Table 4.

The observed and expected numbers of homozygotes for individuals of different age classes for HLA-A and HLA-B and the ratio of observed to expected (O/E) for each age group

Locus	Age class	Observed	Expected	O/E
HLA-A	0–4	30	40.00	0.750
	5–9	35	47.25	0.741
	10–14	26	32.75	0.794
	>14	23	35.50	0.648
HLA-B	0–4	28	38.75	0.723
	5–9	33	41.50	0.795
	10–14	23	27.75	0.829
	>14	26	36.75	0.707