Table 1

Number of students' grade point average, suicides and suicide rates per 100 000 person-years for the studied covariates

	Women					Men
	N	%	Grades	Suicides	Suicide rate	N	%	Grades	Suicides	Suicide rates
Total	436293	100.0	3.38	414	7.7	462049	100.0	3.09	1076	18.7
Parent's education
9 years	91256	20.9	3.11	90	7.7	97492	21.1	2.79	241	19.3
10–11 years	119997	27.5	3.21	125	8.5	126599	27.4	2.90	340	21.9
12 years	62001	14.2	3.42	62	8.0	66441	14.4	3.14	134	16.0
13 years or more	157312	36.1	3.66	122	6.3	165483	35.8	3.40	333	16.2
Missing	5727	1.3	3.21	15	28.4	6034	1.3	2.90	28	49.7
Mother's psychiatric diagnosis 1973–2006
No	421057	96.5	3.39	376	7.2	446330	96.6	3.10	1007	18.1
Yes	15236	3.5	3.11	38	20.7	15719	3.4	2.85	69	36.2
Father's psychiatric diagnosis 1973–2006
No	425987	97.6	3.39	393	7.4	451095	97.6	3.10	1023	18.2
Yes	10306	2.4	3.14	21	17.2	10954	2.4	2.86	53	40.1
Lone parental household
No	385765	88.4	3.41	334	7.0	409430	88.6	3.12	891	17.4
Yes	50528	11.6	3.15	80	13.0	52619	11.4	2.87	185	29.0
Received social welfare
No	363472	83.3	3.42	334	7.3	385853	83.5	3.14	842	17.2
Yes	72821	16.7	3.17	80	9.8	76196	16.5	2.87	234	27.3
Adopted
No	425141	97.4	3.39	390	7.4	453450	98.1	3.10	1029	18.2
Yes	11152	2.6	3.15	24	17.3	8599	1.9	2.87	47	44.3
Place of schooling
Small (rural municipalities)	145771	33.4	3.36	110	6.0	155493	33.7	3.04	386	19.7
Intermediate (>90 000 inhabitants)	161320	37.0	3.36	158	8.0	168989	36.6	3.08	370	17.9
Big city area (the 3 large city areas)	118783	27.2	3.43	118	7.8	124545	27.0	3.17	266	16.7
Missing	10419	2.4	3.73	28	26.2	13022	2.8	3.67	54	40.1