Prevalence of chlamydia trachomatis infection among reproductive age women in sub Saharan Africa: a systematic review and meta-analysis
BMC Infectious Diseases volume 18, Article number: 596 (2018)
Chlamydia trachomatis is the most common curable sexual transmitted bacterial infection in the world, including Sub-Saharan Africa. There is nil systematic review and meta-analysis on Chlamydia trachomatis infection in Sub-Saharan Africa among reproductive age women. Therefore, this study was carried out to determine the pooled prevalence of chlamydia trachomatis infection in Sub-Saharan Africa among reproductive age women.
A comprehensive literature search was conducted from biomedical data bases: Medline, PubMed, EMBASE, Google scholar, HINARI and Cochrane Library using a special index search terms (medical subject headings (MeSH), title and abstract. The Cochrane Q test and I2 statistics was used to test heterogeneity and publication bias was assessed using Begg’s and Egger’s tests. Results were presented in tables, figures and funnel plot. Data were pooled in a meta-analysis using a random effects model.
Twenty-four studies were included in this meta–analysis. There was a high level of heterogeneity among studies. The pooled prevalence of Chlamydia trachomatis infection in Sub-Saharan Africa among reproductive age women was 7.8% (95% CI: 5.6–10.6).
This review showed that Chlamydia trachomatis infection is high in Sub-Saharan Africa among reproductive age group women. This evidence suggests that governmental and non-governmental organization shall give attention for primary prevention of this infection. Likewise, in resource limited countries policy makers, stakeholders and health care providers’ due attention for Chlamydia trachomatis specific and rapid diagnostic test, treatment in any medical out and in patient clinics for reproductive age women.
Chlamydia trachomatis is the major public health concern across the globe,and the main cause of sexual transmitted infections throughout the world, especially Sub-Saharan Africa . The World Health Organization (WHO) estimated that 50 million women were newly infected with Chlamydia trachomatis worldwide, of which 34 million were in Sub-Saharan Africa and South/Southeast Asia.It is the most implicated organism that causes infertility and pelvic inflammatory disease [2,3,4,5].
Chlamydia trachomatis is the most common curable sexual transmitted bacterial infection in the world, with an estimated 4–5 million new cases each year . WHO estimated that, the incidence of Chlamydia trachomatis is high in sub-Saharan Africa, which is more than 10 million new infection annually .
Chlamydial infection in women is commonly asymptomatic. Undetected and untreated Chlamydial infection can ascend upper genitalia that may cause pelvic inflammatory disease (PID), infertility, ectopic pregnancy and chronic pelvic pain [7, 8]. Chlamydial infection in women show that different clinical manifestations and associated disease like: cervicitis,endometritis, salpingitis, pelvic inflammatory disease, infertility, preterm rupture of membranes, perihepatitis, while most of women do not get medical care, because more than three forth of women are commonly asymptomatic .Untreated Chlamydial infection cause up to 40% of pelvic inflammatory disease cases, one in four of these will result in infertility .
Untreated genital infection in sub-Saharan Africa can cause up to 85% of infertility among women who seek infertility treatment and care. Undetected and untreated Chlamydial infections during pregnancy can increase risk of cervicitis, endometritis, salpingitis, pelvic inflammatory disease, infertility, perihepatitis, premature rupture of the membranes, low birth weight,chorio amnionitis, neonatal sepsis and conjunctivitis in new born [11, 12]. Whereas, the risk of developing PID after lower genital tract chlamydial infection varies considerably, up to 30%, and the risk of developing tubal infertility after PID is 10–20% .
Chlamydial infection can occur at any anatomical site of sexual contact including endocervix, urethra, rectum, and oropharynx, which causes pelvic inflammatory disease, infertility, ectopic pregnancy and chronic pelvic pain for women .
Throughout our search and knowledge, there is no systematic review and meta-analysis regarding Chlamydia trachomatis infection among reproductive age women in Sub-Saharan Africa. This study is used as an input for clinician, public health experts and stake holders for possible interventions.
