The activity of red blood cell Glucose 6-phosphate dehydrogenase (G6PD)
in one hundred and twenty six healthy male individuals who are
Nigerians residing in Jos was evaluated. The enzyme activity was
determined quantitatively by spectrophotometer assay method. The
activity of red cell G6PD enzyme was subnormal in 20% of the population
studied. This agrees with previous report of the prevalence of G6PD
deficiency in Nigerian males from the Western region of the country
which is between 20 and 26%. The proportion of Nigerian males with
subnormal G6PD activity is relatively constant irrespective of their
geographical location