Prevalence of curable STIs and bacterial vaginosis during pregnancy in sub-Saharan Africa: a systematic review and meta-analysis

ObjectiveSTIs remain a global public health problem with a high burden among pregnant women. STIs in pregnant women may lead to various adverse pregnancy outcomes. In most sub-Saharan African countries, syndromic management is used for screening and treatment of STIs. We aimed to update and summarise pooled prevalence of curable STIs and bacterial vaginosis (BV) among pregnant women in sub-Saharan Africa.MethodsElectronic databases and reference lists of relevant published and unpublished studies were searched from March 2015 to October 2020. Studies were included if they estimated prevalence of Chlamydia trachomatis (CT), Trichomonas vaginalis (TV), Neisseria gonorrhoeae (NG), Treponema pallidum (syphilis), Mycoplasma genitalium (MG) and BV among pregnant women in sub-Saharan Africa. Meta-analyses were performed with observed prevalences corrected for diagnostic errors to estimate the pooled prevalence of diagnosed infections by region.ResultsA total of 48 studies met the inclusion criteria, providing 85-point prevalence estimates for curable STIs and BV. Pooled prevalence estimates (with 95% CI and number of women tested) were as follows: MG: 13.5% (4.0–27.2, n=1076); CT: 10.8% (6.9–15.5, n=6700); TV: 13.8% (10.0–18.0, n=9264); NG: 3.3% (2.1–4.7, n=6019); syphilis: 2.9% (2.0–4.0, n=95 308) and BV: 36.6% (27.1–46.6, n=5042). By region, BV was the most prevalent and ranged from 28.5% (24.5–32.8, n=1030) in Eastern Africa to 52.4% (33.5–70.9, n=2305) in Southern Africa; NG had the lowest prevalence, ranging from 1.4% (95% CI 0.1 to 3.1, n=367) in Central Africa to 4.4% (95% CI 2.6 to 6.4, n=4042) in Southern Africa.ConclusionThe prevalence of curable STIs and BV in sub-Saharan Africa is substantial in pregnant women but most prevalent in Southern Africa where HIV prevalence is highest. It is crucial to integrate screening of curable STIs into antenatal care programmes that have previously focused on diagnosis and treatment of syphilis and HIV.

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Prevalence of Syphilis among Pregnant Women in Sub-Saharan Africa: A Systematic Review and Meta-Analysis

BioMed Research International ◽

10.1155/2019/4562385 ◽

2019 ◽

Vol 2019 ◽

pp. 1-10 ◽

Cited By ~ 1

Author(s):

Siraj Hussen ◽

Birkneh Tilahun Tadesse

Keyword(s):

Systematic Review ◽

Pregnant Women ◽

Screening Program ◽

Meta Analysis ◽

Relevant Literature ◽

Sub Saharan Africa ◽

Cochrane Library ◽

Forest Plot ◽

Pooled Prevalence ◽

Sub Saharan

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.

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Alcohol consumption and its associated factors among pregnant women in Sub-Saharan Africa: a systematic review and meta-analysis' as given in the submission system

Substance Abuse Treatment Prevention and Policy ◽

10.1186/s13011-020-00269-3 ◽

2020 ◽

Vol 15 (1) ◽

Cited By ~ 1

Author(s):

Alemu Earsido Addila ◽

Telake Azale Bisetegn ◽

Yigzaw Kebede Gete ◽

Mezgebu Yitayal Mengistu ◽

Getnet Mihretie Beyene

Keyword(s):

Systematic Review ◽

Alcohol Consumption ◽

Alcohol Use ◽

Pregnant Women ◽

Associated Factors ◽

Unplanned Pregnancy ◽

Meta Analysis ◽

Sub Saharan Africa ◽

Pooled Prevalence ◽

Sub Saharan

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.

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Strengthening HIV services for pregnant women: an opportunity to reduce maternal mortality rates in Southern Africa/sub-Saharan Africa

BJOG An International Journal of Obstetrics & Gynaecology ◽

10.1111/j.1471-0528.2010.02726.x ◽

2010 ◽

Vol 118 (2) ◽

pp. 219-225 ◽

Cited By ~ 24

Author(s):

J Moodley ◽

RC Pattinson ◽

C Baxter ◽

S Sibeko ◽

Q Abdool Karim

Keyword(s):

Maternal Mortality ◽

Pregnant Women ◽

Southern Africa ◽

Mortality Rates ◽

Sub Saharan Africa ◽

Hiv Services ◽

Sub Saharan

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SOCIOECONOMIC STATUS AS A RISK FACTOR FOR HIV INFECTION IN WOMEN IN EAST, CENTRAL AND SOUTHERN AFRICA: A SYSTEMATIC REVIEW