Study design and search strategy
A systematic review and meta-analysis was done using published articles on prevalence of Chlamydia trachomatis in Sub-Saharan Africa. A comprehensive literature search was conducted from biomedical data bases: Medline, PubMed, EMBASE, Google scholar, HINARI and Cochrane Library using a special index search terms (medical subject headings (MeSH) “prevalence of Chlamydia trachomatis AND Sub-Saharan Africa, Chlamydia trachomatis AND reproductive age group, Chlamydia trachomatis OR Neisseria gonorrhea, Chlamydia trachomatis OR sexual transmitted infection”, title and abstract. The limit of language was English and the limit of study group was human. Searching of articles were carried out from March to October 01, 2017.
Study selection and data extraction
Cross-sectional studies published in English language from 1997 to 2017 were included. Articles that assessed prevalence of Chlamydia trachomatis infection among reproductive age group who attended ANC, family planning clinic, STI clinic, Gynecology clinic and in general population were used. Age restriction was imposed. Reproductive age group women were defined as those of age 15–49 years.
The critical appraisal was done before the extraction of data. Data extraction was carried out using the Downs and Black checklist . All essential information was extracted from the final selected studies. It contains study year, population characteristics, sample size, prevalence, age, and Chlamydia trachomatis screening technique. Four authors independently reviewed the studies and inconsistencies were resolved through discussion and consensus.
The quality of selected articles were assessed using 12 point scoring system based on Downs and Black check lists. These are: (clarity of objective, reported response rate which scored ≥80%, clear data collection methods and procedures, study design clearly described, sample representativeness of the entire population, the main finding of the study clearly described, suitable sampling methods, reliable measurement of outcome variable, use of appropriate statistical analysis method, and quality assurance methods). Mean quality score was used to assess the quality of included studies in the meta-analysis. Studies which scored above the mean of the quality score were grouped into the high-quality score, and those below the mean were grouped as low-quality score and not include in the meta-analysis .
Data entry and analysis were done using Comprehensive Meta-Analysis (version 3.1).The pooled prevalence of Chlamydia trachomatis with 95%CI was obtained using the random effects model, due to the possibility of heterogeneity among the studies.
Sub-group analysis was conducted based on type of study population; (Community based, FCSWS Health facility based), Geographical zone; (East Africa, Middle Africa, Southern Africa and West Africa), laboratory diagnostic methods (ICT and PCR) and Year of study; (1997–2001, 2002–2006, 2007–2011, and 2012–2016).
Heterogeneity and publication bias
The heterogeneity of studies were assessed using Cochran’s Q test and I2 test statistics. A Cochran’s Q test P < 0.10 is indicated that heterogeneity between the studies . The level of I2 test statistics of 25, 50 and 75% are used low, medium and high heterogeneity, respectively . Publication bias was assessed by Egger’s and Begg’s test, and p-value less than 0.05 is statistically significance, and there is publication bias .
A total of 93 records were retrieved through electronic database searching. Records were screened using their titles, abstracts and through full article review. Accordingly, a total of 63 articles were excluded using their title and abstract review. Thirty articles were assessed for eligibility and six article was excluded by exclusion criteria in the study. Finally, 24 articles were included in this meta-analysis (Fig. 1). The Cohran’s Q (905.3) and I2 statistics (I2 = 97.459%; p < 0.0001) revealed that high heterogeneity among studies. However, neither Egger’s test (p = 0.231) nor Begg’s test (p = 0.085) gave evidence of publication bias, which indicate to use random effects model.
