Table 4. Number of actual genotypes and imputed variants in NCS.

	MAF = 0	0 < MAF ≤ 0.01%	0.01% < MAF ≤ 0.5%	0.5% < MAF ≤ 1%	1% < MAF ≤ 5%	MAF > 5%	Total
Genotyped by Affymetrix Axiom CHB 1 array	0	0	0	0	16,173 (3%)	511,811 (97%)	527,984
Imputed with 1000 G	1,642,218 (6%)	8,111,504 (28%)	10,354,147 (35%)	1,386,886 (5%)	2,299,157 (8%)	5,404,143 (19%)	29,198,055
Imputed with 1000 G + UK10K	4,791,282 (12%)	13,485,420 (33%)	12,236,827 (30%)	1,450,070 (4%)	2,464,567 (6%)	6,183,666 (15%)	40,611,832

The imputations were performed with 1000 G and 1000 G + UK10K reference panels.