scholarly journals Childhood hearing impairment and its associated factors in sub-Saharan Africa in the 21st century: A systematic review and meta-analysis

2020 ◽  
Vol 8 ◽  
pp. 205031212091924
Author(s):  
Assefa Desalew ◽  
Tilayie Feto Gelano ◽  
Agumasie Semahegn ◽  
Biftu Geda ◽  
Tilahun Ali

Background: Childhood hearing impairment is still a significant cause of disability in the 21st century in developing countries. Particularly, the burden is more severe in sub-Saharan Africa, where the majority of children with hearing problems is living. Thre are great variations and inconsistencies of available findings conducted in sub-Saharan Africa. Hence, the aim of this review was to determine the pooled prevalence of childhood hearing impairment and its associated factors in sub-Saharan Africa. Methods: Studies were searched from main databases (PubMed, CINAHL, and African Journals Online), Google Scholar, and other relevant sources using electronic and manual techniques. All observational studies, written in English and conducted among participants (aged less than 18 years) from 2000 to 2018, were eligible. Heterogeneity between included studies was assessed using I2, and publication bias was explored using visual inspection of the funnel plot. Statistical analysis was carried out to determine pooled prevalence using Stata version 14. In addition, subgroup analysis was carried out for the normality criteria of hearing thresholds and characteristics of the study populations. Results: The pooled prevalence of hearing impairment was 10% (95% confidence interval (CI): 9%–11%). The magnitude of hearing impairment varies with the normality criterion used. The most commonly used threshold was 25 and 30 dB hearing level. The prevalence of hearing impairment based on normality criterion (>20 dB, >25 dB, >30 dB, and >35 dB) were 17%, 19%, 2%, and 1%, respectively. While in the questionnaire-based evaluation, the prevalence was 6% (95% CI: 3%–9%). In addition, based on population characteristics, the prevalence of hearing impairment for school or community-based children was 6% (95% CI: 5%–7%) while the prevalence for children with comorbidities was 23% (95% CI: 15%–31%). Chronic suppurative otitis media, impacted cerumen, advanced stage of human immunodeficiency virus, tuberculosis infection, and age of the children were associated with hearing impairment in sub-Saharan Africa. Conclusion: Hearing impairment in children and adolescents in sub-Saharan Africa was high, and associated with preventable and treatable risk factors.

Author(s):  
Alemu Earsido Addila ◽  
Telake Azale Bisetegn ◽  
Yigzaw Kebede Gete ◽  
Mezgebu Yitayal Mengistu ◽  
Getnet Mihretie Beyene

Abstract Background Alcohol consumption during pregnancy represents a significant public health concern. It has several adverse health effects for both the mother and the developing fetus. This study aimed to estimate the pooled prevalence and the effect size of associated factors of alcohol consumption during pregnancy in Sub-Saharan Africa countries. Methods The results of the review were reported based on the Preferred Reporting Items for Systematic Review and Meta-Analysis statement (PRISMA) guideline and, it was registered in the Prospero database, number CRD42019127103. The available primary studies were collated from different databases: PubMed, CINAHL, Cochrane Library, PsycINFO, Google Scholar, African Journals Online and Centre for Addiction and Mental Health Library. The main search terms were [((alcohol consumption) OR (alcohol drinking) OR (alcohol use) OR (ethanol use) OR (alcohol exposure)) AND ((pregnant women) OR (pregnant mother) OR (during pregnancy)) AND (Sub-Saharan Africa)]. We used the Joanna Briggs Institute (JBI) for critical appraisal of studies. The random-effects model was computed to estimate the pooled prevalence. Heterogeneity between studies was checked using the I2 statistic and the Cochrane Q test. Results The review resulted in 963 original studies after searching various databases, and finally 37 studies in qualitative synthesis and 30 articles in the systematic review and meta-analysis were included. The overall summary estimate of the prevalence of alcohol consumption during pregnancy was found to be 20.83% (95% CI: 18.21, 23.46). The pooled estimate of meta-analysis showed that depression (OR: 1.572; 95% CI: 1.34, 1.845), partners’ alcohol use (OR: 1.32, 95% CI: 1.11, 1.57), knowledge on harmful effect of alcohol consumption (OR: 0.36, 95% CI: 0.29, 0.45) and, unplanned pregnancy (OR: 2.33, 95% CI: 1.17, 4.63) were statistically significant factors with alcohol consumption during pregnancy. Conclusions The result showed that there was high alcohol consumption during pregnancy in Sub- Saharan Africa. Alcohol consumption during pregnancy was associated with depression, partners’ alcohol use, unplanned pregnancy and knowledge of the harmful effects of alcohol consumption. Therefore, this will be a basis for public policy and resource allocation for prevention initiatives.


