Onyalai at Rundu, Namibia 1981-1988: age, sex, morbidity, mortality and seasonal variation of 612 hospitalized patients

Hesseling P.B. (1990)


Of 51263 admissions to Rundu State Hospitala in Namibia between 1981 and 1988, 612 (1.19%) were diagnosed as onylai. The annual incidence varied between 0.96% and 1.66% of all admissions. The female to male ration was 3.2. The mean age at presentation was 24.8 years (range 6 months to 80 years) and the mean hospital stay (and duration of clinical bleeding) for the years 1981 and 1982 and 1985 to 1988 was 7.68 d (range 1-38 d). Although the highest number of cases occurred during the months March, April and May a statistically significant monthly variation was not found. The treatment policy of commencing intravenous fluid on admission and a blood transfusion whenever the haemoglobin dropped below 10 g/dl in patients with active bleeding was associated with a mortality rate of 2.78% compared to 9.8% in cases recorded up to 1981.

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