| Abdel Halim Salem et al. [33] | 2009 | Bahraini | Asian | 304 | HIV −ve | 304 | 15 | 1 | ||||||
| Yudin, N., et al. [34] | 1998 | Russian | Caucasians | 531 | GP | 531 | 59 | 12 | ||||||
| Grigory S. Ryabov., et al. [35] | 2004 | Russian | Caucasians | 171 | GP | 171 | 31 | 0 | ||||||
| Grace C. John, et al. [36] | 2001 | Kenya | Africans | 276 | HIV +ve | 276 | 1 | 0 | ||||||
| Sidoti, A., et al. [37] | 2005 | Sicilian | Other | 1015 | HIV +ve & −ve | 114 | 901 | 5 | 70 | 0 | 5 | |||
| Mangano A,. et al. [38] | 2001 | Amerindian | Other | 42 | GP | 42 | 1 | 1 | ||||||
| Torimiro, J N., et al. [39] | 2007 | Cameroon | Africans | 1390 | GP | 1390 | 0 | 0 | ||||||
| Al-Jaberi, S A,. et al. [40] | 2013 | Emiratis | Asian | 253 | GP | 253 | 0 | 0 | ||||||
| Al-Jaberi, S A,. et al. [40] | 2013 | Tunisians | Africans | 150 | GP | 150 | 0 | 0 | ||||||
| Kalev, I., [41] | 2000 | Estonians | Caucasians | 504 | GP | 504 | 117 | 16 |