The total study population size screened for Chlamydia trachomatis and involved in this systematic review and meta-analysis were 17,119.Among these, 9606 were screened at community based studies [18,19,20,21,22,23], about 2638 were FCSWS [19, 20, 24,25,26,27,28] and 4875 were at health facility based studies [28,29,30,31,32,33,34,35,36,37,38]. The sample size of study population varied from 100  to 4886 , and were conducted between the year 1997–2001 [19, 22, 30], 2002–2006 , 2007–2011 [21, 26, 31] and 2012–2016 [23, 27, 34,35,36]. Geographically,the population screened for Chlamydia trachomatis four regions of Sub-Saharan Africa: East Africa [19, 22, 27, 32,33,34,35, 37],West Africa [18, 20,21,22,23,24, 26, 28,29,30], Southern Africa [22, 31, 39], and middle Africa [25, 38] (Table 1).
The analysis of 24 studies, according to the Der Simonian-Laird random-effects model. The pooled prevalence of C. trachomatis among Sub-Saharan African reproductive age women was 7.8% (95% CI: 5.6–10.6) (Fig. 2). In particular, the pooled prevalence among subgroup was 9.7% (95% CI: 5.8–16.0) in FCSWs, 7.0% (95% CI; 3.2–14.7) in community based studies, and 7.6% (95% CI; 4.7–12.3) in health facility studies. Regarding year of study, 3.8% (95% CI; 2.1–6.7) from 1997 to 2001, 8.4% (95% CI; 1.8–31.1) from 2002 to 2006, 8.8% (95% CI; 3.7–19.5) from 2007 to 2011 and11.0% (95% CI; 7.3–16.4) from 2012 to 2016, while among diagnostic method 12.8% (95% CI; 7.6–20.6) screened by ICT, and 5.8% (95% CI; 3.8–8.6) screened by PCR (Table 2). Further, subgroup analysis was done among geographical location, 8.9% (95% CI; 4.5–16.6) in East Africa, 7.2% (95% CI; 1.8–24.6) Middle Africa, 5.9% (95% CI; 1.9–16.8) Southern Africa, and 7.4% (95% CI; 4.1–13.1) in West Africa (Fig. 3).
Chlamydia trachomatis is an important public health problem across the globe, including Sub-Saharan Africa. Most developed countries have implemented specific chlamydial infection control programs that vary from case management to opportunistic screening of high risk groups and annual screening program for sexually active women age < 25 years to tackle the problem. These countries decreased chlamydial infection and its complication, while in developing countries the management is still syndromic approach, and its infection and complications are still huge burden in Sub-Saharan Africa , because of its asymptomatic nature of the infection in most patients left unnoticed and remain untreated for longer period of time, there by transmitting the infection to their sexual partner(s). Annual screening of Chlamydia trachomatis in low income countries in all sexually active women aged < 25 years isn’t applied, whereas after complications the cost of diagnosis and treatment is high, which is compared to annual screening [7, 11]. In resource limited countries, reports of Chlamydia trachomatis represents only ‘tip of ice berg’, most of women have asymptomatic stage .
Based on the available data, the present study attempted to synthesize prevalence of chlamydia trachomatis in Sub-Saharan Africa among reproductive age women. In most studies the prevalence of chlamydia trachomatis is widely different from time to time, region to region, study population, study setting and type of laboratory diagnosis method.
This systematic review and meta-analysis showed that Chlamydia trachomatis among reproductive age group women in Sub-Saharan Africa was 7.8%, among diagnostic method 5.8% screened by PCR and 12.8% screened by ICT. This finding is inconsistent with WHO 2008 estimated in Africa is 2.6% , in 2005 is 4%  and global estimated is 4.2% .This finding is in line with systematic review in women attending antenatal care estimated prevalence of 6.9%, and the highest prevalence is predominantly at younger age < 25 years for chlamydial infection [41, 42].
