Orish Verner, Amegan Aho Kokou, Ofori-Amoah Jones, Osei-Yobah James, Jamfaru Ibrahim, Afeke Innocent, Mac-Ankrah Lennox, Adzaku Festus
Department of Microbiology and Immunology, School of Medicine, University of Health and Allied Sciences, Ho Volta Region, Ghana, West Africa.
Department of Paediatrics, Schoolof Medicine, University of Health and Allied Sciences, Ho, Ghana.
Ethiop J Health Sci. 2018 Nov;28(6):749-758. doi: 10.4314/ejhs.v28i6.10.
This study aimed to evaluate the association between asymptomatic Plasmodium falciparum infection and poor intellectual development in primary school children in the Volta Region of Ghana.
This was a cross-sectional study conducted among children from 5 primary schools in 3 districts in the Volta region of Ghana. Questionnaires were administered, and blood samples collected for malaria investigation using Rapid diagnostic test (RDT) and microscopy. School performance was used to assess intellectual development in the children. Arithmetic was the subject of choice for the standardized test. Pearson chi square test was used to evaluate the association between Plasmodium falciparum and poor school performance. Multivariate analysis was used to identify factors independently associated with risk of poor school performance.
Out of 550 children, 305(55.45%) tested positive for malaria with RDT and 249(45.27%) positive with microscopy. Children from the Evangelical Presbyterian (EP) primary school in Afegame had the highest prevalence of Plasmodium falciparum infection with both RDT (92, 74.80%) and microscopy (73, 59.35%). Two hundred and fifteen students (39.09%) failed the arithmetic school test. EP primary school in Afegame recorded the highest frequency of poor school performance among the children (53.66%). School performance was significantly associated with RDT malaria diagnosis with failure rate higher among children who were RDT positive (135, 62.79%, p=0.005). Lower mean scores were seen in children with positive RDT result (47.35, [SD 30.85], p=0.021). Plasmodium falciparum infection (RDT) was independently associated with increased risk of poor school performance (AOR, 1.92, p=0.003).
An urgent scale-up of malaria control program targeting school-going children in this region is needed to mitigate the possible negative impact of Plasmodium falciparum infection on their intellectual development.
本研究旨在评估加纳沃尔特地区小学儿童无症状恶性疟原虫感染与智力发育不良之间的关联。
这是一项对加纳沃尔特地区3个区的5所小学的儿童进行的横断面研究。发放问卷,并采集血样,使用快速诊断测试(RDT)和显微镜检查进行疟疾调查。学校成绩用于评估儿童的智力发育。算术是标准化测试所选用的科目。采用Pearson卡方检验评估恶性疟原虫与学业成绩不佳之间的关联。多变量分析用于确定与学业成绩不佳风险独立相关的因素。
在550名儿童中,305名(55.45%)RDT检测疟疾呈阳性,249名(45.27%)显微镜检查呈阳性。阿费加梅的福音长老会(EP)小学的儿童恶性疟原虫感染率最高,RDT检测(92名,74.80%)和显微镜检查(73名,59.35%)均是如此。215名学生(39.09%)算术学校测试不及格。阿费加梅的EP小学儿童学业成绩不佳的发生率最高(53.66%)。学校成绩与RDT疟疾诊断显著相关,RDT呈阳性的儿童不及格率更高(135名,62.79%,p=0.005)。RDT结果呈阳性的儿童平均分数较低(47.35,[标准差30.85],p=0.021)。恶性疟原虫感染(RDT)与学业成绩不佳风险增加独立相关(调整后比值比,1.92,p=0.003)。
需要紧急扩大该地区针对在校儿童的疟疾控制项目规模,以减轻恶性疟原虫感染对其智力发育可能产生的负面影响。