The Finnish psychiatric birth cohort consortium (PSYCOHORTS) – content, plans and perspectives

Figures & data

Table 1. Description and data sources linked with PSYCOHORTS.

Cohort	NFBC 1966	NFBC 1986	1981 FBC	FIPS^a	1987 FBC	1997 FBC	SSRI exposure cohort	SFBC
N	12,231	9479	6014	N cases = 160,320 N controls = 618,847	59,476	58,802	N exposed = 15,700 N unexposed = 49,000	14,946
% of men	51	52	51	54	51	51	51	51
Year of baseline	1966	1986	1981	1983–2011	1987	1997	1996–2010	2008–2010
Follow-up (contact with participants)	At 14, 31 and 46 years	At 8, 16 upcoming at 32 years	At age 8 at age 18 (only men)	N/A	N/A	N/A	N/A	Continuously, currently until 6 years
The Medical Birth Register (STAKES)	+ for the offspring	+ for the offspring	+ for the offspring	+	+	+	+	+
The Register of Congenital Malformations (STAKES)	–	–	–	+	–	–	+	–
The Maternity Cohort and the Prenatal Serology Laboratory	N/A	–	–	+	p	p	–	+
The Central Population Register	+	+	+	+	+	+	+	+
Child Health Clinics	+	+	+	+	–	–	–	+
National Agency for Education	+	+	–	p	+	+	–	+
Care register for Health Care (STAKES)	+	+	+	+	+	+	+	N/A
Social Insurance Institution register^b	+	+	+	p	+	+	+	+
The Legal register and police register	–	–	+	+	+	+	–	–
Ministry of Economic Affairs and Employment	–	–	–	–	+	p	–	–
Defence Forces	+	+	+	+	+	–	–	–
Center for Pensions (FCP)	+	+	N/A	–	+	+	–	N/A
Causes of death register (Statistics Finland)	+	+	+	+	+	+	+	+

^a Data vary by sub-study.

^b Include drug purchase, reimbursement of medicine expenses, and unemployment benefits.

FCP: Finnish Center for Pensions; STAKES: National Research and Development Center for Welfare and Health; +: yes (data available); –: no (data not available), N/A: non-applicable; p: planned.

Table 2. Characteristics of age of death from suicide and intentional self-harm in PSYCOHORTS.

Cohort	N	Mean	Median	IQR	Min	Max
NFBC 1966 cohort members	111	32.2	31.1	25.5–39.8	17.0	47.9
NFBC 1966 parents^a	237	52.9	52.4	44.1–61.8	26.6	88.9
NFBC 1986 cohort members	36	22.9	24.0	20.3–25.8	25.6	18.0
NFBC 1986 parents^a	153	43.7	45.0	37.0–49.5	24.8	67.9
FBC 1981 cohort members	26	23.2	23.1	19.8–26.6	15.3	31.4
FBC 1981 parents^a	96	45.1	45.9	37.9–52.1	22.9	69.3
FBC 1987 cohort members	169	22.5	22.4	19.9–25.2	14.1	26.8
FBC 1987 parents^a	702	42.7	42.9	36.6–48.8	20.4	69.3
FBC 1997 cohort members	15	16.3	16.2	15.9–17.3	11.4	18.6
FBC 1997 parents^a	367	39.4	38.9	33.6–45.1	20.5	63.3
FIPS cohort members	111	19.2	19.0	17.5–21.0	11.9	25.6
FIPS parents^a	1069	40.8	40.5	34.3–47.0	20.5	74.4

^a Parents of cohort members. IQR: interquartile range.

Table 3. Characteristics of age of death from alcohol-related diseases and accidental poisoning in PSYCOHORTS.

Cohort	N	Mean	Median	IQR	Min	Max
NFBC 1966 cohort members	54	42.3	43.0	39.1–46.4	28.4	49.2
NFBC 1966 parents^a	250	58.0	60.1	51.2–65.9	28.9	81.3
NFBC 1986 cohort members	2	30.0	28.0	27.0–29.0	27.0	29.0
NFBC 1986 parents^a	122	51.7	51.7	45.6–56.9	32.0	75.1
FBC 1981 cohort members	4	29.8	29.6	27.1–32.6	26.6	33.5
FBC 1981 parents^a	143	51.9	53.0	47.5–57.5	31.8	67.0
FBC 1987 cohort members	19	22.4	23.1	21.1–25.5	2.6	28.8
FBC 1987 parents^a	868	49.3	49.7	44.3–54.0	28.6	73.9
FBC 1997 cohort members	0	–	–	–	–	–
FBC 1997 parents^a	297	46.6	46.5	42.4–51.1	24.52	64.9
FIPS cohort members	9	20.2	21.4	20.5–23.6	2.7	26.2
FIPS parents^a	1072	47.5	47.5	42.2–52.8	23.3	77.0

^a Parents of cohort members. IQR: interquartile range.