Rh phenotypes among 33 829 blood donors in Terengganu, Malaysia
Ethnicity . | D-positive (n) . | Serologic D-negative (n) by Rh phenotype∗ . | . | Total . | |||||
---|---|---|---|---|---|---|---|---|---|
ccee . | Ccee . | CCee . | CcEe . | ccEe . | Subtotal . | n . | % . | ||
Malay | 31 969 | 105 | 42 | 3 | 2 | 4 | 156 | 32 125 | 95 |
Chinese | 1011 | 2 | 4 | 0 | 0 | 1 | 7 | 1018 | 3 |
Indian | 287 | 14 | 1 | 0 | 0 | 0 | 15 | 302 | 1 |
Others† | 383 | 1 | 0 | 0 | 0 | 0 | 1 | 384 | 1 |
Total | 33 650 | 122 | 47 | 3 | 2 | 5 | 179 | 33 829 | 100 |
Ethnicity . | D-positive (n) . | Serologic D-negative (n) by Rh phenotype∗ . | . | Total . | |||||
---|---|---|---|---|---|---|---|---|---|
ccee . | Ccee . | CCee . | CcEe . | ccEe . | Subtotal . | n . | % . | ||
Malay | 31 969 | 105 | 42 | 3 | 2 | 4 | 156 | 32 125 | 95 |
Chinese | 1011 | 2 | 4 | 0 | 0 | 1 | 7 | 1018 | 3 |
Indian | 287 | 14 | 1 | 0 | 0 | 0 | 15 | 302 | 1 |
Others† | 383 | 1 | 0 | 0 | 0 | 0 | 1 | 384 | 1 |
Total | 33 650 | 122 | 47 | 3 | 2 | 5 | 179 | 33 829 | 100 |
The data were collected from clinical records between January 2020 and July 2024.
The prevalence of D-negative donors was 0.49% in Malay (95% CI, 0.41-0.57, Poisson distribution), 0.69% in Chinese (95% CI, 0.32-1.35), and 4.97% in Indian (95% CI, 2.68-7.87).
Includes ethnicities such as Iban, Kadazan, and Arab of minor population sizes in Malaysia.