The association between labor induction and autism spectrum disorders among children: a meta-analysis

2021 ◽  
Vol 17 ◽  
Author(s):  
Saeid Bashirian ◽  
Mahdieh Seyedi ◽  
Katayoon Razjouyan ◽  
Ensiyeh Jenabi
Keyword(s):  
Negative Impact ◽  
Meta Analysis ◽  
Random Effect ◽  
Autism Spectrum ◽  
Labor Induction ◽  
Case Control Studies ◽  
Increased Risk ◽  
Significant Negative Impact ◽  
Spectrum Disorders

Background: There was a hypothesis that the oxytocin used during labor could increase the risk of neurodevelopmental disorders, such as ASD. Objective: This meta-analysis pooled all observational studies to obtain the association between labor induction and the risk of ASD among children. We identified all published studies up to August 2020 through PubMed, Scopus, Web of Science and gray literature. The pooled odds ratios (OR), relative ratio (RR) and 95% confidence intervals (CI (were calculated as random effect estimates of association among studies. Results: The pooled estimates of OR and RR reported a significant association between labor induction and ASD among children, respectively (OR = 1.09, 95% CI = 1.04 to 1.15) and (RR = 1.06, 95% CI = 1.02 to 1.09). The subgroup analyses were performed based on the adjusted form and design of studies. OR in crude and adjusted studies were reported 1.25(1.01, 1.49) and 1.08(1.02, 1.14), respectively. A significant association was found in adjusted and crude studies. But there is no significant association between labor induction and ASD in case-control studies (OR=1.08, 95% CI = 0.99, 1.17). Conclusion: The findings showed that labor induction is associated with increased risk of ASD among children. Therefore, the findings support that clinical use of oxytocin during labor has a significant negative impact on the long-term mental health of children.

scholarly journals ASSOCIATION OF IL-8 -251T>A (RS4073) POLYMORPHISM WITH SUSCEPTIBILITY TO GASTRIC CANCER: A SYSTEMATIC REVIEW AND META-ANALYSIS BASED ON 33 CASE-CONTROL STUDIES

2020 ◽  
Vol 57 (1) ◽  
pp. 91-99
Author(s):  
Mansour MOGHIMI ◽  
Seyed Alireza DASTGHEIB ◽  
Naeimeh HEIRANIZADEH ◽  
Mohammad ZARE ◽  
Elnaz SHEIKHPOUR ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Case Control ◽  
Case Control Studies ◽  
Effect Model ◽  
Increased Risk ◽  
Mixed Populations ◽  
Stratified Analysis

ABSTRACT BACKGROUND: The role of -251A>T polymorphism in the anti-inflammatory cytokine interleukin-8 (IL-8) gene in gastric cancer was intensively evaluated, but the results of these studies were inconsistent. OBJECTIVE: Therefore, we performed a meta-analysis to provide a comprehensive data on the association of IL-8 -251T>A polymorphism with gastric cancer. METHODS: All eligible studies were identified in PubMed, Web of Science, EMBASE, Wanfang and CNKI databases before September 01, 2019. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were derived from a fixed effect or random effect model. RESULTS: A total of 33 case-control studies with 6,192 cases and 9,567 controls were selected. Overall, pooled data showed that IL-8 -251T>A polymorphism was significantly associated with an increased risk of gastric cancer under all five genetic models, i.e., allele (A vs T: OR=1.189, 95% CI 1.027-1.378, P=0.021), homozygote (AA vs TT: OR=1.307, 95% CI 1.111-1.536, P=0.001), heterozygote (AT vs TT: OR=1.188, 95% CI 1.061-1.330, P=0.003), dominant (AA+AT vs TT: OR=1.337, 95% CI 1.115-1.602, P=0.002) and recessive (AA vs AT+TT: OR=1.241, 95% CI 1.045-1.474, P=0.014). The stratified analysis by ethnicity revealed an increased risk of gastric cancer in Asians and mixed populations, but not in Caucasians. Moreover, stratified by country found a significant association in Chinese, Korean and Brazilian, but not among Japanese. CONCLUSION: This meta-analysis suggests that the IL-8 -251T>A polymorphism is associated with an increased risk of gastric cancer, especially by ethnicity (Asian and mixed populations) and country (Chinese, Korean and Brazilian).

