(b).

Variable	Metformin		Insulin		P value
	N: 67		N: 70
	%	N	%	N
Apgar score at 5 minutes < 7	1.5%	1	1.4%	1	0.59
Gestational age at birth	38.7 ± 1.1		38.9 ± 1.4		0.06
Estimated weight > 90th percentile	14.9%	10	15.7%	11	0.89
Estimated weight < 10th percentile	5.9%	4	7.1%	5	0.31
Congenital anomalies	1.5%	1	2.8%	2	0.91