Table 3.

Multivariable regression models for IgG and neutralising antibody positivity after vaccination according to HIV status and CD4 cell counts

		aRR (95% CI)	p value
IgG positivity
HIV-positive, CD4 count <500 cells per μL		1 (ref)	..
HIV-positive, CD4 count ≥500 cells per μL		1·15 (1·02–1·30)	0·026
HIV-negative		1·17 (1·04–1·32)	0·010
Female sex		1·01 (0·96–1·06)	0·75
Age
	<40 years	1 (ref)	..
	40–49 years	1·02 (0·96–1·07)	0·53
	50–59 years	1·00 (0·94–1·06)	0·98
	>60 years	0·98 (0·91–1·04)	0·47
Neutralising antibody positivity
HIV-positive, CD4 count <500 cells per μL		1 (ref)	..
HIV-positive, CD4 count ≥500 cells per μL		1·29 (1·03–1·63)	0·027
HIV-negative		1·38 (1·12–1·72)	0·0032
Female sex		1·03 (0·94–1·14)	0·50
Age
	<40 years	1 (ref)	..
	40–49 years	1·01 (0·90–1·14)	0·83
	50–59 years	0·96 (0·85–1·09)	0·53
	>60 years	0·88 (0·76–1·01)	0·076

aRR=adjusted risk ratio.