TABLE 2.

Allele and genotype frequency of ααα^anti3.7 in normal subjects in this study and other populations

Population	Number of chromosomes studied	Allele frequency of αααanti3.7	Genotype frequency of αααanti3.7 (%)	References
Normal subjects
Mexican	84	0.01	2.4	[20]
Togolese	342	0.011	2.3	[20]
Kenyan	114	0.008	1.6	[20]
South African blacks	306	0.01	1.96	[20]
Cypriote	990	0.01	2	[20]
Namibian	202	0.01	1.98	[20]
Portuguese	200	0.020	4	[20]
Indian	1856	0.004	0.75	[21]
Indian	536	0.011	2.2	[22]
Indian	2550	0.02	4	[23]
North Indian	416	0.017	3.36	[24]
Chinese	500	0.008	1.6	[20]
Southern Chinese	2338	0.0047	0.94	[25]
Chinese	1020	0.0098	1.96	[22]
Malay	1014	0.003	0.59	[22]
Thai	430	0.007	1.39	[26]
North Morocco	3316	0.0006	0.12	[27]
Iranian	794	0.01	2	[28]
Our study	4000	0.0045	0.9