Trend of Malaria Cases in Hana and Keyafer Health Centers, South Omo Zone, Southern Ethiopia

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Trend of Malaria Cases in Hana and Keyafer Health Centers, South Omo Zone, Southern Ethiopia Trends of Malaria Cases… Solomon E. et al. 277 ORIGINAL ARTICLE Trend of Malaria Cases in Hana and Keyafer Health Centers, South Omo Zone, Southern Ethiopia Solomon Ergete1, Solomon Sorsa2, Eskindir Loha3, Solomon Asnake3* OPEN ACCESS ABSTRACT Citation:Solomon Ergete, Solomon Sorsa, BACKGROUND: Data registered in health facilities about malaria EskindirLoha, Solomon Asnake. Trend of malaria cases in Hana and Keyafer Health are vital source of information regarding the trend and pattern of Centers, South Omo Zone, Southern the disease. Moreover the data also used to evaluate the impact of Ethiopia. Ethiop J Health Sci.2017;28(3):277. the intervention methods and to plan malaria control accordingly. doi:http://dx.doi.org/10.4314/ejhs.v28i3.5 The aim of this study was to assess the number of malaria cases in Received: October 11, 2017 the service providing health institutions of South Omo Zone, Accepted:October 13, 2017 Published: May 1, 2018 SNNPR, over a period of seven years, 2008-2014. Copyright: © 2018 Solomon Ergete, et al. METHODS: A retrospective review of routinely collected and This is an open access article distributed recorded data on malaria was conducted at Hana and Keyafer health under the terms of the Creative Commons Attribution License, which permits centers located in South OmoZone, during December-March/2014. unrestricted use, distribution, and RESULT: This retrospective study examined records of 54,160 reproduction in any medium, provided the original author and source are credited. presumptive and confirmed malaria cases registered over seven Funding:Hawassa University years (January 2008–December 2014). Among the registered, a total Competing Interests: The authors of 22,494 laboratory confirmed malaria cases were reported. The declare that this manuscript was approved by all authors in its formand that no mean annual prevalence of malaria was 3213, with total slide competing interest exists. positivity rate (SPR) of 41.53%. The seven years’overall trend of Affiliation and Correspondence: malaria occurrence in the study sites showed a fluctuating trend 1South Omo Education Office, Jinka, Ethiopia from 2008 to 20114.P. falciparum was the predominant species with 2College of Natural and no trend shift in seven years period. Plasmodium falciparum Computational Sciences, Hawassa University, Hawassa, Ethiopia accounted for 61.03% and Plasmodium vivax for 32.44%. Most of 3College of Medicine and Health the confirmed cases were males (63.26%) and most were above 15 sciences, HawassaUniversity, years old (70.7%). Rainfall at lag of one month was significantly Hawassa, Ethiopia *Email: [email protected] predicting number of cases at Hana Health center (P< 0.001), though it was found to be not significant in case of KeyaferHealth Center. CONCLUSION: The finding of the retrospective study revealed that malaria still remains as a public health problem in the study areas. The deadly species P. falciparium was most predominant, and the age group above 15 was more infected. Hence, malaria intervention methods should be scaled up in the study sites. KEYWORDS: Malaria, cases, health institution INTRODUCTION DOI: http://dx.doi.org/10.4314/ejhs.v28i3.5 278 Ethiop J Health Sci. Vol. 28, No. 3 May 2018 Malaria is a life-threatening infectious disease the study areaswas not determined. Hence, this caused by the protozoan parasite, Plasmodium study was intended to determine the last seven falciparum (P. falciparum), P. malariae, P. ovale, years’ (2008-2014)trend of malaria occurrence in P. vivax and P. knowlesi(1). Despite South Omo Zone, Southern Ethiopia. currentlyavailable interventions, malaria remains a major public health problem. There were MATERIALS AND METHODS estimated212 million cases of malaria and 429,000 The study areas:The study was conducted in Hana deaths worldwide in 2015(2). More than80% of the and Keyafer health centers found in cases and 90% of all deaths occur in sub-Saharan SalamagoandBenatsemay districts of South Africa, with 77% occurring in childrenunder five OmoZone. The two districts are situated at 5.320– years of age (3). Malaria also remains a major 6. 460 Northand 35. 890–36.450 East and 5.110 - global development challenge; inAfrica it accounts 5.700 North and 36.200–37.040 respectively. The for 40% of public health expenditure and 25% of districts are located about 42 km from the zonal the household income (4).Malaria is the leading capital, Jinka and 483 km from Hawassa, the cause of morbidity and mortality in Ethiopia; regional capital. The districts lie on an average approximately 75% oflandmass is endemic for altitude of 1500 meter above sea level and ranges malaria and about 68% of the total population from 500 to 2500 masl (13). Annual rainfall ranges living in areas at risk ofmalaria (5).Approximately, between 400-1600 mm, and the main rainy seasons 80% of the 736 districts in Ethiopia are considered are March, April and July while the light rainy malarious (6).According to the FMoH (7), seasons