2022 ◽  
Vol 80 (1) ◽  
Author(s):  
Jemberu Nigussie ◽  
Bekahegn Girma ◽  
Alemayehu Molla ◽  
Moges Mareg ◽  
Esmelealem Mihretu

Abstract Background In the developing world, such as the sub-Saharan African region, HIV/AIDS has worsened the impact of under-nutrition in children. HIV infected children are highly vulnerable to under-nutrition. Therefore, the objective of this systematic review and meta-analysis was to estimate the pooled prevalence of under-nutrition, and the pooled effect sizes of associated factors among HIV-infected children in sub-Saharan Africa. Methods The primary studies for this review were retrieved from PubMed/ MEDLINE online, Science Direct, Hinari, web of science, CINHAL, EMBASE, WHO databases, Google, and Google Scholar databases. The articles selected for this meta-analysis were published between 2010 and 2020. The last search date was 18 October 2021. The data was extracted in Microsoft Excel format and exported to STATA Version 14.0. A random effect meta-analysis model was used. Heterogeneity was evaluated by the I2 test. The Egger weighted regression test was used to assess publication bias. Results We retrieved 847 records from these databases. Of which records, 813 were excluded due to different reasons and 34 studies were included in the final analysis. The pooled prevalence of stunting, underweight and wasting in HIV infected children was 46.7% (95% CI; 40.36–53.07, I2 = 98.7%, p < 0.01), 35.9% (95% CI; 30.79–41.02, I2 = 97.4% p < 0.01), and 23.0% (95% CI; 18.67–27.42, I2 = 96.9%, p < 0.01) respectively. The advanced WHO HIV/AIDS clinical staging (III&IV) [OR = 6.74 (95%: 1.747, 26.021), I2 = 94.7%] and household food insecurity were associated with stunting [OR = 5.92 (95% CI 3.9, 8.87), I2 = 55.7%]. Low family economic status [OR = 4.737 (95% CI: 2.605, 8.614), I2 = 31.2%] and increased feeding frequency [OR = 0.323 (95% CI: 0.172, 0.605), I2 = 69.8%] were significantly associated with under-weight. Anemia [OR = 2.860 (95% CI: 1.636, 5.000), I2 = 74.8%] and diarrhea in the previous month [OR = 4.117 (95% CI: 2.876, 5.894), I2 = 0.0%] were also associated with wasting among HIV infected children in sub-Saharan Africa. Conclusions The pooled prevalence of under-nutrition among HIV infected children was high. Nutritional assessment and interventions need great attention as a part of HIV care for HIV positive children. The implementation of policies and strategies established by national and international stakeholders in ART care centres should take a maximum emphasis on reducing under-nutrition among HIV infected children.


2020 ◽  
Author(s):  
Yonas Akalu ◽  
Yigizie Yeshaw ◽  
Getayeneh Antehunegn Tesema ◽  
Sofonyas Abebaw Tiruneh ◽  
Achamyeleh Birhanu Teshale ◽  
...  

