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Research: Performance evaluation of malaria microscopists working at rechecking laboratories in Ethiopia

June 11, 2017 - 20:51 -- MalariaWorld Journal
Abnet Abebe, Meseret Belayneh, Habtamu Asrat, Wondwossen Kassa, Andargachew Gashu, Adino Desale, Getnet Hailu, Tesfaye Mekonnen, Feven Girmachew, Achamyeleh Mulugeta, Ebise Abose, Dereje Yenealem, Abeba G Tsadik, Adisu Kebede, Gonfa Ayana, Kassu Desta
Article type: 
A cross-sectional study was conducted to assess the performance of 107 malaria microscopists working at 23 malaria rechecking laboratories in Ethiopia. A set of 12 blood film slides was distributed to each microscopist. Data was collected and exported to SPSS version 20 for analysis. Chi-square, sensitivity, specificity, percent agreement, and kappa scores were calculated to assess performance in detecting and identification of Plasmodium species. The mean age of the participants was 30 ± 5 yrs and most of them (54; 50.5%) were working at regional reference laboratories. Overall, the sensitivity of participants in detecting and identifying malaria parasite species was 96.8% and 56.7%, respectively. The overall agreement on detection and identification of malaria species was 96.8% (Kappa = 0.9) and 64.8% (Kappa = 0.33), respectively. The least accurately identified malaria parasite species was P. malariae (3/107; 2.8%) followed by P. ovale (35/107; 32.7%). Participants working at hospital laboratories had the highest percentage (72.3 %, Kappa=0.51) of accurate species identification. Study participants that had participated in malaria microscopy and quality assurance trainings were significantly better at quantifying parasite densities (P<0.001). The accuracy of parasite identification and quantification differed strongly between participants and expert microscopists. Therefore, regular competency assessment and training for malaria microscopists should be mandatory to assure proper diagnosis and management of malaria in Ethiopia. 

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Mustafa Hassan Ahmed's picture
Submitted by Mustafa Hassan Ahmed on
good article

Mustafa Hassan Ahmed
Parasitologist &Medical Entomologist
BS.c,MS,c Medical Laboratory Science

Submitted by Abnet A. (not verified) on
Yes you are right, it was done through out the country with great effort. Malaria is the main problem in Africa.So it is better to work together as Africa.