Acute maternal stress in pregnancy and schizophrenia in offspring: A cohort prospective study

BMC Psychiatry

Table 3 Numbers of cases, relative risks (RR) and 95% confidence limits (CL) for other psychiatric conditions, by standard month of birth and sex.

Estimated gestational month in June 1967	Date of birth	Total, including unknown sex			Males			Females
		Cases	RR¹	95% CL²	Cases	RR	95% CL¹	Cases	RR	95% CL¹
1	Feb 1968	3	0.73	0.23–2.34	3	1.11	0.34–3.64	0	-	-
2	Jan 1968	3	0.60	0.19–1.92	2	0.61	0.15–2.52	1	0.57	0.08–4.25
3	Dec 1967	9	** 2.51	1.22–5.17	4	1.82	0.63–5.24	5	*** 3.55	1.31–9.65
4	Nov 1967	1	0.22	0.03–1.61	0	-	-	1	0.51	0.07–3.77
5	Oct 1967	4	1.02	0.37–2.87	1	0.46	0.06–3.39	3	1.76	0.52–5.93
6	Sept 1967	3	0.90	0.28–2.92	1	0.63	0.09–4.71	2	1.14	0.27–4.87
7	Aug 1967	6	1.56	0.67–3.65	3	1.20	0.37–3.91	3	2.25	0.66–7.69
8	Jul 1967	5	1.04	0.42–2.60	4	1.81	0.64–5.13	1	0.38	0.05–2.79
9	Jun 1967	10	* 1.97	1.01–3.85	6	1.89	0.80–4.46	4	2.11	0.73–6.10
Comparison group (all others)	1964–76	633	1	reference	363	1	reference	270	1	reference

1. Adjusted for paternal age (continuous), maternal age (30–34, 35+ versus all others), low social class (father's occupation group 5,6 versus 1–4), years married and month of birth. 2. Additionally adjusted for sex. * p < .05; **p < .02 *** p < .003.

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