Abstract Background Poor blood pressure control among people living with diabetes mellitus (DM) is one of the primary causes of cardiovascular complications and death in sub-Saharan Africa (SSA). However, there is paucity of evidence on the prevalence and associated factors of poor blood pressure control in SSA. Therefore, this review aimed to estimate the prevalence and its associated factors among people living with DM in SSA. Methods We systematically searched PubMed, African Journals online, Hinari, Google scholar and direct Google to access observational studies conducted in SSA. Microsoft excel spreadsheet was used to extract the data and then exported into STATA/MP version 16.0 for further analysis. Heterogeneity across studies was checked using Cochrane Q test statistic and I2 test and small study effect were checked using Funnel plot symmetry and Egger’s statistical test at 5% significant level. A random-effects model was used to estimates the pooled prevalence of poor blood pressure control with a 95% confidence interval (CI). Results Of the 1,043 articles retrieved, 21 articles with an overall sample size of 6308 were eligible for the meta-analysis. After performing random-effects model, the pooled prevalence of poor blood pressure control was 69.8% (95% CI: 63.43, 76.25%). Poor adherence to antihypertensive treatment (OR = 1.7; 95% CI: 1.03–2.80, I2 = 0.0%, p = 0.531) and overweight (OR = 2.4, 95% CI: 1.57–3.68, I2 = 0.00%, p = 0.47) were significantly associated with poor blood pressure control. Conclusions Only one third of diabetic patients in SSA had achieved target blood pressure. Hence, there is an urgent need for initiatives to improve and control hypertension, and preventive measures should concentrate on modifiable risk factors. Systematic Review registrations: The review protocol has been registered in PROSPERO with protocol number of CRD42020187901.


2020 ◽  
Author(s):  
Jemberu Nigussie ◽  
Bekahegn Girma: ◽  
Alemayehu Molla ◽  
Moges Mareg

Abstract Background: In developing world including sub-Saharan Africa, HIV/AIDS has worsened the impact of under-nutrition in children. HIV infected children are highly vulnerable to malnutrition. Even though under-nutrition screening and intervention are incorporated into the care plan of HIV infected children, it is continued as a major problem for HIV infected children in Africa. Hence, the main aim of this systematic review and meta-analysis was to estimate the pooled prevalence of under-nutrition and associated factors among children infected with HIV.Methods: Primary studies were retrieved from PubMed/ MEDLINE online, Science direct, and Hinari databases. We found a total of 1847 records from these databases. After removing papers my using different exclusion criteria, 26 studies that report the prevalence of under-nutrition were included. We used a standardized data extraction format prepared in Microsoft Excel. STATA- version 14 statistical software was used for analysis. Heterogeneity was evaluated through I2 test. A random-effects meta-analysis model was used to estimate the pooled prevalence of under-nutrition and its associated factors. The summary estimates were also presented using Forest plots and tables.Results: The pooled prevalence of stunting, underweight, and wasting in HIV infected children were 51.4% (95% CI: 46.3, 56.4), 39.0% (95% CI: 33.7, 44.3), and 24.5% (95% CI: 19.2, 29.8) respectively. Household insecurity was associated with stunting [OR= 5.50 (95% CI 3.36, 8.98]. Low family economic status [OR= 5.25 (95% CI: 2.52, 10.92)])], feeding frequency [OR= 0.32 (95% CI 0.172, 0.605)] and caretakers attending dietary counseling [OR= 0.367 (95% CI: 0.182, 0.739)] were significantly associated with under-weight among HIV infected children. Conclusions: The pooled prevalence of under-nutrition among HIV infected children was high. Routine nutritional assessment and nutritional support shall be strengthened, monitored, and evaluated in HIV infected children. Implementation of policies and strategy sated by a national and international stakeholder in ART care centers should get maximum emphasis to reduce undernutrition in HIV infected children.


PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245951
Author(s):  
Delfina F. Hlashwayo ◽  
Betuel Sigaúque ◽  
Emília V. Noormahomed ◽  
Sónia M. S. Afonso ◽  
Inácio M. Mandomando ◽  
...  

