Table 1

Frequency of the 3120+1G→A mutation in healthy black Africans

ChiefdomNo of subjectsNo of carriersCarrier frequency
Southern Africa1-150 728 8 1 in 91
 Nguni15700
  Zulu5700
  Xhosa5200
  Ndebele2300
  Swazi2500
 Sotho/Tswana37261 in 62
  Pedi/Northern Sotho15221 in 76
  Southern Sotho10041 in 25
  Tswana12000
 Tsonga7611 in 76
  Tsonga5311 in 53
  Shangaan2300
 Venda4511 in 45
 Random blacks1-151 7800
Central Africa 315 1 1 in 315
 Central African Republic21800
  Pygmies8300
  Ubangian speakers13500
 Zambia9711 in 97
West Africa 109 0 0 in 109
Total 1152 9 1 in 128
  • 1-150 All the southern Africans were south eastern Bantu speakers.

  • 1-151 Unknown chiefdom.