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Clinical Epigenetics Aug 2023Screening plays a key role in secondary prevention of cervical cancer. High-risk human papillomavirus (hrHPV) testing, a highly sensitive test but with limited... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Screening plays a key role in secondary prevention of cervical cancer. High-risk human papillomavirus (hrHPV) testing, a highly sensitive test but with limited specificity, has become the gold standard frontline for screening programs. Thus, the importance of effective triage strategies, including DNA methylation markers, has been emphasized. Despite the potential reported in individual studies, methylation markers still require validation before being recommended for clinical practice. This systematic review and meta-analysis aimed to evaluate the performance of DNA methylation-based biomarkers for detecting high-grade intraepithelial lesions (HSIL) in hrHPV-positive women.
METHODS
Hence, PubMed, Scopus, and Cochrane databases were searched for studies that assessed methylation in hrHPV-positive women in cervical scrapes. Histologically confirmed HSIL was used as endpoint and QUADAS-2 tool enabled assessment of study quality. A bivariate random-effect model was employed to pool the estimated sensitivity and specificity as well as positive (PPV) and negative (NPV) predictive values.
RESULTS
Twenty-three studies were included in this meta-analysis, from which cohort and referral population-based studies corresponded to nearly 65%. Most of the women analyzed were Dutch, and CADM1, FAM19A4, MAL, and miR124-2 were the most studied genes. Pooled sensitivity and specificity were 0.68 (CI 95% 0.63-0.72) and 0.75 (CI 95% 0.71-0.80) for cervical intraepithelial neoplasia (CIN) 2+ detection, respectively. For CIN3+ detection, pooled sensitivity and specificity were 0.78 (CI 95% 0.74-0.82) and 0.74 (CI 95% 0.69-0.78), respectively. For pooled prevalence, PPV for CIN2+ and CIN3+ detection were 0.514 and 0.392, respectively. Furthermore, NPV for CIN2+ and CIN3+ detection were 0.857 and 0.938, respectively.
CONCLUSIONS
This meta-analysis confirmed the great potential of DNA methylation-based biomarkers as triage tool for hrHPV-positive women in cervical cancer screening. Standardization and improved validation are, however, required. Nevertheless, these markers might represent an excellent alternative to cytology and genotyping for colposcopy referral of hrHPV-positive women, allowing for more cost-effective screening programs.
Topics: Female; Humans; Pregnancy; Uterine Cervical Neoplasms; DNA Methylation; Early Detection of Cancer; Colposcopy; Triage; Papillomavirus Infections; Referral and Consultation; Papillomaviridae; Cell Adhesion Molecule-1
PubMed: 37533074
DOI: 10.1186/s13148-023-01537-2 -
Medical Journal of the Islamic Republic... 2023Pregnant women who have gestational diabetes mellitus (GDM) are more prone to adverse pregnancy outcomes. We estimated the prevalence of GDM in Iran. (Review)
Review
BACKGROUND
Pregnant women who have gestational diabetes mellitus (GDM) are more prone to adverse pregnancy outcomes. We estimated the prevalence of GDM in Iran.
METHODS
Web of Science, Scopus, PubMed, Google Scholar, and Persian databases (SID, Magiran, Irandoc, and) were searched using the MeSH and non-MeSH terms in abstract, title, or keywords of articles until June 2021, with no limitation in time. Random effects models were applied to summarize the GDM prevalence in Iran. The obtained data were quantitatively analyzed to determine an effect size for each paper. The pooled effect size was introduced as prevalence and 95% confidence interval. Sensitivity analyses and subgroup analyses were done to determine heterogeneity. Publication bias was assessed by the classic fail-safe N and Egger test.
RESULTS
A total of 53 papers were considered for meta-analysis, involving 56,521 Iranians. The total GDM prevalence in Iran was 7.6% (95% CI, 6.1%-9.4%).
CONCLUSION
This meta-analysis was the newest to estimate the GDM prevalence among Iranian women. Our results suggest a high prevalence of GDM in Iran, showing that Iran might have many GDM patients.