Introduction Campylobacter spp. are zoonotic bacteria that cause gastroenteritis in humans worldwide, whose main symptom is diarrhea. In certain cases, extra intestinal manifestations may occur, such as Guillain Barré syndrome. The bacteria cause severe diarrhea mostly in children and in immunocompromised individuals. This review aims to address the prevalence of Campylobacter spp. in humans in sub-Saharan Africa. It also aims to understand the impact of HIV in the prevalence, as well as to report data on antibiotic resistance and propose research priorities. Methods We followed PRISMA guidelines to find studies on the occurrence of Campylobacter spp. in humans in all countries from sub-Saharan Africa. Studies published between 2000 and 2020 were searched in PubMed, Cochrane Library, CINAHL, African Index Medicus, African Journals Online, Google Scholar and Science Direct. We have conducted a random-effect meta-analysis and calculated the proportion of resistant isolates to different antibiotics. Results and discussion We found 77 studies that described such occurrence in humans in 20 out of 53 sub-Saharan African countries. Campylobacter jejuni was the most prevalent species. Pooled prevalence was 9.9% (CI: 8.4%–11.6%). No major variations within the different sub-regions were found. Most studies reported Campylobacter spp. as the cause of diarrhea, mainly in children. Some studies reported the bacteria as a possible etiologic agent of acute flaccid paralysis and urinary tract infection. Campylobacter spp. presented a higher pooled prevalence in HIV infected patients, although not statistically significant. High proportions of resistant strains were reported for many antibiotics, including erythromycin and tetracycline. Conclusion Campylobacter spp. occur in sub-Saharan Africa, although information is scarce or inexistent for many countries. Research priorities should include investigation of the understudied species; extra intestinal manifestations; the impact of HIV infection and associated risk factors. Control strategies should be reinforced to contain the spread of this pathogen and drug resistance.


2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Siraj Hussen ◽  
Birkneh Tilahun Tadesse

Objective. Syphilis is one of the most imperative STIs, caused by the spirochete Treponema pallidum. During pregnancy it is associated with disastrous health outcomes in the newborn. In sub-Saharan Africa, study findings on the prevalence of syphilis among pregnant women are highly dispersed and inconsistent. The aim of the current review is to conduct a systematic review and meta-analysis of syphilis in sub-Saharan Africa among pregnant women. Design. Systematic review and meta-analysis. Data Sources. Databases including MEDLINE, PubMed, Cochrane Library, Google Scholar, and HINARI and reference lists of previous prevalence studies were systematically searched for relevant literature from January 1999 to November 2018. Results were presented in forest plot, tables, and figures. Random-effects model was used for the meta-analysis. For the purpose of this review, a case of syphilis was defined as positive treponemal or nontreponemal tests among pregnant women. Data Extraction. Our search gave a total of 262 citations from all searched databases. Of these, 44 studies fulfilling the inclusion criteria and comprising 175,546 subjects were finally included. Results. The pooled prevalence of syphilis among pregnant women in sub-Saharan Africa was 2.9% (95%CI: 2.4%-3.4%). East and Southern African regions had a higher syphilis prevalence among pregnant women (3.2%, 95% CI: 2.3%-4.2% and 3.6%, 95%CI: 2.0%-5.1%, respectively) than the sub-Saharan African pooled prevalence. The prevalence of syphilis among pregnant women in most parts of the region seemed to have decreased over the past 20 years except for the East African region. However, prevalence did not significantly differ by region and time period. Conclusion. This review showed a high prevalence of syphilis in sub-Saharan Africa among pregnant women. The evidence suggests strengthening the screening program during pregnancy as part of the care package during antenatal care visits. Programs focusing on primary prevention of syphilis in women should also be strengthened.


Author(s):  
Muluken Dessalegn Muluneh ◽  
Virginia Stulz ◽  
Lyn Francis ◽  
Kingsley Agho

This study aimed to systematically review studies that examined the prevalence of gender based violence (GBV) that included intimate partner violence (IPV) and non-IPV among women in sub-Saharan Africa (SSA). This evidence is an important aspect to work towards achieving the Sustainable Development Goals (SDG’s) target of eliminating all forms of violence in SSA. The Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) guidelines were followed. Ovid Medline, CINAHL, Cochrane Central, Embase, Scopus and Web of Science were used to source articles with stringent eligibility criteria. Studies on GBV in SSA countries that were published in English from 2008 to 2019 were included. A random effect meta-analysis was used. Fifty-eight studies met the inclusion criteria. The pooled prevalence of IPV among women was 44%, the past year-pooled prevalence of IPV was 35.5% and non-IPV pooled prevalence was 14%. The highest prevalence rates of IPV that were reported included emotional (29.40%), physical (25.87%) and sexual (18.75%) violence. The sub-regional analysis found that women residing in Western (30%) and Eastern (25%) African regions experienced higher levels of emotional violence. Integrated mitigation measures to reduce GBV in SSA should focus mainly on IPV in order to achieve the SDG’s that will lead to sustainable changes in women’s health.