scholarly journals The correlation between methylenetetrahydrofolate reductase gene 677C > T polymorphism and fetal congenital defects: A meta-analysis

Pteridines ◽  
2020 ◽  
Vol 31 (1) ◽  
pp. 9-17
Author(s):  
Dexia Li ◽  
Enxia Wang ◽  
Xia Gao ◽  
Ping Li
Keyword(s):  
Single Nucleotide Polymorphism ◽  
Publication Bias ◽  
Methylenetetrahydrofolate Reductase ◽  
Meta Analysis ◽  
Random Effect ◽  
Congenital Defects ◽  
Nucleotide Polymorphism ◽  
Case Control Studies ◽  
Single Nucleotide ◽  
Increased Risk

AbstractObjective To investigate the correlation between the methylenetetrahydrofolate reductase (MTHFR) gene 677C> T polymorphism and fetal congenital defects.Method Original studies relevant to the MTHFR gene 677C>T single nucleotide polymorphism and fetal congenital defects were systematically searched in the electronic databases of Medline, EMBSE and China National Knowledge Infrastructure (CNKI). All relevant publications were screened for inclusion in the present work. The correlation between the MTHFR gene 677C > T single nucleotide polymorphism and the occurrence of fetal congenital defects was expressed as an odds ratio (OR) and its 95% confidence interval (95% CI). Publication bias was assessed by Begg’s funnel plot and Egger’s line regression test.Results Nineteen case-control studies were ultimately included in the present meta-analysis. The pooled results indicated that the general risk of fetal congenital defects was significantly elevated in subjects with the 677T allele of the MTHFR gene in dominant (OR=1.07,95%CI:1.03-1.12, P<0.05), homozygous (OR=1.17,95%CI:1.06-1.30, P<0.05) and recessive genetic models (OR=1.16,95%CI:1.03-1.31, P<0.05) through the random effect method. However, significant publication bias was identified upon pooling the individual data and evaluating the correlation.Conclusion According to the present evidence, the MTHFR gene 677C>T single nucleotide polymorphism is correlated with poor pregnancy outcomes, and subjects with the T allele have an increased risk of developing general fetal congenital defects.

scholarly journals Autism spectrum disorders: weighing the risk of SSRI exposure in pregnancy

2014 ◽  
Vol 23 (3) ◽  
pp. 231-233 ◽  
Author(s):  
G. Ostuzzi ◽  
C. Barbui
Keyword(s):  
Autism Spectrum Disorders ◽  
Selective Serotonin Reuptake Inhibitors ◽  
Autism Spectrum ◽  
Case Control Studies ◽  
Confounding By Indication ◽  
Increased Risk ◽  
Exposure During Pregnancy ◽  
Spectrum Disorders ◽  
Development Outcomes ◽  
Recent Cohort

A possible link between prenatal exposure to the selective serotonin reuptake inhibitors (SSRIs) and development of autism spectrum disorders (ASDs), previously suggested by two case-control studies, was not confirmed by a recent cohort study that followed for 5–10 years more than 600,000 births. However, this study failed to demonstrate that SSRI exposure during pregnancy is safe in terms of child development outcomes, as an increased risk of ASDs cannot be completely ruled out. In the present article, the main strengths and weaknesses of this study are briefly analysed, including a possibility of confounding by indication.

scholarly journals Prenatal maternal stress and risk of neurodevelopmental disorders in the offspring: A systematic review and meta-analysis protocol

2019 ◽  
Vol 1 ◽  
pp. 15 ◽  
Author(s):  
Nicla Manzari ◽  
Karen Matvienko-Sikar ◽  
Franco Baldoni ◽  
Gerard W. O'Keeffe ◽  
Ali S. Khashan
Keyword(s):  
Systematic Review ◽  
Maternal Stress ◽  
Data Extraction ◽  
Meta Analysis ◽  
Autism Spectrum ◽  
Prenatal Maternal Stress ◽  
Case Control Studies ◽  
Increased Risk ◽  
Meta Analyses ◽  
The Impact