In this study, the prevalence in east Africa was 8.9%. This finding is in agreement with the 6.9% reported in a systematic review and meta-analysis in East/Southern Africa, and 6.1% (95% CI: 4.0–8.3) in West/Central Africa. But, lower than a single counties reviewed studies like 4.9–14% in China, 0.1–35.9% in India, 5.7–16.2% in Thailand, 19.3% in Mongolia, and 41–44% in Bangladesh . The difference might be, in this study, most of studies takes place in health facilities and around urban area, whereas studies in Asia is nationwide and screening strategy and diagnostic method quite different from Sub-Saharan Africa.
This finding is slightly higher than over all prevalence of a systematic reviewed in Australia is 4.6%, but with similar prevalence of 5.6% among adolescent and young adults  and in Europe, the prevalence ranged from1.7 to 17% depending on the setting, context and country  and this finding also slightly higher than over all prevalence in USA is 5% .
Over all prevalence in Australia is slightly lower than this study might be Australia women are more educated and treated at asymptomatic stage, because in Australia there is annual chlamydial infection screening for sexual active women age < 25 years.
This finding is slightly lower than with a systematic review in prison is 12.31% (95% CI:10.61, 14.01) for chlamydial infection in women, and a systematic review and meta-analysis in Iran, the pooled prevalence of the bacterium in the female population was 12.3% (95% CI: 10.6–14.2%) [46, 47]. The difference might be sociocultural, socioeconomically, screening strategy and types of laboratory diagnostic methods.
Pooled prevalence of Chlamydia trachomatis infection among commercial sex workers sub group was 9.7% (95% CI: 5.8–16.0). This study is unlikely with the population based meta-analysis study conducted in Australia, for women age < 25 years reported 5.0% (95% CI: 3.1, 6.9), among women aged < 25 years attending sexual health, family planning or youth clinics, estimated prevalence was 6.2% (95% CI:5.1, 7.4; 10), and other key finding include pooled prevalence estimates of 22.1% (95% CI: 19.0, 25.3) for indigenous women < 25 years .
Potential limitations of this study, due to the nature of infection, most women are asymptomatic, or treated at private or traditional, self-treated and unreported or under reported, whereas Chlamydia trachomatis is under estimated. Another important limitation is that different diagnostic methods were used in the studies included in meta-analysis. The current estimates are limited to urogenital infections. But, chlamydial infection can be rectal and oropharyngeal infection. An important limitation is the use of reproductive age women as search term. Other limitations, among further others are the heterogeneity of data and lack of reproductive tract impact data.
Implication of this study; this review generate information on prevalence of Chlamydia trachomatis infection among reproductive age women in Sub-Saharan Africa. Therefore, Sub-Saharan Africa countries and their stakeholders use this information for evidence-based intervention, to establish rapid diagnostic test and to improve their national surveillance system of Chlamydia trachomatis infection. This systematic and meta-analysis is an input for developing countries, stakeholders and policy makers to develop diagnostic and treatment programs for Chlamydia trachomatis infections. Chlamydia trachomatis is a serious public health problem in developing countries, especially Sub Saharan Africa. STI including Chlamydia trachomatis over shadowed by HIV/AIDS and given less attention .
This study revealed that chlamydia trachomatis infection in Sub-Saharan Africa among reproductive age group women is high. This evidence suggests that the government and non-government organization shall give attention for primary prevention of this infection. Likewise, in resource limited countries policy makers, stakeholders and health care providers’ due attention on Chlamydia trachomatis specific and rapid diagnostic test, treatment in any medical out and in patient clinics for reproductive age women.
Antenatal care clinic
Female commercial sex workers
Polymerase chain reaction
Pelvic inflammatory disease
Sexual transmitted infection
World health organization
Adachi K, Nielsen-Saines K, Klausner JD. Chlamydia trachomatis infection in pregnancy: the global challenge of preventing adverse pregnancy and infant outcomes in sub-Saharan Africa and Asia. 2016:1–21. https://doi.org/10.1155/2016/9315757.
World Health Organization. Prevalence and incidence of selected sexually transmitted infections, Chlamydia trachomatis, Neisseria gonorrhoeae, Syphilis and trichomonas vaginalis: methods and results used by WHO to generate 2005 estimates. Geneva; 2011.
