scholarly journals Incidence and trend of preterm birth in China, 1990–2016: a systematic review and meta-analysis

BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e039303
Author(s):  
Shiwen Jing ◽  
Chang Chen ◽  
Yuexin Gan ◽  
Joshua Vogel ◽  
Jun Zhang
Keyword(s):  
Systematic Review ◽  
Preterm Birth ◽  
Birth Rate ◽  
Meta Analysis ◽  
Northwest China ◽  
Cochrane Library ◽  
Case Control Studies ◽  
Eligibility Criteria ◽  
Rate Of Increase ◽  
Preterm Birth Rate

ObjectivesTo update the WHO estimate of preterm birth rate in China in 1990–2016 and to further explore variations by geographic regions and years of occurrence.DesignSystematic review and meta-analysis.Data sourcesPubmed, Embase, Cochrane Library and Sinomed databases were searched from 1990 to 2018.Eligibility criteriaStudies were included if they provided preterm birth data with at least 500 total births. Reviews, case–control studies, intervention studies and studies with insufficient information or published before 1990 were excluded. We estimated pooled incidence of preterm birth by a random effects model, and preterm birth rate in different year, region and by livebirths or all births in subgroup analyses.ResultsOur search identified 3945 records. After the removal of duplicates and screening of titles and abstracts, we reviewed 254 studies in full text and excluded 182, leaving 72 new studies. They were combined with the 82 studies included in the WHO report (154 studies, 187 data sets in total for the meta-analysis), including 24 039 084 births from 1990 to 2016. The pooled incidence of preterm birth in China was 6.09% (95% CI 5.86% to 6.31%) but has been steadily increasing from 5.36% (95% CI 4.89% to 5.84%) in 1990–1994 to 7.04% (95% CI 6.09% to 7.99%) in 2015–2016. The annual rate of increase was about 1.05% (95% CI 0.85% to 1.21%). Northwest China appeared to have the highest preterm birth rate (7.3%, 95% CI 4.92% to 9.68% from 1990 to 2016).ConclusionsThe incidence of preterm birth in China has been rising gradually in the past three decades. It was 7% in 2016. Preterm birth rate varied by region with the West having the highest occurrence.

scholarly journals Does Vitamin D Deficiency in Different Periods of Gestation Have the Same Effect on Preterm Birth? A Systematic Review and Meta-Analysis

2020 ◽  
Author(s):  
bin Yi ◽  
Rui-han Lian ◽  
Ping-an Qi ◽  
Tao Yuan ◽  
Pei-jing Yan ◽  
...  
Keyword(s):  
Systematic Review ◽  
Vitamin D ◽  
Preterm Birth ◽  
Vitamin D Deficiency ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Second Trimester ◽  
Case Control Studies ◽  
Cross Sectional ◽  
Vitamin D Levels

Abstract Background: Current studies suggest that vitamin D deficiency during pregnancy can produce a certain effect for preterm birth, but there is no research showing whether vitamin D deficiency has a consistent effect in different pregnancies; thus, we conducted a systematic review and meta-analysis of 24 observational studies, grouping them according to the gestational age at the time of serum sampling, to investigate whether vitamin D deficiency in different periods of gestation has different effects on preterm birth and to provide an evidence-based basis for pregnant women to measure and supplement vitamin D. Methods: The databases PubMed-Medline, EMBASE, the Cochrane Library, Web of Science, EBSCO, CBM, and CNKI were searched until July 2019. Two researchers independently assessed the eligibility and quality of studies, and STATA 12.0 software was used for meta-analysis. Result: Seven cohort studies, 13 case-control studies, and four cross-sectional studies were included from 2500 articles by inclusion and exclusion criteria. After adjusting for age, race, and other confounding factors, meta-analysis results showed that vitamin D deficiency in the first trimester, the second trimester and the third trimester did not increase the risk of preterm birth (odds ratio (OR) = 1.01, 95% confidence interval (CI) (0.88, 1.16), P = 0.867; OR = 1.12, 95%CI (0.92, 1.37), P = 0.249; OR = 1.05, 95%CI (0.87, 1.27), P = 0.602). However, there was moderate heterogeneity in the study of vitamin D deficiency in the second trimester, and subgroup analysis suggested that vitamin D deficiency in the second trimester may increase the risk of preterm birth (OR = 1.33, 95%CI (1.15, 1.54), P = 0.000). A sensitivity analysis of the second trimester showed that excluding any one study did not significantly change the results. Conclusions: Vitamin D deficiency in early and late pregnancy may not be associated with preterm birth, while vitamin D deficiency in middle pregnancy is likely to have an important effect on preterm birth. Vitamin D levels should be measured in the second trimester of pregnancy, and vitamin D supplements should be provided if necessary.

