Table 2.

Characteristics of pregnant women with suicidal behavior-related hospitalizations, United States, 2006-2012

Characteristics	2006		2007		2008		2009		2010		2011		2012		P valuea
	N	%	N	%	N	%	N	%	N	%	N	%	N	%
Suicidal behavior-related hospitalizations (n)	3609		4142		4951		5214		5873		5778		5940
Age, mean±SE, year	25.8±0.3		25.5±0.2		25.4±0.2		26.1±0.2		25.7±0.2		26.2±0.2		25.8±0.2		0.96
Age categories, year
12-18	458	12.7	425	10.3	495	10.0	465	8.9	638	10.9	496	8.6	560	9.4	0.04
19-24	1244	34.5	1619	39.1	1868	37.7	1982	38.0	2354	40.1	2073	35.9	2235	37.6
25-29	851	23.6	1048	25.3	1364	27.6	1242	23.8	1217	20.7	1524	26.4	1460	24.6
30-34	653	18.1	662	16.0	833	16.8	892	17.1	1036	17.6	1098	19.0	1205	20.3
35-39	275	7.6	317	7.6	311	6.3	511	9.8	455	7.8	390	6.8	350	5.9
40-55	129	3.6	72	1.7	80	1.6	121	2.3	173	2.9	198	3.4	130	2.2
Race
White	1466	40.6	1660	40.1	2056	41.5	1991	38.2	2466	42.0	2489	43.1	2685	45.2	<0.0001
Black	649	18.0	638	15.4	915	18.5	1088	20.9	1546	26.3	1362	23.6	1570	26.4
Hispanic	428	11.9	482	11.6	450	9.1	733	14.1	680	11.6	651	11.3	825	13.9
Asian or Pacific Islander	24	0.7	66	1.6	35	0.7	59	1.1	131	2.2	139	2.4	105	1.8
Native American	52	1.4	19	0.5	38	0.8	23	0.4	41	0.7	59	1.0	60	1.0
Other	132	3.7	173	4.2	120	2.4	124	2.4	203	3.5	291	5.0	290	4.9
Missing	858	23.8	1104	26.7	1339	27.0	1196	22.9	808	13.8	786	13.6	405	6.8
Median household income quartiles for patient zip code
Quartile 1 (poorest)	1208	33.5	1339	32.3	1711	34.6	2090	40.1	2274	38.7	2199	38.1	2325	39.1	0.29
Quartile 2	949	26.3	1108	26.7	1396	28.2	1215	23.3	1558	26.5	1547	26.8	1485	25.0
Quartile 3	728	20.2	837	20.2	972	19.6	997	19.1	1110	18.9	1170	20.3	1200	20.2
Quartile 4 (wealthiest)	626	17.3	757	18.3	774	15.6	728	14.0	755	12.9	744	12.9	830	14.0
Missing	98	2.7	101	2.5	98	2.0	184	3.5	176	3.0	118	2.0	100	1.7
Expected primary payer
Medicare	188	5.2	195	4.7	160	3.2	281	5.4	272	4.6	404	7.0	380	6.4	0.03
Medicaid	1878	52.0	2188	52.8	2715	54.8	3082	59.1	3543	60.3	3360	58.2	3555	59.8
Private insurance	928	25.7	1056	25.5	1362	27.5	1167	22.4	1318	22.4	1376	23.8	1365	23.0
Self-pay	388	10.8	460	11.1	415	8.4	427	8.2	371	6.3	353	6.1	370	6.2
Otherb	227	6.2	224	5.4	281	5.7	233	4.5	345	5.9	271	4.7	260	4.4
Missing	0	0	19	0.5	17	0.4	24	0.5	24	0.4	14	0.2	10	0.2
Length of stay, mean±SE, day	4.0±0.2		4.5±0.4		3.9±0.1		4.0±0.1		4.0±0.1		4.3±0.2		4.5±0.2		0.07
Total chargesc, mean±SE, dollar	12423±880		14052±1091		11999±588		14434±1154		14064±941		15522±953		16210±1082		0.007
With depression diagnoses	2513	69.6	2669	64.4	3196	64.5	3207	61.5	3775	64.3	3473	60.1	3650	61.4	0.001

Weighted column percentages may not total 100 because of rounding.

Abbreviations: SE, standard error

^aSignificance test was performed to compare the distributions between 2006 and 2012. P value was calculated using the Wald Chi-square test for categorical variables and the t-test for continuous variables.

^bOther includes no charges.

^cTotal charges were adjusted for inflation to reflect 2012 dollars.