Enwuru CP, Umeh SI. Asymptomatic Carriage of Chlamydia trachomatis Among Young Adults in Owerri, South East Nigeria. 2014:3:49–53.
Finan R, Tamim H, Almawi W. Identification of chlamydia trachomatis DNA in human papillomavirus (HPV) positive women with normal and abnormal cytology. Arch Gynecol Obstet. 2002;266(3):168–71.
Okoror L, Agbonlahor D, Esumeh F, Umolu P. Prevalence of chlamydia in patients attending gynecological clinics in south eastern Nigeria. Afr Health Sci. 2007;7(1):18–24.
Newman L, Rowley J, Vander Hoorn S, Wijesooriya NS, Unemo M, Low N, et al. Global estimates of the prevalence and incidence of four curable sexually transmitted infections in 2012 based on systematic review and global reporting. PLoS One. 2015;10(12):e0143304.
Land J, Van Bergen J, Morre S, Postma M. Epidemiology of chlamydia trachomatis infection in women and the cost-effectiveness of screening. Hum Reprod Update. 2009;16(2):189–204.
World Health Organization. Global incidence and prevalence of selected curable. Sex Transm Infect. 2008:19–20.
Haggerty CL, Gottlieb SL, Taylor BD, Low N, Xu F, Ness RB. Risk of sequelae after chlamydia trachomatis genital infection in women. J Infect Dis. 2010;201(Suppl 2):S134–55.
World Health Organization. Global strategy for the prevention and control of sexually transmitted infections: 2006–2015: breaking the chain of transmission. Geneva; 2007.
World Health Organization. Sexually transmitted infections (STIs): the importance of a renewed commitment to STI prevention and control in achieving global sexual and. Reprod Health. 2013:1–2.
World Health Organization.Laboratory diagnosis of sexually transmitted infections, including human immunodeficiency virus. Geneva; 2013.
Peters RP, Nijsten N, Mutsaers J, Jansen CL, Morré SA, van Leeuwen AP. Screening of oropharynx and anorectum increases prevalence of chlamydia trachomatis and Neisseria gonorrhoeae infection in female STD clinic visitors. Sex Transm Dis. 2011;38(9):783–7.
Downs SH, Black N. The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions. J Epidemiol Community Health. 1998;52(6):377–84.
DerSimonian R, Laird N. Meta-analysis in clinical trials. Control Clin Trials. 1986;7(3):177–88.
Rücker G, Schwarzer G, Carpenter JR, Schumacher M. Undue reliance on I 2 in assessing heterogeneity may mislead. BMC Med Res Methodol. 2008;8(1):79.
Ioannidis JP. Interpretation of tests of heterogeneity and bias in meta-analysis. J Eval Clin Pract. 2008;14(5):951–7.
Yirenya-Tawiah D, Annang TN, Apea-Kubi KA, Lomo G, Mensah D, Akyeh L, et al. Chlamydia trachomatis and Neisseria gonorrhoeae prevalence among women of reproductive age living in urogenital schistosomiasis endemic area in Ghana. BMC Res Notes. 2014;7(1):349.
Obasi AI, Balira R, Todd J, Ross DA, Changalucha J, Mosha F, et al. Prevalence of HIV and chlamydia trachomatis infection in 15–19-year olds in rural Tanzania. Tropical Med Int Health. 2001;6(7):517–25.
Wariso K, Odigie J, Eyaru S. Prevalence of chlamydia trachomatis infection among female undergraduates of the University of Port Harcourt Using Strand Displacement and Amplification [SDA] technique. Nigerian Health J. 2012;12(2):35–8.
Ikeme A, Ezegwui H, Ikeako L, Agbata I, Agbata E. Seroprevalence of chlamydia trachomatis in Enugu, Nigeria. Niger J Clin Pract. 2011;14(2):176–80.
