Table 3. Relationship between the location of placenta previa and neonatal respiratory distress syndrome.

	RDS (n = 78)	Non-RDS (n = 1989)	P-value
Second trimester			0.001*
No placenta previa, n (%)	64 (82.0)	1,917 (96.4)
Anterior placenta previa, n (%)	7 (9.0)	11 (0.5)	0.003*
Posterior placenta previa, n (%)	7 (9.0)	61 (3.1)	0.087
Time just before delivery			<0.001*
No placenta previa, n (%)	69 (88.5)	1,955 (98.3)
Anterior placenta previa, n (%)	3 (3.8)	8 (0.4)	0.009*
Posterior placenta previa, n (%)	6 (7.7)	26 (1.3)	0.443

RDS, respiratory distress syndrome.

*Statistically significant.