scholarly journals Running and Knee Osteoarthritis: A Systematic Review and Meta-analysis

2016 ◽  
Vol 45 (6) ◽  
pp. 1447-1457 ◽  
Author(s):  
Kate A. Timmins ◽  
Richard D. Leech ◽  
Mark E. Batt ◽  
Kimberley L. Edwards
Keyword(s):  
Systematic Review ◽  
Full Text ◽  
Meta Analysis ◽  
Positive Association ◽  
Case Control ◽  
Case Control Studies ◽  
Eligibility Criteria ◽  
Knee Oa ◽  
Knee Joint Surgery ◽  
Newcastle Ottawa Scale

Background: Osteoarthritis (OA) is a chronic condition characterized by pain, impaired function, and reduced quality of life. A number of risk factors for knee OA have been identified, such as obesity, occupation, and injury. The association between knee OA and physical activity or particular sports such as running is less clear. Previous reviews, and the evidence that informs them, present contradictory or inconclusive findings. Purpose: This systematic review aimed to determine the association between running and the development of knee OA. Study Design: Systematic review and meta-analysis. Methods: Four electronic databases were searched, along with citations in eligible articles and reviews and the contents of recent journal issues. Two reviewers independently screened the titles and abstracts using prespecified eligibility criteria. Full-text articles were also independently assessed for eligibility. Eligible studies were those in which running or running-related sports (eg, triathlon or orienteering) were assessed as a risk factor for the onset or progression of knee OA in adults. Relevant outcomes included (1) diagnosis of knee OA, (2) radiographic markers of knee OA, (3) knee joint surgery for OA, (4) knee pain, and (5) knee-associated disability. Risk of bias was judged by use of the Newcastle-Ottawa scale. A random-effects meta-analysis was performed with case-control studies investigating arthroplasty. Results: After de-duplication, the search returned 1322 records. Of these, 153 full-text articles were assessed; 25 were eligible, describing 15 studies: 11 cohort (6 retrospective) and 4 case-control studies. Findings of studies with a diagnostic OA outcome were mixed. Some radiographic differences were observed in runners, but only at baseline within some subgroups. Meta-analysis suggested a protective effect of running against surgery due to OA: pooled odds ratio 0.46 (95% CI, 0.30-0.71). The I2 was 0% (95% CI, 0%-73%). Evidence relating to symptomatic outcomes was sparse and inconclusive. Conclusion: With this evidence, it is not possible to determine the role of running in knee OA. Moderate- to low-quality evidence suggests no association with OA diagnosis, a positive association with OA diagnosis, and a negative association with knee OA surgery. Conflicting results may reflect methodological heterogeneity. More evidence from well-designed, prospective studies is needed to clarify the contradictions.

scholarly journals Diagnostic Value of TLE1 in Synovial Sarcoma: A Systematic Review and Meta-Analysis

Sarcoma ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-6 ◽  
Author(s):  
Marc El Beaino ◽  
Daniel C. Jupiter ◽  
Tarek Assi ◽  
Elie Rassy ◽  
Alexander J. Lazar ◽  
...  
Keyword(s):  
Systematic Review ◽  
Synovial Sarcoma ◽  
Predictive Value ◽  
Meta Analysis ◽  
Diagnostic Value ◽  
Cochrane Library ◽  
Specific Marker ◽  
Eligibility Criteria ◽  
Depth Analysis ◽  
The Mean