PubMed: 38021388
DOI: 10.47176/mjiri.37.83 -
Journal of Pregnancy 2023Pastoralist communities rely on their livestock for at least 50% of their food supply and source of income. Home births raise the risk of maternal morbidity and death,... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Pastoralist communities rely on their livestock for at least 50% of their food supply and source of income. Home births raise the risk of maternal morbidity and death, whereas institutional births lessen the likelihood of difficulties during labor. Around 70% of labors in pastoralist regions of Ethiopia were assisted by traditional birth attendants.
METHODS
Studies done from January 2004 to January 2023, accessed in PubMed, EMBASE, Medline, and other search engines, were included. PRISMA guidelines and JBI critical appraisal checklist were used to assure the quality of the review. Ten articles were included in this review. Data were extracted with Excel and exported to STATA 16 for analysis. Heterogeneity of literatures was evaluated using statistics and publication bias using the Egger regression asymmetry test and the Duval and Tweedie trim-fill analysis. Statistical significance was declared at value less than 0.05.
RESULT
The pooled estimate of institutional delivery among the pastoralist community in Ethiopia is 21.2% (95% CI: 16.2-26.1). Husbands who were involved to decide place of delivery (OR = 3.47; 95% CI: 1.61, 7.50), women with good knowledge of MCH services (OR = 2.283; 95% CI: 1.51, 3.44), women who had a positive attitude towards MCH services (OR = 1.69; 95% CI: 0.79, 3.6), availability of health institutions (OR = 2.6; 95% CI: 0.95, 7.20), and women who had an ANC follow-up (OR = 2.78; 95% CI: 2.07, 3.73) were higher institutional delivery prevalence among pastoralist women. Moreover, institutional delivery among women who were educated above the college level was more than two times (OR = 2.56; 95% CI: 1.985, 3.304) higher than among women who were not educated.
CONCLUSION
Pastoralist women in Ethiopia were found to be a disadvantaged group for institutional delivery at national level. Husband involvement, educational level, ANC visit, knowledge and attitude for MCH service, and health facility distance were identified to have significant association with institutional delivery.
Topics: Pregnancy; Female; Humans; Maternal Health Services; Delivery, Obstetric; Ethiopia; Midwifery; Health Facilities; Prenatal Care
PubMed: 38026544
DOI: 10.1155/2023/2634610 -
BMC Medicine Dec 2023Sample self-collection for reproductive tract infection diagnosis has been found to offer greater convenience, privacy, autonomy, and expanded access to testing in... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Sample self-collection for reproductive tract infection diagnosis has been found to offer greater convenience, privacy, autonomy, and expanded access to testing in non-pregnant adults. This review aimed to determine whether sample self-collection is as accurate as provider-collection for detection of group B streptococcus colonisation in pregnancy and whether a strategy of self-collection compared to provider-collection might improve maternal and neonatal health outcomes.
METHODS
We searched CINAHL Plus, Medline, EMBASE, Maternity and Infant Care Database, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews in June 2022. Eligible studies compared self-collected and provider-collected samples taken from the same participants or participants randomised to either self-collection or provider-collection for reproductive tract infection testing using the same test and testing method in pregnant individuals. We included trials and observational studies. Reviewers assessed risk of bias using the QUADAS-2 checklist and independently extracted data. Sensitivity and specificity for group B streptococcus colonisation of self-collected compared to provider-collected samples were pooled using a bivariate, random-effects, meta-analytic model. This review was registered with PROSPERO (CRD42023396573).
RESULTS
The search identified 5909 references, of which eleven diagnostic accuracy group B streptococcus studies were included (n = 3269 participants). No studies assessed the effects of self-collection in pregnancy on health outcomes. All studies had high or unclear risk of bias. Pooled sensitivities of self-collected samples for group B streptococcus detection were 82% (95% CI: 66-91%; I = 68.85%) in four trials (n = 1226) and 91% (95% CI: 83-96%; I = 37.38%) in seven non-randomised studies (n = 2043). Pooled specificities were 99% (95% CI: 98-99%; I = 12.08%) and 97% (95% CI: 94-99%; I = 72.50%), respectively.
