Table 1.

Multivariate analysis of HLA class I alleles associated with seroconversion

Allele	Cox regression result
	P valuea	Exp(B)b	95% CIc for Exp(B)
			Lower	Upper
Protective
A*01	0.031	1.731	1.052	2.849
C*06:02	0.015	1.679	1.105	2.551
C*07:01	0.042	1.520	1.015	2.277
Susceptible
A*23:01	0.010	0.551	0.351	0.865
B*07:02	0.011	0.483	0.276	0.846
B*42:01	0.015	0.593	0.389	0.905

^aSignificances are indicated.

^bExp(B), Exponent of B, hazard ratio.

^c95% CI, confidence interval.