2020 ◽  
Author(s):  
Bekahegn Girma ◽  
Jemberu Nigussie ◽  
Alemayehu Molla ◽  
Moges Mareg

Abstract AbstractBackground: Under nutrition is a global problem and in increasing trend in recent years. The burden is high in low and middle-income countries; especially in Africa. Lactating women are among the most vulnerable groups for undernutrition; especially in sub-Saharan Africa. However, the prevalence of undernutrition among this group is inconsistent and inconclusive in Ethiopia, and also the national nutritional plan of 2015 is not yet achieved. Furthermore, to achieve the 2030 Sustainable developmental plan, conducting this type of summarized reviews are helpful. Therefore, we aimed to assess the pooled prevalence of undernutrition and its associated factors among lactating mothers in Ethiopia.Methods: To write this review and meta-analysis we followed the preferred reporting items for systematic reviews and meta-analysis guidelines. We used PubMed, Hinari, Cochrane Library, science direct databases, Google, and Google scholar for searching. STATA version 14 software and a standardized format were used for analysis and data extraction respectively. Heterogeneity was checked using I2. A random-effect meta-analysis model was used to determine the pooled prevalence of undernutrition. Begg's and Egger's tests were conducted to detect publication bias. Subgroup analysis was also conducted and association was expressed by a pooled odds ratio with 95% CI.Result: A total of 16 studies were included with a total of 7830 Ethiopian lactating women. The pooled prevalence of undernutrition among lactating mothers was found to be 23.86% (95% CI: 19.01, 28.72). The result of heterogeneity test was I2 = 96.7% and p < 0.001). The Begg's and Eger's test findings after we removed two influential primary articles were P: 0.443 and P: 0.306 respectively. Educational status (no formal education) (Pooled OR: 2.30 (95% CI: 1.34, 3.96)) was significantly associated with undernutrition.Conclusion: The pooled prevalence of undernutrition was high. Maternal educational status was significantly associated with undernutrition. Therefore, the federal ministry of health and the concerned stakeholders should give attention to these most vulnerable groups, refine their strategies to address this issue, and strengthen the implementation of the previously designed strategies.


Viruses ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 62 ◽  
Author(s):  
Debasu Damtie ◽  
Mulugeta Melku ◽  
Belay Tessema ◽  
Anastasia N. Vlasova

Rotavirus infection is the major cause of acute gastroenteritis among children globally. Sub-Saharan Africa including Ethiopia is disproportionally affected by the disease. The aims of this review were to determine the pooled prevalence of rotavirus infection among children under-five and to identify the dominant rotavirus genotypes in Ethiopia. Twelve studies were included to estimate the pooled prevalence of rotavirus acute gastroenteritis and five studies were used to determine predominantly circulating genotypes of rotavirus. The pooled prevalence of rotavirus infection was 23% (95% CI = 22%–24%). G3 (27.1%) and P[8] (49%) were the dominant G and P types, respectively. The G8 G-type uncommon in humans but highly prevalent in cattle was also reported accounting for 1% of all cases. The major G/P combinations were G12P[8] (15.4%), G3P[6] (14.2%), G1P[8] (13.6%) and G3P[8] (12.9%) collectively accounting for 56.1% of rotavirus strains. Similar to other parts of the world, the dominance of G1, G3, P[6] and P[8] genotypes was noted in Ethiopia. The increased prevalence of G12P[8] strains observed in Ethiopia was similar to observations in other geographic regions in the post-vaccine introduction period. Thus, further studies are required on the vaccine effectiveness, genotype distribution and inter-species transmission potential of rotaviruses in Ethiopia.


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