Background. Synovial sarcoma can present morphologically in multiple forms, including biphasic and monophasic subtypes. As a result, the histological diagnosis can sometimes be challenging. Transducin-Like Enhancer 1 (TLE1) is a transcriptional corepressor that normally is involved in embryogenesis and hematopoiesis but is also expressed in certain tumors. This systematic review examines the potential role of TLE1 as a diagnostic biomarker for the synovial sarcoma. Materials and Methods. A literature review and meta-analysis were conducted using the electronic databases Pubmed, the Cochrane Library, and Google Scholar. Thirteen studies met our eligibility criteria and were selected for in-depth analysis. Results. The mean sensitivity and specificity of TLE1 in detecting synovial sarcoma were 94% (95% CI 91%–97%) and 81% (95% CI 72%–91%), respectively, when all studies were aggregated together. The mean positive predictive value (PPV) of TLE1 was 75% (95% CI 62%–87%), whereas the negative predictive value (NPV) was 96% (95% CI 93%–98%). Conclusion. TLE1 is a sensitive and specific marker for synovial sarcoma that can aid in its diagnosis. Due to its involvement in several relevant signaling pathways, TLE1 might have direct relevance to the pathophysiology of the disease.

scholarly journals Neighbourhood socioeconomic status and overweight/obesity: a systematic review and meta-analysis of epidemiological studies

BMJ Open ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. e028238 ◽  
Author(s):  
Shimels Hussien Mohammed ◽  
Tesfa Dejenie Habtewold ◽  
Mulugeta Molla Birhanu ◽  
Tesfamichael Awoke Sissay ◽  
Balewgizie Sileshi Tegegne ◽  
...  
Keyword(s):  
Systematic Review ◽  
Socioeconomic Status ◽  
Observational Studies ◽  
Data Extraction ◽  
Meta Analysis ◽  
Epidemiological Studies ◽  
Cochrane Library ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Neighbourhood Socioeconomic Status

ObjectiveLow neighbourhood socioeconomic status (NSES) has been linked to a higher risk of overweight/obesity, irrespective of the individual’s own socioeconomic status. No meta-analysis study has been done on the association. Thus, this study was done to synthesise the existing evidence on the association of NSES with overweight, obesity and body mass index (BMI).DesignSystematic review and meta-analysis.Data sourcesPubMed, Embase, Scopus, Cochrane Library, Web of Sciences and Google Scholar databases were searched for articles published until 25 September 2019.Eligibility criteriaEpidemiological studies, both longitudinal and cross-sectional ones, which examined the link of NSES to overweight, obesity or BMI, were included.Data extraction and synthesisData extraction was done by two reviewers, working independently. The methodological quality of included studies was assessed using the Newcastle-Ottawa Scale for the observational studies. The summary estimates of the relationships of NSES with overweight, obesity and BMI statuses were calculated with random-effects meta-analysis models. Heterogeneity was assessed by Cochran’s Q and I2 statistics. Subgroup analyses were done by age categories, continents, study designs and NSES measures. Publication bias was assessed by visual inspection of funnel plots and Egger’s regression test.ResultA total of 21 observational studies, covering 1 244 438 individuals, were included in this meta-analysis. Low NSES, compared with high NSES, was found to be associated with a 31% higher odds of overweight (pooled OR 1.31, 95% CI 1.16 to 1.47, p<0.001), a 45% higher odds of obesity (pooled OR 1.45, 95% CI 1.21 to 1.74, p<0.001) and a 1.09 kg/m2 increase in mean BMI (pooled beta=1.09, 95% CI 0.67 to 1.50, p<0.001).ConclusionNSES disparity might be contributing to the burden of overweight/obesity. Further studies are warranted, including whether addressing NSES disparity could reduce the risk of overweight/obesity.PROSPERO registration numberCRD42017063889

scholarly journals Association between sepsis and retinopathy of prematurity: a systematic review and meta-analysis

BMJ Open ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. e025440 ◽  
Author(s):  
Xiaofen Wang ◽  
Kun Tang ◽  
Ling Chen ◽  
Sixiang Cheng ◽  
Huilan Xu
Keyword(s):  
Systematic Review ◽  
Cohort Studies ◽  
Premature Infants ◽  
Retinopathy Of Prematurity ◽  
Data Extraction ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Case Control Studies ◽  
Severe Stage