are August and September. The two approximately, 3.4 million cases of malaria (both districts have 3 health centers each and 18 and 31 laboratoryconfirmed and clinically diagnosed) health posts respectively. The total population size were reported. Among the four plasmodium species of Salamago was 33,066 of whom 16,717 were knownto cause malaria in Ethiopia, the two males and 16349 females, whereas that of epidemiologically important species are P. Benatsemay was 62,825 of which 31788 were falciparum and P. vivax comprising 60% and 40% males and 31037 females (14). Among the health respectively (7). As reported by the Ethiopia's centers in the zone, Hana from Salamago and FMoH (8), in 2009,malaria was the first cause of Keyafer from Benatsemay are the oldest and outpatient visits, health facility admissions and relatively better in health facility, health 29% inpatient deaths, accounting for 12% of professional staff and document keeping outpatient visits and 9.9% of admissions. In the techniques. Southern Nations,Nationalities and Peoples' Study design and study population:A health Region (SNNPR), about 65% of the population is facility based retrospective cross-sectional study living in malariaendemic areas, and malaria is the was conducted at Hana and Keyafer health primary cause of outpatient and inpatient centersbetween 2008 –2014. The study included all consultations andhospital deaths in the region records of individuals registered on log books from (9).Studies indicated that after the introduction of 2008 to 2014 and diagnosed for malaria both the current malaria control strategies, morbidity clinically and via blood film test. and mortality due to malaria are decreasing in the Sampling technique and procedures:The districts country, though malaria still remains a major health and health centers were selected purposively based problem (10). Analysis of data relevant to malaria on the high rates of malaria case burden relative to from healthcare centers and health facility records other districts in the zone. Data was collected from provides essential information needed to evaluate institutional registration books of the two health the national malaria control program and gives centers by health personnel on prepared format insight to the changing malaria situation, which sheets. Individual leveldata on malaria diagnosis intern guides modification of malaria control results, type of species, dates of diagnoses and program (11,12). The trend of malaria episode in available demographicdata were registered. DOI: http://dx.doi.org/10.4314/ejhs.v28i3.5 Trends of Malaria Cases… Solomon E. et al. 279 Moreover, using a questionnaire,malaria RESULTS intervention activities and other required information were collected from the respective Over seven years (January 2008–December 2014), health centers and districts health offices. The 54,160 presumptive and confirmed malaria cases meteorological data of the study areas (annual, wereexamined. Over two-third of the cases were monthly, maximum and minimum rain fall and from Hana health Center, and close to one-third of temperature) were collected from Regional the cases were from Keyafer. A total of 22,494 Meteorology Agency. laboratory confirmed malaria cases were reported, Data quality management:The study used and the mean annual prevalence of malaria was confirmed cases that were registered on the national 3213, with total slide positivity rate (SPR) of malaria registration book of the two health 41.53%. The seven years’ trend of malaria facilities. A one-day training was given for data occurrence showed a fluctuating trend. There was collectors on data extraction. irregularity on the number of malaria cases, with Data analysis:The data on malaria case records of the minimum (831) microscopically confirmed the study sites were transferred to Excel cases reported in 2009, and the maximum (5648) spreadsheet and checked for completeness. The confirmed cases were reported in 2012 (Figure data were exported and analyzed using SPSS 1).The prevalence had shown slight fall from 2008 statistical software version 20 for windows. For the to 2009. Then, from 2010 to 2012, it had shown a sake of comparison of burden of malaria in the two sharp rise, and peak malaria case was reported in set-ups, the total catchment population was used as 2012 after which the prevalence had shown a sharp a denominator to come up with the number of cases fall till 2014. Generally, as the finding indicated, no per 1000 population. Linear regression analysis significant reduction in laboratory confirmed was used to estimate the level of differences in the malaria cases was recorded during the seven years’ trends of malaria cases between the study areas and period. to determine the significance level among different Both P. falciparum and P. vivax were reported variables. Cross-correlations were done between each year, and both showed year-to-year increment malaria cases and meteorological factors; the till 2012 then fell down. In all considered years P. significant pick was observed at lag number of -1 falciparum was the predominant species with no for malaria cases and corresponding rainfall data.
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