The association of Emergency Department presentations in pregnancy with hospital admissions for postnatal depression (PND): a cohort study based on linked population data

Table 1 Primiparous women’s characteristic and ED presentation in pregnancy in NSW, 2005–2010

Indicator	Value	Woman	ED presentations in pregnancy	Rate	AOR	95%CI
Maternal age*	<20	10601	4142	39.07	2.11	2.02	2.22
	20–24	27718	8693	31.36	1.66	1.60	1.72
	25–29	46949	9095	19.37	1.00
	30–34	44489	6439	14.47	0.77	0.74	0.80
	35–39	20117	2715	13.50	0.72	0.68	0.75
	40–44	4150	635	15.30	0.82	0.75	0.90
	45+	273	40	14.65	0.76	0.54	1.07
	Total	154297^a	31759	20.58
Women’s country of birth*	Australia	101122	22805	22.55	1.00
	Others countries	53206	8959	16.84	0.87	0.84	0.90
	Total	154328	31764	20.58
Remoteness*	Major cities	108118	19770	18.29	1.00
	Inner regional	32862	9061	27.57	1.31	1.26	1.35
	Out regional and remote	10763	2549	23.68	0.80	0.76	0.84
	Total	151743^b	31380	20.68
Smoking during pregnancy*	No	138800	26526	19.11	1.00
	Yes	14963	5149	34.41	1.49	1.43	1.55
	Total	153763^c	31675	20.60
Index of Relative SE Disadvantage Quintile*	Least disadvantaged	36071	4571	12.67	1.00
	2	31597	5846	18.50	1.31	1.26	1.37
	3	28958	6432	22.21	1.44	1.38	1.50
	4	26358	6823	25.89	1.58	1.51	1.65
	Most disadvantaged	28759	7708	26.80	1.83	1.75	1.91
	Total	151743^d	31380	20.68
Maternal diabetes mellitus*	No	153510	31490	20.51	1.00
	Yes	818	274	33.50	2.02	1.74	2.35
	Total	154328	31764	20.58
Gestational diabetes*	No	146549	30167	20.58	1.00
	Yes	7779	1597	20.53	1.19	1.12	1.26
	Total	154328	31764	20.58
Maternal hypertension*	No	153091	31475	20.56	1.00
	Yes	1237	289	23.36	1.22	1.07	1.40
	Total	154328	31764	20.58

ED Emergency Department, SE socio-economic, AOR adjusted odds ratio. The adjusted factors include all indicators in Table 1
*Significantly associated with ED presentation during pregnancy by logistic regression analysis (p < .05)
^a31 missing data, ^b2585 missing data, ^c565 missing data, ^d2585 missing data, see Methods

ISSN: 1471-227X