ObjectiveTo explore the association between sepsis and retinopathy of prematurity (ROP) in premature infants.DesignA systematic review and meta-analysis.Data sourcesWe performed a systematic search of PubMed, the Cochrane Library and Embase from 1 January, 2000, to 1 January, 2018, with no language restrictions and reported the relationship between sepsis and ROP.Eligibility criteriaOriginal observational studies, including cohort studies and case-control studies.Data extraction and synthesisTwo reviewers independently completed the study selection and data extraction. The OR and corresponding 95% CI were used to measure the risk of sepsis in patients with ROP. The heterogeneity between studies was evaluated using Cochran’s Q test and the I2statistic. The Newcastle-Ottawa Scale was adopted to evaluate the quality of each of the included studies, and the Grading of Recommendations Assessment, Development and Evaluation approach was used to assess the quality of the evidence.ResultsSixteen studies with a total sample size of 12 466 premature infants and 2494 cases of ROP were included in this meta-analysis. Adjusted analysis showed that sepsis was closely related to any stage of ROP (OR = 1.57, 95% CI 1.31 to 1.89) and severe stage of ROP (OR = 2.33, 95% CI 1.21 to 4.51) in premature infants, with 56.3% and 81.8% heterogeneity, respectively. Subgroup analyses showed that heterogeneity was obvious in prospective cohort studies (I2= 62.1%, p<0.001). In a sensitivity analysis, we found that removing any single study did not significantly change the overall effect value. The quality of the evidence was rated as low for both any stage of ROP and severe stage of ROP.ConclusionsSepsis increases the risk of ROP in preterm infants. However, considering that all included studies are observational and causality can rarely be established, additional evidence is needed to substantiate this finding and provide advice for practice.

scholarly journals 17-Alpha-Hydroxyprogesterone vs. Placebo for Preventing of Recurrent Preterm Birth: A Systematic Review and Meta-Analysis of Randomized Trials

2021 ◽  
Vol 8 ◽  
Author(s):  
Abdulaali R. Almutairi ◽  
Hadir I. Aljohani ◽  
Nouf S. Al-fadel
Keyword(s):  
Systematic Review ◽  
Preterm Birth ◽  
Meta Analysis ◽  
Neonatal Morbidity ◽  
Neonatal Outcomes ◽  
Morbidity And Mortality ◽  
Cochrane Library ◽  
Relative Risk Ratio ◽  
Analysis Model ◽  
Clinical Trial Registries

Background: Preterm birth (PTB) is a leading cause of neonatal morbidity and mortality.Objective: To estimate the effect of 17-alpha-hydroxyprogesterone caproate (17-OHPC) compared to placebo in singleton gestations for reducing the risk of recurrent PTB and neonatal morbidity and mortality.Work Design: Systematic review and meta-analysis.Search Strategy: Searching MEDLINE, Embase, Web of Science, SCOPUS, Cochrane Library, and clinical trial registries.Selection Criteria: Randomized controlled trials of singleton gestations with a history of PTB and treated with a weekly intramuscular injection of 17-OHPC or placebo.Data Collection and Analysis: A random meta-analysis model was performed for the PTB outcomes (&lt;32, &lt;35, and &lt;37 weeks) and neonatal outcomes (neonatal death, grade 3 or 4 intraventricular hemorrhage, respiratory distress syndrome, bronchopulmonary dysplasia, necrotizing enterocolitis, and sepsis). Effect estimates were measured by relative risk ratio (RR) with a 95% confidence interval (CI).Main Results: Six works were included. There were no statistically significant reductions in the PTB risk following the use of 17-OHPC at &lt;32 weeks (RR = 0.61, 95% CI: 0.13–2.77, and I2 = 39%), &lt;35weeks (RR = 0.60, 95% CI: 0.10–3.67, and I2 = 51%), and &lt;37 weeks (RR = 0.68, 95% CI: 0.46–1, and I2 = 75%). Furthermore, all the neonatal outcomes were statistically similar between the two groups.Conclusion: Treatment with 17-OHPC is not associated with reducing the risk of PTB or neonatal outcomes compared to placebo.

scholarly journals Pulmonary Nocardiosis in Suspected Tuberculosis Patients: A Systematic Review and Meta-Analysis of Cross-Sectional Studies