Buve A, Weiss HA, Laga M, Van Dyck E, Musonda R, Zekeng L, et al. The epidemiology of gonorrhoea, chlamydial infection and syphilis in four African cities. AIDS. 2001;15:S79–88.
Arinze AUH, Onyebuchi NV, Isreal J. Genital chlamydia trachomatis infection among female undergraduate students of University of Port Harcourt, Nigeria. Niger Med J. 2014;55(1):9.
Abubakari A, Osei-Djarbeng SN, Larbi JA, Frimpong EH. Presence of chlamydia infection among asymptomatic female commercial sex-workers (CSWs) in the Kumasi Metropolis, Ghana. Int J Curr Microbiol App Sci. 2016;5(1):342–9.
Vandepitte JM, Malele F, Kivuvu D-M, Edidi S, Muwonga J, Lepira F, et al. HIV and other sexually transmitted infections among female sex workers in Kinshasa, Democratic Republic of Congo, in 2002. Sex Transm Dis. 2007;34(4):203–8.
Opoku B, Sarkodie Y. Prevalence of genital chlamydia and gonococcal infections in at risk women in the Kumasi metropolis, Ghana. Ghana Med J. 2010;44(1):21–4.
Francis SC, Ao TT, Vanobberghen FM, Chilongani J, Hashim R, Andreasen A, et al. Epidemiology of curable sexually transmitted infections among women at increased risk for HIV in northwestern Tanzania: inadequacy of syndromic management. PLoS One. 2014;9(7):e101221.
Adesiji Y, Iyere S, Ogah I. Low prevalence of chlamydia trachomatis infection in women from southern Nigeria. Nitte Univ J Health Sci. 2015;5(1):4.
Apea-Kubi KA, Yamaguchi S, Sakyi B, Kishimoto T, Ofori-Adjei D, Hagiwara T. Neisseria gonorrhoea, chlamydia trachomatis, and Treponema pallidum infection in antenatal and gynecological patients at Korle-Bu teaching hospital, Ghana. Jpn J Infect Dis. 2014;57(6):253–6.
Gomes J, Tavira L, Exposto F, Prieto E, Catry M. Neisseria gonorrhoeae and chlamydia trachomatis infections in patients attending STD and family planning clinics in Bissau, Guinea-Bissau. Acta Trop. 2001;80(3):261–4.
Luján J, Oñate WA, Delva W, Sambola F, Claeys P, Temmerman M, et al. Prevalence of sexually transmitted infections in women attending antenatal care in Tete province, Mozambique. SAMJ. 2008;98(1):49–51.
Kohli R, Konya WP, Obura T, Stones W, Revathi G. Prevalence of genital chlamydia infection in urban women of reproductive age, Nairobi, Kenya. BMC Res Notes. 2013;6(1):44.
Tadesse E, Teshome M, Amsalu A, Shimelis T. Genital chlamydia trachomatis infection among women of reproductive age attending the gynecology Clinic of Hawassa University Referral Hospital, southern Ethiopia. PLoS One. 2016;11(12):e0168580.
Musa M, Joel B, Lenard A, Joseph N, Ronald M, Julius M, et al. Prevalence and factors associated with genital chlamydial infections among women attending the Gynaecology clinic at Mbarara regional referral hospital. Prevalence. 2016;26:26–7.
Maina AN, Kimani J, Anzala O. Prevalence and risk factors of three curable sexually transmitted infections among women in Nairobi, Kenya. BMC Res Notes. 2016;9(1):193.
Peters RP, Dubbink JH, van der Eem L, Verweij SP, Bos ML, Ouburg S, et al. Cross-sectional study of genital, rectal, and pharyngeal chlamydia and gonorrhea in women in rural South Africa. Sex Transm Dis. 2014;41(9):564–9.