Background: Prenatal maternal stress (PNMS) is defined as the experience of significant levels of prenatal stress, depression or anxiety during pregnancy. PNMS has been associated with increased risk of autism spectrum disorder (ASD) and attention-deficit hyperactivity disorder (ADHD) in exposed offspring. However, these findings are inconsistent and other studies found no association, meaning a clear consensus on the impact of PNMS on ASD and ADHD risk is required. The purpose of this systematic review and meta-analysis is to summarize and critically review the existing literature on the effects of PNMS on ASD and ADHD risk. Methods: Electronic databases (PubMed, PsycINFO, Web of Science, Scopus and EMBASE) will be searched for articles following a detailed search strategy. We will include cohort and case-control studies that assessed maternal exposure to psychological and/or environmental stress and had ASD or ADHD as an outcome. Two reviewers will independently screen the titles, abstracts and full articles to identify eligible studies. We will use a standardised data extraction form for extracting data and a bias classification tool for assessing study quality. This systematic review will be reported according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA). The generic inverse variance method will be used if possible to perform meta-analyses. Ethics and dissemination: Ethical approval is not required for this study because it will not involve the conduct or inclusion of any experimental or personal data that would require informed consent.  The systematic review will be disseminated in peer-reviewed journals. PROSPERO registration number: CRD42018084222.

scholarly journals Proton Pump Inhibitors and Fractures in Adults: A Critical Appraisal and Review of the Literature

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Silvia Irina Briganti ◽  
Anda Mihaela Naciu ◽  
Gaia Tabacco ◽  
Roberto Cesareo ◽  
Nicola Napoli ◽  
...  
Keyword(s):  
Proton Pump Inhibitors ◽  
Proton Pump ◽  
Bone Health ◽  
Meta Analysis ◽  
Fragility Fractures ◽  
High Dose ◽  
Case Control Studies ◽  
Number Of Patients ◽  
Increased Risk

Despite the large number of patients worldwide being on proton pump inhibitors (PPIs) for acid-related gastrointestinal disorders, uncertainty remains over their long-term safety. Particularly, the potential side effects of these drugs on bone health have been evaluated in the last years. The purpose of our narrative review is to gather and discuss results of clinical studies focusing on the interactions between PPIs and fracture risk. Data generated mainly from nested case-control studies and meta-analysis suggest that long-term/high-dose PPIs users are characterized by an increased risk of fragility fractures, mainly hip fractures. However, in these studies, the PPIs-induced bone impairment is often not adjusted for different confounding variables that could potentially affect bone health, and exposure to PPIs was reported using medical prescriptions without adherence evaluation. The mechanisms of the PPI-related bone damage are still unclear, but impaired micronutrients absorption, hypergastrinemia, and increased secretion of histamine may play a role. Clinicians should pay attention when prescribing PPIs to subjects with a preexistent high risk of fractures and consider antiosteoporotic drugs to manage this additive effect on the bone. However, further studies are needed to clarify PPIs action on the bone.

scholarly journals Association Between Infections and Risk of Ankylosing Spondylitis: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiao Zhang ◽  
Zhe Sun ◽  
Aihong Zhou ◽  
Lei Tao ◽  
Yingxin Chen ◽  
...  
Keyword(s):  
Ankylosing Spondylitis ◽  
Cohort Studies ◽  
Subgroup Analysis ◽  
Meta Analysis ◽  
Random Effect ◽  
Epidemiological Studies ◽  
Case Control ◽  
Total Risk ◽  
Case Control Studies ◽  
Increased Risk