Journal of Biosocial Science ◽

10.1017/s0021932004006534 ◽

2004 ◽

Vol 37 (1) ◽

pp. 1-36 ◽

Cited By ~ 104

Author(s):

JANET MAIA WOJCICKI

Keyword(s):

Systematic Review ◽

Socioeconomic Status ◽

Hiv Infection ◽

Southern Africa ◽

Case Control ◽

Sub Saharan Africa ◽

Eastern Africa ◽

Low Ses ◽

Causal Pathway ◽

Sub Saharan

This is a critical, systematic review of the relationship between socioeconomic status (SES) and HIV infection in women in Southern, Central and Eastern Africa. In light of the interest in micro-credit programmes and other HIV prevention interventions structured to empower women through increasing women’s access to funds and education, this review examines the epidemiological and public health literature, which ascertains the association between low SES using different measurements of SES and risk of HIV infection in women. Also, given the focus on structural violence and poverty as factors driving the HIV epidemic at a structural/ecological level, as advocated by Paul Farmer and others, this study examines the extent to which differences in SES between individuals in areas with generalized poverty affect risk for SES. Out of 71 studies retrieved, 36 studies met the inclusion criteria including 30 cross-sectional, one case-control and five prospective cohort or nested case-control studies. Thirty-five studies used at least one measurement of female’s SES and fourteen also included a measurement of partner’s SES. Studies used variables measuring educational level, household income and occupation or employment status at the individual and neighbourhood level to ascertain SES. Of the 36 studies, fifteen found no association between SES and HIV infection, twelve found an association between high SES and HIV infection, eight found an association between low SES and HIV infection and one was mixed. In interpreting these results, this review examines the role of potential confounders and effect modifiers such as history of STDs, number of partners, living in urban or rural areas and time and location of study in sub-Saharan Africa. It is argued that STDs and number of partners are on the causal pathway under investigation between HIV and SES and should not be adjusted as confounders in any analysis. In conclusion, it is argued that in low-income sub-Saharan Africans countries, where poverty is widespread, increasing access to resources for women may initially increase risk of HIV or have no effect on risk-taking behaviours. In some parts of Southern Africa where per capita income is higher and within-country inequalities in wealth are greater, studies suggest that increasing SES may decrease risk. This review concludes that increased SES may have differential effects on married and unmarried women and further studies should use multiple measures of SES. Lastly, it is suggested that the partner’s SES (measured by education or income/employment) may be a stronger predictor of female HIV serostatus than measures of female SES.

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A systematic review and meta-analysis of asymptomatic malaria infection in pregnant women in Sub-Saharan Africa: A challenge for malaria elimination efforts

PLoS ONE ◽

10.1371/journal.pone.0248245 ◽

2021 ◽

Vol 16 (4) ◽

pp. e0248245

Author(s):

Yonas Yimam ◽

Mehdi Nateghpour ◽

Mehdi Mohebali ◽

Mohammad Javad Abbaszadeh Afshar

Keyword(s):

Pregnant Women ◽

Malaria Infection ◽

Meta Analysis ◽

Plasmodium Malariae ◽

Sub Saharan Africa ◽

Prevalence Estimate ◽

Infection Prevalence ◽

Asymptomatic Malaria ◽

Pooled Prevalence ◽

Sub Saharan

Background In Sub-Saharan Africa (SSA), where malaria transmission is stable, malaria infection in pregnancy adversely affects pregnant women, fetuses, and newborns and is often asymptomatic. So far, a plethora of primary studies have been carried out on asymptomatic malaria infection in pregnant women in SSA. Nevertheless, no meta-analysis estimated the burden of asymptomatic malaria infection in pregnant women in SSA, so this meta-analysis was carried out to bridge this gap. Methods PubMed, Web of Science, Scopus, Embase, and ProQuest were systematically searched for relevant studies published until 4 August 2020, and also the expansion of the search was performed by October 24, 2020. We assessed heterogeneity among included studies using I-squared statistics (I2). Publication bias was assessed by visual inspection of the funnel plot and further quantitatively validated by Egger’s and Begg’s tests. The pooled prevalence and pooled odds ratio (OR) and their corresponding 95% Confidence Interval (CI) were estimated using the random-effects model in Stata 15 software. Results For this meta-analysis, we included 35 eligible studies. The overall prevalence estimate of asymptomatic Plasmodium infection prevalence was 26.1%% (95%CI: 21–31.2%, I2 = 99.0%). According to species-specific pooled prevalence estimate, Plasmodium falciparum was dominant species (22.1%, 95%CI: 17.1–27.2%, I2 = 98.6%), followed by Plasmodium vivax, Plasmodium malariae and Plasmodium ovale, respectively, found to be 3% (95%CI: 0–5%, I2 = 88.3%), 0.8% (95%CI: 0.3–0.13%, I2 = 60.5%), and 0.2% (95%CI: -0.01–0.5%, I2 = 31.5%). Asymptomatic malaria-infected pregnant women were 2.28 times more likely anemic (OR = 2.28, 95%CI: 1.66–3.13, I2 = 56.3%) than in non-infected pregnant women. Asymptomatic malaria infection was 1.54 times higher (OR = 1.54, 95%CI: 1.28–1.85, I2 = 11.5%) in primigravida women compared to multigravida women. Conclusion In SSA, asymptomatic malaria infection in pregnant women is prevalent, and it is associated with an increased likelihood of anemia compared to non-infected pregnant women. Thus, screening of asymptomatic pregnant women for malaria and anemia should be included as part of antenatal care.

