SynthesisBMC pregnancy and childbirth2018
Association of Chlamydia trachomatis infections with preterm delivery; a systematic review and meta-analysis.
Synthesis in BMC pregnancy and childbirth, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 49 citations in OpenAlex.
- Associations between microbial presence in follicular fluid with IVF outcomes: a systematic review and meta-analysis.Journal of assisted reproduction and genetics · 2023Pooled it
- Pooled it
- Effect of Chlamydia trachomatis on adverse pregnancy outcomes: a meta-analysis.Archives of gynecology and obstetrics · 2020Pooled it
- Identifying youth at high risk for sexually transmitted infections in community-based settings using a risk prediction tool: a validation study.BMC infectious diseases · 2021Trial
- Prevalence ofInternational journal of women's health · 2026Article
- A Scoping Review of Approaches to Extragenital Chlamydia and Gonorrhea Screening for Adolescents and Young Adults in the United States.Nursing for women's health · 2025Article
- Sexually transmitted infections and bacterial vaginosis and preterm birth in pregnant people living with HIV: A population-based cohort study.International journal of STD & AIDS · 2025Article
- Indirect Effects of Neighbourhood Socioeconomic Status on Preterm Birth Risk in an Argentine Population.Maternal and child health journal · 2024Article
- Characteristics of common pathogens of urogenital tract among outpatients in Shanghai, China from 2016 to 2021.Frontiers in public health · 2023Article
- Sexually Transmitted Infections in Pregnant People With Human Immunodeficiency Virus: Temporal Trends, Demographic Correlates, and Association With Preterm Birth.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022Article
- Frequency ofPathogens (Basel, Switzerland) · 2022Article
- Analysis of Ureaplasma urealyticum, Chlamydia trachomatis, Mycoplasma genitalium and Neisseria gonorrhoeae infections among obstetrics and gynecological outpatients in southwest China: a retrospective study.BMC infectious diseases · 2022Article
- Aetiological testing compared with syndromic management for sexually transmitted infections in HIV-infected pregnant women in South Africa: a non-randomised prospective cohort study.BJOG : an international journal of obstetrics and gynaecology · 2021Article
- Presence ofThe journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2021Article
- Bacteriospermia and its association with seminal fluid parameters and infertility in infertile men, Kerman, Iran: A cross-sectional study.International journal of reproductive biomedicine · 2021Article
- Article
- High rates of persistent and recurrent chlamydia in pregnant women after treatment with azithromycin.American journal of obstetrics & gynecology MFM · 2020Article
- Role of galectin-glycan circuits in reproduction: from healthy pregnancy to preterm birth (PTB).Seminars in immunopathology · 2020Review
- Prevalence of Ureaplasma urealyticum, Chlamydia trachomatis, and Neisseria gonorrhoeae in gynecological outpatients, Taizhou, China.Journal of clinical laboratory analysis · 2020Article
- Relationship between Vaginal Bacterial Infections and Pregnancy Outcomes: A Systematic Review and Meta-Analysis.Iranian journal of nursing and midwifery researchReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPremature birth is a primary cause of infant mortality and its etiology varies in different countries. Chlamydia trachomatis (CT) is a common infectious agent transmitted through sexual contact. The purpose of this study is to investigate the connection between CT infections and preterm birth by meta-analysis.
methodsAll articles published in literature databases including Google Scholar, PubMed, ISI (Web of Science), Biological Abs, IranMedex, SID, and Scopus were investigated. Twenty-four relevant articles, authored betweenm 1998-2014 were analyzed through a random effects model. Heterogeneity of the studies was evaluated by I
resultsThe overall prevalence of CT infections leading to preterm deliveries was estimated to be 0.13% (CI 95%: 0.11-0.16). The prevalence of CT infections leading to preterm deliveries were calculated based on the study method including PCR [0.06 (CI 95%: 0.04-0.09)], serology [0.23 (CI 95%: 0.10-0.35)] and culture [0.17 (CI 95%: 0.10-0.24)]. Analysis indicates that women with chlamydia infections were 2.28 more likely to deliver pre-term in comparison with those who were not infected. It can be concluded that chlamydia infections increase the risks of preterm delivery, OR = 2.28 (95% CI:1.64-3.16).
conclusionsIn regard to the results in numerous studies performed on different continents, this meta- analysis showed a clear association between preterm delivery and prior CT colonization.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.