2020 ◽  
Vol 30 (2) ◽  
Author(s):  
Susan Mansuri Mehrabadi ◽  
Mina Taraghian ◽  
Aliyar Pirouzi ◽  
Azad Khaledi ◽  
Alireza Neshani ◽  
...  
Keyword(s):  
Systematic Review ◽  
Pulmonary Tuberculosis ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Medical Subject Headings ◽  
Eligibility Criteria ◽  
Cross Sectional ◽  
Pulmonary Nocardiosis ◽  
Suspected Tuberculosis ◽  
Cross Sectional Studies

BACKGROUND: nocardiosis is an opportunistic infectious disease in immunocompromised patients. The most common form of nocardiosis infection in humans is pulmonary nocrdiosis caused by inhaling Nocardia species from the environment. Thus, this study aimed to evaluate the pulmonary nocardiosis in patients with suspected tuberculosis using systematic review and meta-analysis.METHODS: We conducted a systematic search for cross-sectional studies focused on the pulmonary nocardiosis among patients with pulmonary tuberculosis based on the Preferred Reporting Items for Systematic reviews and Meta-analysis (PRISMA) published from January 2001 to October 2019. The search was conducted in MEDLINE/PubMed, Web of Science, Scopus, Cochrane Library, Google Scholar, Science Direct databases, and Iranian databases. Medical subject headings (MeSH) and text words were searched: “pulmonary nocardiosis”, “nocardiosis”, OR “nocardial infection”, “pulmonary nocardial infections/agents”, AND “pulmonary tuberculosis”, OR “pulmonary TB”, AND “Iran”. Two of the reviewers enrolled independently articles published in English and Persian languages according to the inclusion and the exclusion criteria. Comprehensive Meta-Analysis software (Version 3.3.070) was used for meta-analysis.RESULTS: Only 4 studies met the eligibility criteria. The pulmonary nocardiosis prevalence varied from 1.7% to 6.7%. The combined prevalence of nocardiosis among patients with suspected pulmonary tuberculosis in Iran was 4.8% (95% CI: 3-7.3, Q=5.8, Z=12.7). No heterogeneity was observed between studies because I2 was 48.3. N. cyriacigeorgica and N. asteroides were reported as the prevalent isolates, respectively.CONCLUSIONS: This review showed in patients suspected TB when they were negative in all diagnosis laboratory tests, nocardiosis cases which be considered.

scholarly journals Predicting future self-harm or suicide in adolescents: a systematic review of risk assessment scales/tools

BMJ Open ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. e029311 ◽  
Author(s):  
Isobel Marion Harris ◽  
Sophie Beese ◽  
David Moore
Keyword(s):  
Systematic Review ◽  
Risk Assessment ◽  
Data Extraction ◽  
Meta Analysis ◽  
Predictive Ability ◽  
Risk Of Bias ◽  
Assessment Tools ◽  
Case Control Studies ◽  
Eligibility Criteria ◽  
Self Harm

ObjectiveThis systematic review aimed to evaluate the ability of risk tools to predict the future episodes of suicide/self-harm in adolescents.DesignSystematic review.Data sourcesMEDLINE, EMBASE, CINAHL and PsycINFO were searched from inception to 3 March 2018.Eligibility criteria for selecting studiesCohort studies, case–control studies and randomised controlled trials of adolescents aged 10–25 who had undergone risk assessment in a clinical setting following an episode of self-harm were included.Data extraction and synthesisTwo independent reviewers extracted data and assessed risk of bias. Data were grouped by tool and narrative synthesis undertaken, with studies appraised using a checklist combining the QUIPS (Quality In Prognosis Studies) and QUADAS-2 (Quality Assessment of Diagnostic Accuracy Studies) tools.ResultsOf the 17 137 articles initially identified, 11 studies evaluating 10 separate tools were included. The studies varied in setting, population and outcome measure. The majority of the studies were rated as having an unclear risk of bias, and meta-analysis was not possible due to high variability between studies.The ability of the tools to correctly identify those adolescents going on to make a self-harm/suicide attempt ranged from 27% (95% CI 10.7% to 50.2%) to 95.8% (95% CI 78.9% to 99.9%). A variety of metrics were provided for 1–10 points increases in various tools, for example, odds and HRs.ConclusionsThis systematic review is the first to explore the use of assessment tools in adolescents. The predictive ability of these tools varies greatly. No single tool is suitable for predicting a higher risk of suicide or self-harm in adolescent populations.PROSPERO registration numberCRD42017058686

scholarly journals Effectiveness of interventions for the prevention of occupational violence against professionals in health services: a protocol for a systematic review

