Table 1.

Characteristics of non-infection stillbirths and infection stillbirths

		Stillbirth, No Infection * N = 446	Infection-related Stillbirth * N = 66	P-value
Maternal age (years)				0.555
<20	N	54	6
	%	12.1	9
20-34	N	321	53
	%	72.0	80
35-39	N	53	5
	%	11.9	8
40+	N	18	2
	%	4.0	3
Gestational age (weeks)	Median	28	22	0.001
	IQR	(23, 35)	(21, 32)
Intrapartum stillbirth				<0.001
Intrapartum	N	63	24
	%	14.1	36
Antepartum	N	383	42
	%	85.9	64
Maternal race/ethnicity				<0.001
White, non-Hispanic	N	171	12
	%	38.3	18
Black, non-Hispanic	N	86	29
	%	19.3	45
Hispanic	N	160	16
	%	35.9	25
Other	N	29	8
	%	6.5	12
Missing	N	0	1
Body mass index (kg/m2)				0.488†
<30	N	307	44
	%	71.1	69
30-39	N	96	17
	%	22.2	27
40-49	N	26	2
	%	6.0	3
50+	N	3	1
	%	0.7	1
Missing	N	14	2
Chronic hypertension				0.485
Yes	N	46	5
	%	10.3	8
No	N	399	61
	%	89.7	92
Missing	N	1	0
Preeclampsia/gestational hypertension				0.292
Yes	N	48	4
	%	11.1	7
No	N	383	56
	%	88.9	93
Missing	N	15	6
Pregestational diabetes				0.558†
Yes	N	24	2
	%	5.4	3
No	N	421	64
	%	94.6	97
Missing	N	1	0
Gestational diabetes				0.758†
Yes	N	23	2
	%	5.2	3
No	N	423	64
	%	94.8	97
Insurance/method of payment				0.367
No Insurance	N	28	3
	%	6.3	5
Any public/private assistance	N	225	39
	%	50.7	60
Veterans Affairs/commercial health insurance/health maintenance organization (HMO)	N	191	23
	%	43.0	35
Missing	N	2	1
Maternal education				0.577
0-11 (none, primary, some secondary)	N	87	16
	%	20.7	26
12 (completed secondary)	N	117	18
	%	27.9	29
13+ (college)	N	216	28
	%	51.4	45
Missing	N	26	4
Tobacco use				0.268
None	N	343	51
	%	81.0	82
<10 cigarettes/day	N	37	8
	%	8.8	13
10+ cigarettes /day	N	43	3
	%	10.2	5
Missing	N	23	4
Lifetime drug use				0.309
Never used	N	294	39
	%	69.8	64
Ever used, without addiction	N	110	17
	%	26.1	28
Ever used, with addiction	N	17	5
	%	4.1	8
Missing	N	25	5

^*Column percentages are displayed;

^†Fisher’s Exact Test