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. Author manuscript; available in PMC: 2022 Jan 15.

Published in final edited form as: J Affect Disord. 2020 Sep 30;279:1–8. doi: 10.1016/j.jad.2020.09.113

Table 1.

Demographic information of the two datasets

Variable	WCM data			CDRN data
	non-PPD	PPD	P	non-PPD	PPD	P
N (%)	14187(93.35)	1010(6.65)		50459(93.49)	3513(6.51)
	Mean ± SD			Mean ± SD
Age, year	33.68 ± 4.54	34.56 ± 4.39	<0.001	28.87 ± 6.20	30.70 ± 6.13	<0.001
Pre-pregnancy BMI, kg/m²	23.92 ± 4.32	24.07 ± 4.51	0.294	28.72 ± 6.29	28.27 ± 6.91	<0.001
# ED visits	1.32 ± 1.24	1.68 ± 1.55	<0.001	5.37 ± 6.87	6.30 ± 9.97	<0.001
	N (%)			N (%)
Race group
White	6794(91.23)	653(8.77)	<0.001	8275(87.57)	1175(12.43)	<0.001
Asian	2784(96.97)	87(3.03)		1535(94.58)	88(5.42)
Black	839(93.85)	55(6.15)		13815(95.24)	690(4.76)
Other combinations	1612(94.16)	100(5.84)		19163(94.09)	1204(5.91)
Unknown	2158(94.94)	115(5.06)		7671(95.56)	356(4.44)