CONCLUSIONS
Self-collected samples for group B streptococcus detection in pregnancy had high specificity compared to provider-collection, but lower sensitivity, particularly for included trials. Studies investigating the effect of self-collection on health outcomes, and further higher quality trials comparing accuracy of self-collection to provider-collection, are required.
Topics: Infant, Newborn; Adult; Pregnancy; Female; Humans; Reproductive Tract Infections; Streptococcus
PubMed: 38110910
DOI: 10.1186/s12916-023-03186-x -
BMJ Open Dec 2023Interpregnancy weight change may impact two important adverse perinatal outcomes: stillbirth and infant mortality. This systematic review aims to synthesise the existing... (Meta-Analysis)
Meta-Analysis
INTRODUCTION
Interpregnancy weight change may impact two important adverse perinatal outcomes: stillbirth and infant mortality. This systematic review aims to synthesise the existing evidence on the association between interpregnancy weight change and stillbirth and infant mortality.
METHODS AND ANALYSIS
This systematic review and meta-analysis will be conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses Protocols guidelines and has been registered in the International Prospective Register of Systematic Reviews (PROSPERO). A comprehensive literature search of four online databases (Embase, Cochrane Libraries, Web of Science and Medline) will be conducted from inception to October 2023. Observational (longitudinal, cohort, case-control) and randomised controlled trials will be included. Interpregnancy weight/body mass index change between two consecutive pregnancies will be the exposure. The primary outcomes will be the incidence of stillbirth and infant mortality in subsequent pregnancy. The Cochrane Risk of Bias tool will be used to assess the risk of bias in the randomised controlled studies and the Risk of Bias in Non-Randomised Studies of Interventions tool will be used for observational studies. If there are sufficient data, a meta-analysis will be conducted to estimate the pooled effect size. Otherwise, qualitative descriptions of individual studies will be summarised. The heterogeneity will be statistically assessed using a χ test and I statistic.
ETHICS AND DISSEMINATION
Ethics approval is not required for this study as all results will be based on published papers. No primary data collection will be needed. Study findings will be presented at scientific conferences or published in a peer-reviewed scientific journal.
TRIAL REGISTRATION NUMBER
A registration for this review has been submitted to PROSPERO under CRD42020222977.
Topics: Female; Humans; Infant; Pregnancy; Body Mass Index; Infant Mortality; Research Design; Stillbirth
PubMed: 38135309
DOI: 10.1136/bmjopen-2023-080757 -
Revista Brasileira de Ginecologia E... Dec 2023To assess the efficacy, safety, and acceptability of misoprostol in the treatment of incomplete miscarriage. (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To assess the efficacy, safety, and acceptability of misoprostol in the treatment of incomplete miscarriage.
DATA SOURCES
The PubMed, Scopus, Embase, Web of Science, Cochrane Library, and Clinical Trials databases (clinicaltrials.gov) were searched for the relevant articles, and search strategies were developed using a combination of thematic Medical Subject Headings terms and text words. The last search was conducted on July 4, 2022. No language restrictions were applied.
SELECTION OF STUDIES
Randomized clinical trials with patients of gestational age up to 6/7 weeks with a diagnosis of incomplete abortion and who were managed with at least 1 of the 3 types of treatment studied were included. A total of 8,087 studies were screened.
DATA COLLECTION
Data were synthesized using the statistical package Review Manager V.5.1 (The Cochrane Collaboration, Oxford, United Kingdom). For dichotomous outcomes, the odds ratio (OR) and 95% confidence interval (CI) were derived for each study. Heterogeneity between the trial results was evaluated using the standard test, I statistic.
DATA SYNTHESIS
When comparing misoprostol with medical vacuum aspiration (MVA), the rate of complete abortion was higher in the MVA group (OR = 0.16; 95%CI = 0.07-0.36). Hemorrhage or heavy bleeding was more common in the misoprostol group (OR = 3.00; 95%CI = 1.96-4.59), but pain after treatment was more common in patients treated with MVA (OR = 0.65; 95%CI = 0.52-0.80). No statistically significant differences were observed in the general acceptability of the treatments.
CONCLUSION
Misoprostol has been determined as a safe option with good acceptance by patients.
