Prevalence of malaria and sexually transmitted and reproductive tract infections in pregnancy in sub-Saharan Africa: a systematic review.
Abstract
CONTEXT
Malaria and sexually transmitted infections/reproductive tract infections (STIs/RTIs) in pregnancy are direct and indirect
causes of stillbirth, prematurity, low birth weight, and maternal and neonatal morbidity and mortality.
OBJECTIVE
To conduct a systematic review and meta-analysis of malaria and STI/RTI prevalence estimates among pregnant women attending
antenatal care facilities in sub-Saharan Africa.
DATA SOURCES
PubMed, MEDLINE, EMBASE, the World Health Organization International Clinical Trials Registry, and reference lists were searched
for studies reporting malaria, syphilis, Neisseria gonorrhoeae, Chlamydia trachomatis, Trichomonas vaginalis, or bacterial
vaginosis among pregnant women attending antenatal care facilities in sub-Saharan Africa.
STUDY SELECTION
Included studies were conducted in 1990-2011 with open enrollment. Studies from South Africa, where malaria is no longer endemic,
were excluded.
DATA EXTRACTION
Point prevalence estimates were corrected for diagnostic precision. A random-effects model meta-analysis was applied to produce
pooled prevalence estimates.
RESULTS
A total of 171 studies met inclusion criteria, providing 307 point prevalence estimates for malaria or STIs/RTIs and including
a total of 340 904 women. The pooled prevalence estimates (with 95% CIs and number of women with positive diagnosis) among
studies in 1990-2011 in East and Southern Africa were as follows: syphilis, 4.5% (3.9%-5.1%; n = 8346 positive diagnoses),
N gonorrhoeae, 3.7% (2.8%-4.6%; n = 626), C trachomatis, 6.9% (5.1%-8.6%; n = 350), T vaginalis, 29.1% (20.9%-37.2%; n = 5502),
bacterial vaginosis, 50.8% (43.3%-58.4%; n = 4280), peripheral malaria, 32.0% (25.9%-38.0%; n = 11 688), and placental malaria,
25.8% (19.7%-31.9%; n = 1388). West and Central Africa prevalence estimates were as follows: syphilis, 3.5% (1.8%-5.2%; n
= 851), N gonorrhoeae, 2.7% (1.7%-3.7%; n = 73), C trachomatis, 6.1% (4.0%-8.3%; n = 357), T vaginalis, 17.8% (12.4%-23.1%;
n = 822), bacterial vaginosis, 37.6% (18.0%-57.2%; n = 1208), peripheral malaria, 38.2% (32.3%-44.1%; n = 12 242), and placental
malaria, 39.9% (34.2%-45.7%; n = 4658).
CONCLUSION
The dual prevalence of malaria and STIs/RTIs in pregnancy among women who attend antenatal care facilities in sub-Saharan
Africa is considerable, with the combined prevalence of curable STIs/RTIs being equal to, if not greater than, malaria.
Links
Authors
Chico RM, Mayaud P, Ariti C, Mabey D, Ronsmans C, Chandramohan D
Institution
Department of Disease Control, Malaria Centre, London School of Hygiene and Tropical Medicine, London, England. matthew.chico@lshtm.ac.uk
Source
JAMA : the journal of the American Medical Association 307:19 2012 May 16 pg 2079-86MeSH
Africa South of the SaharaFemale
Humans
Malaria
Pregnancy
Pregnancy Complications, Infectious
Prevalence
Reproductive Tract Infections
Sexually Transmitted Diseases
Pub Type(s)
Journal ArticleMeta-Analysis
Review
Language
eng
PubMed ID
22665107
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