TABLE 2.

Outcome measures of subject

	Ketamine (n = 153)	Saline (n = 155)	P
2 days postpartum
NRS score
Wound pain	3.0 ± 0.9	4.0 ± 1.0	<.001
Contraction pain	3.0 ± 0.9	4.1 ± 0.9	<.001
Sleep duration	4.8 ± 2.0.3	4.4 ± 2.0	.115
1 week postpartum
EPDS score	7.5 ± 2.2	8.2 ± 2.0	<.001
Occurrence of postpartum depression	20 (13.1%)	35 (22.6%)	.029
2 weeks postpartum
EPDS score	7.4 ± 2.0	7.8 ± 2.1	.155
Occurrence of postpartum depression	18 (11.8%)	26 (16.8%)	.209
1 month postpartum
EPDS score	7.3 ± 2.1	7.5 ± 2.2	.366
Occurrence of postpartum depression	16 (10.5%)	22 (14.2%)	.319