BMJ Open ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. e036558
Author(s):  
Caroline Vieira Cláudio Okubo ◽  
Renata Cristina Campos Pereira Silveira ◽  
Maria José Quina Galdino ◽  
Daiane Rubinato Fernandes ◽  
Aline Aparecida Oliveira Moreira ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Grey Literature ◽  
Cochrane Review ◽  
Health Sector ◽  
Risk Of Bias ◽  
Cochrane Library ◽  
Eligibility Criteria ◽  
Occupational Violence

IntroductionOccupational violence affects several categories of workers; however, the health sector category has been considered at a high risk, exposing workers to physical and psychological abuse. Thus, occupational violence has decreased the quality of care in health service. This review aims to evaluate the effectiveness of interventions for the prevention and reduction of occupational violence against health professionals.Methods and analysisThis protocol is consistent with the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols. Searches will be conducted in PubMed, Embase, Cochrane Library, LILACS, Web of Science, Scopus, CINAHL and LIVIVO along with a comprehensive review of grey literature. The search will be conducted on August 1 st 2020, without language and time restrictions. Following the eligibility criteria, two independent reviewers will select the titles and abstracts and subsequently screen the full articles. If necessary, a third reviewer will assess any disagreements. All references will be imported into EndNote, and any duplicates will be removed. The data will be extracted using an extraction-based form from Cochrane. Statistical analyses will be performed using the software Cochrane Review Manager, and a meta-analysis will be performed if possible for the statistical combination of at least two studies. The risk of bias of the randomised clinical trials will be evaluated by the Risk of Bias tool from Cochrane, and the risk of bias of the non-randomised intervention studies will be evaluated using the Downs and Black scale. The quality of the evidence and strength of the classification recommendations will be assessed by the Grading of Recommendations, Assessment, Development and Evaluation.Ethics and disseminationThis review will not evaluate individual patient information and therefore does not require ethical approval. The results will be disseminated through publications in peer-reviewed journals, presentations at conferences and the doctoral thesis of the leading author.PROSPERO registration numberCRD42018111383.

The influence of disease activity on pregnancy outcomes in women with inflammatory bowel disease: A systematic review and meta-analysis

2020 ◽  
Author(s):  
Min-A Kim ◽  
Young-Han Kim ◽  
Jaeyoung Chun ◽  
Hye Sun Lee ◽  
Soo Jung Park ◽  
...  
Keyword(s):  
Systematic Review ◽  
Preterm Birth ◽  
Disease Activity ◽  
Spontaneous Abortion ◽  
Pregnancy Outcomes ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Increased Risk ◽  
Adverse Pregnancy ◽  
The Impact

Abstract Background & Aims Robust evidence regarding the impact of disease activity on pregnancy outcomes in women with IBD is crucial for both clinicians and patients in preparing a birth plan. We sought to perform a systematic review and meta-analysis to assess the pooled influences of disease activity on pregnancy outcomes in women with IBD. Methods We searched MEDLINE, EMBASE, and COCHRANE library to identify articles comparing pregnancy outcomes between active and inactive IBD at the time of conception or during pregnancy. A meta-analysis was performed using a random-effects model to pool estimates and report odds ratios (ORs). Results A total of 28 studies were identified as eligible for the meta-analysis. In women with active IBD, the pooled ORs for low birth weight (LBW), preterm birth, small for gestational age (SGA), spontaneous abortion, and stillbirths were 3.81 (95% confidence interval [CI] 1.81-8.02), 2.42 (95% CI 1.74-3.35), 1.48 (95% CI 1.19-1.85), 1.87 (95% CI 1.17-3.0), and 2.27 (95% CI 1.03-5.04) compared to women with inactive IBD, respectively. In the subgroup analysis based on disease type, women with active ulcerative colitis had an increased risk of LBW, preterm birth, and spontaneous abortion. Women with active Crohn’s disease had a higher risk of preterm birth, SGA, and spontaneous abortion. Conclusions Active IBD during the periconception period and pregnancy is associated with increased risk of adverse pregnancy outcomes. Our data suggest that pregnancy should be planned when the disease is quiescent, and continuous disease control is important even during pregnancy.

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