Topics: Pregnancy; Female; Humans; Infant; Misoprostol; Abortion, Incomplete; Abortion, Spontaneous; Pregnancy Trimester, First; Abortion, Induced
PubMed: 38141602
DOI: 10.1055/s-0043-1776029 -
Frontiers in Medicine 2024To systematically review studies on the correlation between sleep duration during pregnancy and gestational diabetes mellitus (GDM) and use meta-analysis to explore the...
OBJECTIVE
To systematically review studies on the correlation between sleep duration during pregnancy and gestational diabetes mellitus (GDM) and use meta-analysis to explore the correlation between the two to provide a basis for preventing GDM during pregnancy.
METHODS
The search databases were China Knowledge Network (CNKI), Weipu, Wanfang, China Biomedical Literature Service System (SinoMed), Cochrane Library, Web of Science, Embase, and PubMed, and the search time was from the establishment of the above databases to July 2023. The data were statistically analyzed using STATA/MP17 and RevMan 5.3 software. Publication bias could be accurately assessed using funnel plots and Egger's test.
RESULTS
A total of 5,197 papers were searched, and 13 studies were finally included, which included 80,259 individuals, including 3,461 patients with GDM. The comprehensive analysis showed that. Based on pooled data from prospective, cross-sectional, and case-control studies, extreme sleep duration during pregnancy was strongly associated with GDM compared with average sleep duration. The results of the prospective studies showed that both short (OR = 1.50, 95% CI: 1.07-2.10, = 60.9%, = 0.02) and long (OR = 1.28, 95% CI: 1.13-1.46, = 0.0%, < 0.0001) sleep duration increased the risk of gestational diabetes mellitus, but the harms were more pronounced with short sleep. In analyzing the association between extreme sleep duration and GDM, publication bias was found in prospective, cross-sectional, and case-control studies with moderate heterogeneity and prospective-only studies with low heterogeneity.
CONCLUSION
Both too short and too long sleep duration during pregnancy are strongly associated with GDM. Either too short or too long sleep duration predicts the risk of developing GDM, but the harms are more pronounced with short sleep. These findings remind us of the importance of controlling sleep duration during pregnancy and help to optimize early strategies to prevent GDM.: http://www.crd.york.ac.uk/prospero, identifier [CRD42023470925].
PubMed: 38737761
DOI: 10.3389/fmed.2024.1337492 -
The Journal of Maternal-fetal &... Dec 2023Multiple factors associated with neural tube defects (NTDs) risk have been identified, yet there is little evidence on the possible effects of maternal stressful life... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVES
Multiple factors associated with neural tube defects (NTDs) risk have been identified, yet there is little evidence on the possible effects of maternal stressful life events. In this study, we aimed to investigate the association between stressful life events during the periconceptional period and risk of NTDs in offspring.
METHODS
Relevant literature was searched in PubMed, Springer Link, ScienceDirect, and Cochrane Library up to July 2023. The pooled odds ratio (OR) and 95% confidence interval (CI) of NTDs risk with maternal stressful life events were estimated using a random effects model. Publication bias was assessed using Egger's regression asymmetry test and Begg's rank correlation test with Begg's funnel plot.
RESULTS
Analysis results showed that mothers who experienced stressful life events during the periconceptional period were at greater risk of having NTDs offspring (OR: 1.37, 95% CI: 1.08-1.73) than those who did not. In subgroup analysis, the pooled OR was 1.37 (1.13-1.67) and 1.73 (0.36-8.32) for with and without adjusting for folic acid supplementation in each included study, while was 1.37 (1.13-1.67) and 1.64 (0.39-6.88) for exposure time of three months preconception until three months post conception and one year preconception until three months post conception, respectively.
CONCLUSIONS
This study suggests that maternal stressful life events during the periconceptional period are significantly associated with higher NTDs risk in offspring. Tailored approaches for evaluating the risk and policy of NTDs among women of childbearing age should emphasize individual stressful experiences before and during early pregnancy.
