Table 2.

Behavioral results of n-back task.

	Control group (n = 27)	Postpartum group (n = 24)	P value
RT (ms)
0-back	476.7 ± 49.5	496.6 ± 50.7	0.163
1-back	436.2 ± 47.7	464.0 ± 58.9	0.069
2-back	533.3 ± 83.0	560.8 ± 72.8	0.218
overall*	482.2 ± 44.9	507.1 ± 49.0	0.063
Accuracy
0-back	100.0 (91.7–100.0)	(100.0 (100.0–100.0)	0.348
1-back	100.0 (100.0–100.0)	(100.0 (100.0–100.0)	0.770
2-back	91.7 (75.0–100.0)	91.7 (83.3–91.7)	0.415
overall	94.4 (86.1–100.0)	94.4 (88.9–97.2)	0.909

Normally distributed data are expressed as mean ± standard deviation; otherwise, data are expressed as medians with the interquartile range in parentheses. Abbreviations: RT, Response time.