Conference abstract
Data analysis report of the external evaluation of microscopy quality and rapid malaria diagnostic test in Mozambique, 2011- 2016
Pan African Medical Journal - Conference Proceedings. 2017:3(63).25
Oct 2017.
doi: 10.11604/pamj-cp.2017.3.63.183
Archived on: 25 Oct 2017
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Keywords: Malaria, Mozambique, external quality assessment, malaria diagnosis
Oral presentation
Data analysis report of the external evaluation of microscopy quality and rapid malaria diagnostic test in Mozambique, 2011- 2016
Assuate Abacar1,&, Gelane Salvador1, Crizolgo,Taibo Cátia Gudo1, Eduardo Samo1
1National Institute of Health, Maputo, Mozambique
&Corresponding author
Assuate Abacar, National Institute of Health, Maputo, Mozambique
Introduction: malaria remains one of the major public health challenges in Mozambique. Laboratory diagnosis of the disease is done predominantly through rapid test (RT) and microscopy. In 2011, the National Institute of Health introduced the External Quality Assessment of Malaria Diagnosis to ensure that the results of malaria testing, done through RT and by microscopy, are reliable. The objective of this study was to evaluate the performance of the laboratories participating in the proficiency testing for malaria microscopy and RT from 2011 to 2016.
Methods: a retrospective descriptive study of data from the National Malaria Reference Laboratory was variables assessed included laboratories site, year and laboratories with good or poor performance. The results were analyzed through the statistical program SPSS version 20.
Results: between 2011 and 2016, among 331 rapid tests, 130 (39.3%) were false results. Of the 130 false results, 69 (53.1%) were false positives and 61 (46.9%) were false negatives. The laboratories of Maputo City had the highest percent of false negatives (24.6%). Tete Province had highest percent of false positives (5.8%) of 69. During the same period, of the total 397 microscopy evaluations performed, 27 (6.8%) obtained results with a concordance equal to 100%, 249 (62.7%) obtained acceptable results greater than or equal to 50%, and in 121 (30.5%) the final results were discordant or not acceptable.
Conclusion: the quality of malaria testing in Mozambique based on both microscopy and RT is below the desired quality. It is recommended that efforts be made to improve the quality of malaria testing by providing refresher training, periodic monitoring for all testing sites, and monitoring of poorly performing testing sites.