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Preterm birth and its associated factors among reproductive aged women in sub-Saharan Africa: evidence from the recent demographic and health surveys of sub-Sharan African countries

BMC Pregnancy and Childbirth ◽

10.1186/s12884-021-04233-2 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Tesfa Sewunet Alamneh ◽

Achamyeleh Birhanu Teshale ◽

Misganaw Gebrie Worku ◽

Zemenu Tadesse Tessema ◽

Yigizie Yeshaw ◽

...

Keyword(s):

Preterm Birth ◽

Health Surveys ◽

Associated Factors ◽

Sub Saharan Africa ◽

Eastern Africa ◽

Demographic And Health Surveys ◽

Pooled Prevalence ◽

Sub Saharan ◽

Reproductive Aged Women ◽

Ssa Countries

Abstract Background Globally, preterm birth is the leading cause of neonatal and under-five children mortality. Sub-Saharan African (SSA) accounts for the majority of preterm birth and death following its complications. Despite this, there is limited evidence about the pooled prevalence and associated factors of preterm birth at SSA level using nation-wide representative large dataset. Therefore, this study aimed to determine the pooled prevalence and associated factors of preterm birth among reproductive aged women. Methods The recent Demographic and Health Surveys (DHSs) data of 36 SSA countries were used. We included a total weighted sample of 172,774 reproductive-aged women who were giving birth within five years preceding the most recent survey of SSA countries were included in the analysis. We used a multilevel logistic regression model to identify the associated factors of preterm birth in SSA. We considered a statistical significance at a p-value less than 0.05. Results In this study, 5.33% (95% CI: 5.23, 5.44%) of respondents in SSA had delivered preterm baby. Being form eastern Africa, southern Africa, rural area, being educated, substance use, having multiple pregnancy, currently working history, having history of terminated pregnancy, and previous cesarean section delivery, primi-parity, and short birth interval were associated with higher odds of preterm birth among reproductive aged women. However, having better wealth index, being married, wanted pregnancy, and having four or more antenatal care visit were associated with lower odds for a preterm birth among reproductive aged women. Conclusion The prevalence of preterm birth among reproductive-aged women remains a major public health problem in SSA. Preterm birth was affected by various socio-economic and obstetrical factors. Therefore, it is better to consider the high-risk groups during intervention to prevent the short-term and long-term consequences of preterm birth.

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Malarial Infection in HIV Infected Pregnant Women Attending a Rural Antenatal Clinic in Nigeria

Advances in Epidemiology ◽

10.1155/2014/694213 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

R. S. Houmsou ◽

B. E. Wama ◽

S. O. Elkanah ◽

L. C. Garba ◽

T. D. Hile ◽

...

Keyword(s):

