Table 1. Number of persons included in iPSYCHs population-based sample of the Danish population born 1981–2005.

			Number of persons
Group membershipa	ICD10 diagnosesb	Follow-up period	Initial Sample	Blood spots available in Biobank and sent to Broad	Passed Sample QC
Schizophreniac	F20	2009–2012	3540	2830	2738
Bipolar disorder	F30–F31	1994–2012	1928	1488	1452
Affective disorder	F30–F39	1994–2012	26 380	23 532	22 809
Autism	F84.0, F84.1, F84.5, F84.8 or F84.9	1994–2012	16 146	15 418	14 812
ADHD	F90.0	1994–2012	18 726	17 835	17 249
Any case	All ICD codes listed above		57 377	52 867	51 101
Population-based cohort	Random sampling, i.e., disregarding any diagnostic information		30 000	28 650	27 605
Total number of persons			86 189	80 422	77 639

Abbreviations: ADHD, attention-deficit/hyperactivity disorder; ICD-10, International Classification of Diseases, 10th revision; iPSYCH, Integrative Psychiatric Research; QC, quality control.

^aGroups are not mutually exclusive.

^bInitial ICD10 diagnosis used to select case groups. Identification was performed through linkage to the Danish Psychiatric Central Research Register. At the time of linkage, the register contained all contacts up until 31/12/2012.

^cInclude all persons first diagnosed with schizophrenia during the period from 1 January 2009 to 31 December 2012 and persons first diagnosed with schizophrenia before 1 January 2009 that were not already genotyped (N=923). A total of 1887 persons first diagnosed with schizophrenia before 1 January 2009 were previously genotyped (see Supplementary Text 1).