Topics: Pregnancy; Female; Humans; Neural Tube Defects; Mothers; Fertilization; Odds Ratio; Folic Acid
PubMed: 37946331
DOI: 10.1080/14767058.2023.2279021 -
BMC Pregnancy and Childbirth Mar 2024Pregnancy is one of the most remarkable experiences in a woman's life. Prenatal depression, characterized by stress and worry associated with pregnancy, can reach severe... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Pregnancy is one of the most remarkable experiences in a woman's life. Prenatal depression, characterized by stress and worry associated with pregnancy, can reach severe levels. On a global scale, mental and addictive disorders affect more than one billion people, causing 19% of years lived with disability. It is estimated that 25-35% of pregnant women experience depressive symptoms, with 20% meeting the diagnostic criteria for major depression.
METHODS
A systematic review and meta-analysis were conducted to examine depression during pregnancy in Ethiopia. The search was conducted from March 1-31, 2023. Data extraction used Microsoft Excel, and analysis was performed using STATA version 17. The New Castle-Ottawa Scale quality assessment tool was employed to evaluate the methodological quality of included studies. The Cochrane Q test and I2 statistics were used to assess heterogeneity. A weighted inverse variance random-effects model estimated the pooled level of antenatal depression (APD). Publication bias was detected using a funnel plot and Begg's and Egger's tests.
RESULTS
Out of 350 studies searched, 18 were included in the analysis. The overall pooled prevalence of depression in Ethiopia was 27.85% (95% CI: 23.75-31.96). Harari region reported the highest prevalence (37.44%), while Amhara region had the lowest (23.10%). Factors significantly associated with depression included unplanned pregnancies, low social support, low income, previous history of depression, intimate partner violence, and history of abortion.
CONCLUSION
This systematic review and meta-analysis demonstrate that approximately one-quarter of pregnant women in Ethiopia experience depression during pregnancy. Unplanned pregnancy, low social support, low income, previous history of depression, history of abortion, and intimate partner violence are determinants of depression. To address this high prevalence, the Ethiopian government and stakeholders should develop policies that incorporate counseling during pregnancy follow-ups. Improving the quality of life for pregnant women is crucial for the well-being of families, communities, and the nation as a whole.
Topics: Female; Pregnancy; Humans; Ethiopia; Depression; Quality of Life; Pregnant Women; Abortion, Spontaneous; Prevalence
PubMed: 38532382
DOI: 10.1186/s12884-024-06409-y -
Travel Medicine and Infectious Disease 2023To estimate the global burden of stillbirths among pregnant women with the COVID-19 vaccination. (Review)
Review
OBJECTIVE
To estimate the global burden of stillbirths among pregnant women with the COVID-19 vaccination.
DATA SOURCE
In this systematic review and meta-analysis, a literature search was carried out in PubMed, Cochrane and Scopus until February 4, 2023, with language restriction (English).
STUDY SELECTION
Title-abstract screening followed by full text review was done independently by two authors, based on the research question, "What is the prevalence of stillbirths among the pregnant women vaccinated with COVID-19 vaccines?"
DATA EXTRACTION
Two authors independently extracted the relevant data from every study. The third author resolved the conflicts. This study was registered in PROSPERO and followed the PRISMA guidelines.
DATA ANALYSIS
A Random effects model was applied to assess the pooled estimate of stillbirths. The I test was used to assess the heterogeneity of the articles included in the study. For checking the publication bias, the Doi plot and the contour-enhanced funnel plot were utilized.
RESULTS
The database systematic search yielded 168 articles; 11 of them were determined to be eligible for systematic review and 8 of them ended up being included for meta-analysis. The pooled prevalence of stillbirth in pregnant women vaccinated against COVID-19 infection was 0.00509 (5 per 1000 live births delivered by pregnant women vaccinated against COVID-19 (95% CI: 0.00003-0.01676). Statistically significant heterogeneity was reported across studies (I = 98%; p < 0.01).
CONCLUSIONS
The study concluded that vaccination against COVID-19 among pregnant women had a low stillbirth rate. It adds to the existing evidence that the COVID-19 vaccine is safe and can be taken during pregnancy.
PubMed: 37604305
DOI: 10.1016/j.tmaid.2023.102633