Table 4.

HTLV-I provirus load associated with HLA-DRB1^*0101 in the presence or absence of HLA-A^*02

	HAM/TSP			HCs
	Median proviral load	No. of subjects	P	Median proviral load	No. of subjects	P
DRB1*0101+	331.1	34	0.024	49.0	20	0.33
DRB1*0101−	602.6	161		34.7	163
A*02− DRB1+	338.8	27	0.03	109.6	10	0.22
A*02− DRB1−	631.0	107		41.7	83
A*02+ DRB1+	331.1	7	0.41	21.9	10	0.81
A*02+ DRB1−	524.8	54		21.9	80

A significant reduction in provirus load is observed in the HAM/TSP patients, but not in the A*02⁺ patients or in the HCs. 

Proviral copy reported as number per 10⁴ PBMC. P level reported using two-tailed Mann–Whitney U test.