Frequency of ABO and RH blood groups in major ethnic groups and casts of Pakistan

ABSTRACT

To find out the frequency of ABO and RhD phenotypes in different ethnic groups and casts of Pakistan. Design: cross sectional descriptive study. Place and duration of Study Combined Military Hospital Attock Punjab Pakistan from 1St Jan 2003 to 31 11 Dec 2003. Material and All healthy young adults reporting for recruitment in Armed Forces. Cast and sub cast were recorded. ABO grouping and Rhesus typing was done by slide method. Eight thousand three hundred seventy five young adults were screened. ABO blood group distribution in Arains was A 25.6%, B 40.5%, AB 9.2%, O 24.7%. Awans A 22%, B 31.7%, AB 9.9%, O 36.5%. Rajputs A 23%, B 33.2%, AB 8.8%, O 35.1%. Misc Punjabi sub casts A 23.6%, B 33.2%, AB 7.5%, O 35.7%. Balochs A 23.3%, B 27.9%, AB 7.8%, O 40.9%. Sindhis A 24.9%, B 31.8%, AB 6.9%, O 36.5%. Kashmiris A 23.7%, B 32.5%, AB 10.2%, O 33.6%. Pathans A 24.3%, B 31.4%, AB 8.9%, O 35.4% Rh-D negative [n=749] blood group in Araeens 8.3%, Awans 10.4%, Rajputs 8.5%, Misc Punjabi sub casts 8.8%, Balochs 7.8%, Sindhis 8.7%, Kashmiris 10.9% and Pathans 7.7%. There is no statistically significant difference of ABO and Rh-D distribution among various ethnic groups, O is the most common blood group except in Arains where B is the most common and O is less common