[Retracted] Profound Effect of Pulmonary Surfactant on the Treatment of Preterm Infants with Respiratory Distress Syndrome

Table 3

Comparing the overall condition of children in the three groups.

		Control group (n = 30)	Early group (n = 30)	Late stage group (n = 30)
Hormone use before birth (cases)		20	24	22
Birth weight (cases)	<1000 g	3	3	3
	1001∼1600 g	18	17	18
	1601∼2300 g	9	10	9
RDS (cases)	Level III	20	19	26
	Level IV	10	11	14