									CCR5 Heterozygous			CCR5 Homozygous
Author	Yr	Population Genotyped	Study Category	Sample Size	Case Group	HIV +ve	HIV −ve	GP	HIV+ Wt/Δ32	HIV− Wt/Δ32	GP Wt/Δ32	HIV+ Δ32/Δ32	HIV− 32/Δ32	GP Δ32/Δ32
Martison et al. [6]	1997	Europeans	Caucasians	788	GP			788			134			7
Martison et al. [6]	1997	Africans	Africans	598	GP			598			1			0
Martison et al. [6]	1997	Asian	Asians	837	GP			837			13			2
Oh, D.-Y et al. [10]	2008	German	Caucasians	1200	HIV +ve	595	352		115	75		1	1
Oh, D.-Y et al. [10]	2008	Africans	Africans	1200	HIV +ve	35	25		1	1		0	0
Al-Mahruqi, S et al. [11]	2013	Omani	Asian	115	GP			115						Rare
Trecarichi, E. M et al. [12]	2006	Italians	Caucasians	150	ESN & HIV +ve	120	30 ESN	120	9	6	12	0	0	0
Smoljanović, M., et al. [13]	2006	Dalmatia, Croatia	Caucasians	200	GP			200			13			1