Risk Factors ◽

Haemoglobin Level ◽

Pregnant Women ◽

Rural Areas ◽

First Trimester ◽

Antenatal Clinic ◽

Severe Anaemia ◽

Sub Saharan Africa ◽

Malarial Infection ◽

Sub Saharan

Malaria still remains a challenging infection affecting the lives of several HIV infected pregnant women in sub-Saharan Africa. This study was undertaken to determine malarial infection in HIV infected pregnant women in relation to sociodemographic and obstetrical factors. The study also assessed relationship between malarial infection and haemoglobin level, CD4+ counts, and ART regimen, as well as predisposing risk factors that influenced occurrence of malarial infection in the women. Thick and thin blood smears were prepared and stained with Giemsa. Haemoglobin level was determined using a hematology analyzer, while the flow cytometry was used to measure CD4+ counts. Sociodemographic and obstetrical parameters were obtained through the administration of questionnaires. Of the 159 HIV infected pregnant women examined, 33.3% (59/159) had malarial infection. Malarial infection was significantly higher in pregnant women who were divorced, 40.24% (33/82) (χ2=5.72; P=0.05), were at their first trimester (4–12 weeks), 54.8% (17/31) (χ2=14.85; P=0.01), had CD4+ = [201–500 cells/μL], 42.42% (42/99) (χ2=10.13; P=0.00), and those that had severe anaemia (<8 dg/L), 100.00% (χ2= 45.75; P=0.00). However, risk factors that influenced the occurrence of malarial infection in the pregnant women were occupation (farming) (AOR=0.226; P=0.03), marital status (divorced) (AOR=2.80; P=0.02), gestation (first trimester) (AOR=0.33; P=0.00), haemoglobin level (Hb < 8 dg/L) (AOR=0.02; P=0.00), and CD4+ counts (low CD4+) (OR=0.40; P=0.05). The study reported endemicity of malaria in HIV infected pregnant women living in rural areas of Benue State, Nigeria. Malarial infection was higher in women that were divorced, and at their first trimester, had low CD4+ count, and had severe anaemia. Farming, divorce, gestation, severe anaemia, and low CD4+ counts were predisposing risk factors that influenced malaria occurrence in the HIV infected pregnant women. It is advocated that HIV infected pregnant women should be properly and thoroughly educated on malaria preventive measures in rural areas so as to avoid unpleasant effect of malaria during their pregnancies.

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Genetic polymorphism and population structure ofEchinococcus ortleppi

Parasitology ◽

10.1017/s0031182016001840 ◽

2016 ◽

Vol 144 (4) ◽

pp. 450-458 ◽

Cited By ~ 17

Author(s):

F. ADDY ◽

M. WASSERMANN ◽

F. BANDA ◽

H. MBAYA ◽

J. ASCHENBORN ◽

...

Keyword(s):

Genetic Polymorphism ◽

South America ◽

Southern Africa ◽

Dna Sequences ◽

Intraspecific Variability ◽

Sensu Stricto ◽

Sub Saharan Africa ◽

Geographical Regions ◽

Sub Saharan ◽

Eastern And Southern Africa

SUMMARYThe zoonotic cestodeEchinococcus ortleppi(Lopez-Neyra and Soler Planas, 1943) is mainly transmitted between dogs and cattle. It occurs worldwide but is only found sporadically in most regions, with the notable exception of parts of southern Africa and South America. Its epidemiology is little understood and the extent of intraspecific variability is unknown. We have analysed in the present study the genetic diversity among 178E. ortleppiisolates from sub-Saharan Africa, Europe and South America using the complete mitochondrialcox1(1608 bp) andnad1(894 bp) DNA sequences. Genetic polymorphism within the loci revealed 15cox1and sixnad1haplotypes, respectively, and 20 haplotypes of the concatenated genes. Presence of most haplotypes was correlated to geographical regions, and only one haplotype had a wider spread in both eastern and southern Africa. Intraspecific microvariance was low in comparison withEchinococcus granulosussensu stricto, despite the wide geographic range of examined isolates. In addition, the various sub-populations showed only subtle deviation from neutrality and were mostly genetically differentiated. This is the first insight into the population genetics of the enigmatic cattle adaptedEchinococcus ortleppi. It, therefore, provides baseline data for biogeographical comparison amongE. ortleppiendemic regions and for tracing its translocation paths.

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Firearms in Southern Africa: A survey

The Journal of African History ◽

10.1017/s0021853700011117 ◽

1971 ◽

Vol 12 (4) ◽

pp. 517-530 ◽

Cited By ~ 3

Author(s):

Shula Marks ◽

Anthony Atmore

Keyword(s):

Nineteenth Century ◽

Seventeenth Century ◽

Southern Africa ◽

Sub Saharan Africa ◽

Black And White ◽

Sub Saharan ◽

Settler Population ◽

White Settlement

The relationships of the peoples of southern Africa after the establishment and expansion of the white settlement in the mid-seventeenth century can be seen in terms of both conflict and interdependence, both resistance and collaboration. The conflict often split over into warfare, not only between black and white, but also within both groups. As time passed, firearms came to be used by ever-widening circles of the combatants, often as much the result of the increased collaboration and interdependence between peoples as of the increased conflict. As Inez Sutton has pointed out, ‘in contrast to most of the rest of [sub-Saharan] Africa, the presence of a settler population ensured that the supply of arms was the most modern rather than the most obsolete’, and on the whole non-whites were acutely aware of changes in the manufacture of firearms in the nineteenth century.

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