Mayaud P, Uledi E, Cornelissen J, Todd J, Rwakatare M, West B, et al. Risk scores to detect cervical infections in urban antenatal clinic attenders in Mwanza, Tanzania. Sex Transm Infect. 2016;74:S139–46.
Blankhart D, Muller O, Gresenguet G, Weis P. Sexually transmitted infections in young pregnant women in Bangui, Central African Republic. Int J STD AIDS. 1999;10(9):609–14.
Dubbink JH, De Waaij DJ, Bos M, Van der Eem L, Bébéar C, Mbambazela N, et al. Microbiological characteristics of chlamydia trachomatis and neisseria gonorrhoeae infections in South African women. J Clin Microbiol. 2016;54(1):200–3.
Low N, Cassell JA, Spencer B, Bender N, Martin Hilber A, van Bergen J, et al. Chlamydia control activities in Europe: cross-sectional survey. Eur J Public Health. 2011;22(4):556–61.
Chico RM, Mayaud P, Ariti C, Mabey D, Ronsmans C, Chandramohan D. Prevalence of malaria and sexually transmitted and reproductive tract infections in pregnancy in sub-Saharan Africa: a systematic review. JAMA. 2012;307(19):2079–86.
Dielissen PW, Teunissen DA, Lagro-Janssen AL. Chlamydia prevalence in the general population: is there a sex difference? a systematic review. BMC Infect Dis. 2013;13(1):534.
Vajdic CM, Middleton M, Bowden FJ, Fairley CK, Kaldor JM. The prevalence of genital chlamydia trachomatis in Australia 1997–2004: a systematic review. Sex Health. 2005;2(3):169–83.
Wilson J, Honey E, Templeton A, Paavonen J, Mårdh P-A, Stary A, et al. A systematic review of the prevalence of chlamydia trachomatis among European women. Hum Reprod Update. 2002;8(4):385–94.
Scholes D, Satterwhite CL, Yu O, Fine D, Weinstock H, Berman S. Long-term trends in chlamydia trachomatis infections and related outcomes in a US managed care population. Sex Transm Dis. 2012;39(2):81–8.
Kouyoumdjian F, Leto D, John S, Henein H, Bondy S. A systematic review and meta-analysis of the prevalence of chlamydia, gonorrhoea and syphilis in incarcerated persons. Int J STD AIDS. 2012;23(4):248–54.
Ahmadi MH, Mirsalehian A, Bahador A. Prevalence of genital chlamydia trachomatis in Iran: a systematic review and meta-analysis. Pathog Glob Health. 2015;109(6):290–9.
Lewis D, Newton DC, Guy RJ, Ali H, Chen MY, Fairley CK, et al. The prevalence of chlamydia trachomatis infection in Australia: a systematic review and meta-analysis. BMC Infect Dis. 2012;12:113.
Control CfD, Prevention. Sexually Transmitted Infections in Developing Countries. Current Concepts and Strategies on Improving STI Prevention, Treatment, and Control. 2008. http://documents.worldbank.org/curated/en/867421468313772326/Sexually.
Mayaud P, Uledi E, Cornelissen J, Todd J, Rwakatare M, West B, et al. Risk scores to detect cervical infections in urban antenatal clinic attenders in Mwanza, Tanzania. Sex Transm Infect. 1998;74:S139–46.
We don’t have any person or organization to acknowledge.
There was no any funding or sponsoring organization for this paper.
Availability of data and materials
We do not want to share our data to use for another study.
Ethics approval and consent to participate
Consent for publication
The authors declare that they have no competing interests.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
About this article
Cite this article
Hussen, S., Wachamo, D., Yohannes, Z. et al. Prevalence of chlamydia trachomatis infection among reproductive age women in sub Saharan Africa: a systematic review and meta-analysis. BMC Infect Dis 18, 596 (2018). https://doi.org/10.1186/s12879-018-3477-y
- Systematic review
- Chlamydia trachomatis
- Reproductive age women
- Sub-Saharan Africa