Table 2.

Participant characteristics by group

Characteristics	Pre NHHS		P-valuea		Post NHHS (n = 780)					P-valueb
	Group 1	(n = 330)			Group 2	(n = 344)	Group 3		(n = 436)
	μ ± SD	Range			μ ± SD	Range	μ ± SD		Range
Mean Gestational Weeks	39.1 ± 1.8	(27,42)	0.319		39.0 ± 2.1	(22,42)	39.0 ± 2.1		(24,44)	0.930
Parity	1.2 ± 1.3	(0,7)	0.788		1.1 ± 1.5	(0,13)	1.3 ± 1.4		(0,7)	0.029
			N	%		N	%	N	%
Baseline BHQ score					0.718					0.048
0–9			278	84		297	86	351	81
10–14			34	10		30	9	63	14
≥15			18	6		17	5	22	5
Age group					0.031					0.596
< 20			64	19		71	21	98	22
20–35			236	72		258	75	314	72
> 35			30	9		15	4	24	5
Race					0.017					< 0.001
White			46	14		35	10	62	14
Black			126	38		95	28	158	36
Hispanic			144	44		210	61	203	47
Other			14	4		4	1	13	3
Interpersonal violence			67	20	0.067	59	17	64	15	0.347
Smoking or using drug/alcohol during pregnancy			60	18	0.251	40	12	69	16	0.106
Preterm delivery			20	6	0.243	27	8	36	8	0.836
Low birth weight			25	8	0.289	19	6	18	4	0.246
Small for gestational age			42	13	0.046	21	6	34	8	0.522
Prenatal care (late registration = 1)			91	28	< 0.001	43	13	58	13	0.954

Group 1: women assessed prior to the beginning of the NHHS Depression Initiative; Group 2: women assessed after beginning of the NHHS Depression Initiative and enrolled in NHHS; Group 3: women assessed after beginning of NHHS but not enrolled in NHHS

^aP-value of Pre- vs. Post-NHHS;

^bP-value of Group 2 vs. Group 3