic Lung Disease: An Observational Study

Table 1

Comparison of clinical variables between groups.

	CLD (n = 27)	No CLD (n = 18)	value
Gestational age (weeks)	27.19 ± 1.98	29.61 ± 2.33	0.001
Birth weight (kg)	0.92 ± 0.21	1.24 ± 0.16	<0.001
Total days of respiratory support (days)	72.15 ± 21.79	29.61 ± 16.82	<0.001
Duration of intubation (days)	22.69 ± 26.8	2.17 ± 4.71	0.003
Male, n (%)	15 (55.6)	10 (55.6)	1
Prenatal steroid use, n (%)	12 (44.4)	6 (33.3)	0.543
RDS grade ≥3, n (%)	13 (48.1)	6 (33.3)	0.371
PDA, n (%)	20 (74.1)	5 (27.8)	0.005
Exogenous surfactant use, n (%)	10 (37)	2 (11.1)	0.086
Exogenous surfactant use ≥2 times, n (%)	5 (18.5)	1 (5.6)	0.377
Aminophylline use, n (%)	24 (88.9)	11 (61.1)	0.064

All continuous data are presented as mean ± SD. RDS: respiratory distress syndrome; PDA: patent ductus arteriosus.