Table 2. Total CNV burden in each cohort for crystallized-type intelligence (g_c).

		All CNVs		Deletions		Duplications
Cohort	Sample size	Load	Rate	Load	Rate	Rate	Load
ABC1936	412	12	0.029	2	0.005	10	0.024
LBC1921	492	24	0.049	8	0.016	16	0.033
LBC1936	887	47	0.053	15	0.017	32	0.036
Manchester	723	44	0.061	12	0.017	32	0.044
Newcastle	696	40	0.058	4	0.006	36	0.052
Total N	3210	167	0.052	41	0.013	126	0.039

Total N represents the number of individuals with g_c phenotypes, and high quality genetic data used to call CNVs. Load is the total number of CNVs counted in each cohort, called by both PennCNV and QuantiSNP, that passed quality control criteria, namely longer that 500 kb, and present at a frequency of 1% or less within each cohort, and Rate is the average number of such CNVs per individual within each cohort, with totals for All CNVs called, and separated into Deletions and Duplications.