BackgroundPrevious literature on the association between infections and the risk of developing ankylosing spondylitis (AS) presented controversial results. This meta-analysis aimed to quantitatively investigate the effect of infections on the risk of AS.MethodsWe searched the PubMed, Embase, and Web of Science databases until March 26, 2021 for analytical epidemiological studies on the association between infections and the risk of AS. Fixed or random effect models were used to calculate total risk estimates based on study heterogeneity. Subgroup analysis, and sensitivity analysis were also performed. Publication bias was estimated using funnel plots and Begg’s test.ResultsSix case-control articles (n=1,296,239) and seven cohort articles (n=7,618,524) were incorporated into our meta-analysis. The pooled odds ratio (OR) from these case-control studies showed that infections were associated with an increased risk of AS (OR=1.46, 95% confidence interval [CI], 1.23–1.73), and the pooled relative risk (RR) from the cohort studies showed the same findings (RR=1.35, 95% CI, 1.12–1.63). Subgroup analysis showed that infections in participants with unadjusted comorbidities (OR=1.66, 95% CI, 1.35–2.03), other types of infection (OR=1.40, 95% CI, 1.15–1.70), and infection of the immune system (OR=1.46, 95% CI, 1.42–1.49) were associated with the risk of AS in case-control studies. In cohort studies, infections with adjusted comorbidities (RR=1.39, 95% CI, 1.15–1.68), viral infection (RR=1.43, 95% CI, 1.22–1.66), other types of infection (RR=1.44, 95% CI, 1.12–1.86), and other sites of infection (RR=1.36, 95% CI, 1.11–1.67) were associated with an increased risk of AS.ConclusionsThe findings of this meta-analysis confirm that infections significantly increase the risks of AS. This is helpful in providing an essential basis for the prevention of AS via the avoidance of infections.

scholarly journals Association between Smoking and Risk of Primary Biliary Cholangitis: A Systematic Review and Meta-Analysis

2019 ◽  
Vol 28 ◽  
pp. 197-203
Author(s):  
Karn Wijarnpreecha ◽  
Monia Werlang ◽  
Panadeekarn Panjawatanan ◽  
Paul T Kroner ◽  
Omar Y Mousa ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Statistical Significance ◽  
Random Effect ◽  
Primary Biliary Cholangitis ◽  
Case Control Studies ◽  
Eligibility Criteria ◽  
Inverse Variance ◽  
Increased Risk ◽  
Former Smokers

Background & Aims: Studies have suggested that smokers may have a higher risk of primary biliary cholangitis (PBC) although the results have been inconsistent. This systematic review and meta-analysis aim to better characterize the risk of PBC among smokers by identifying all relevant studies and summarizing their results together. Methods: A comprehensive literature review was conducted using Embase and Pubmed/MEDLINE databases from inception to September 2018 to identify all studies which compared the risk of PBC among current, ever and former smokers to non-smokers. Effect estimates from each study were extracted and combined together using the random-effect, generic inverse variance method of DerSimonian and Laird. Results: Nine case-control studies with 21,577 participants met the eligibility criteria and were included in the meta-analysis. The risk of PBC among ever smokers was significantly higher than non-smokers with the pooled odds ratio (OR) of 1.31 (95% CI, 1.03-1.67; I 2 89%). Subgroup analysis found that the risk was higher in both former smokers (pooled OR 1.36; 95% CI, 1.01-1.84; I 2 75%) and current smokers (pooled OR 1.18; 95% CI, 0.94-1.50; I 2 79%), although the latter did not reach statistical significance. Immunomodulatory and cytotoxic effect of cigarettes were the possible mechanisms behind this increased risk. Conclusions: A significantly increased risk of PBC among individuals who ever smoked was observed in this study, adding to the already long list of harmful health consequences of smoking.

scholarly journals High parity is associated with increased risk of cervical cancer: Systematic review and meta-analysis of case-control studies

2021 ◽  
Author(s):  
Yohannes Tekalegn ◽  
Biniyam Sahiledengle ◽  
Demelash Woldeyohannes ◽  
Daniel Atlaw ◽  
Fikreab Desta ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cervical Cancer ◽  
Odds Ratio ◽  
Meta Analysis ◽  
Random Effect ◽  
Epidemiological Studies ◽  
Analysis Model ◽  
Case Control Studies ◽  
High Parity ◽  
Increased Risk

Abstract Background: Cervical cancer is the fourth most common cancer among women. High parity has long been suspected with an increased risk of cervical cancer. Evidence from the existing epidemiological studies regarding the association between parity and cervical cancer is variable and inconsistent. Therefore, the objective of this systematic review and meta-analysis was to synthesize the best available evidence on the epidemiological association between parity and cervical cancer. Methods: MEDLINE/PubMed, HINARI, Google scholar, Science direct, and Cochrane Libraries were systematically searched. Cochrane Q statistics and I2 tests were performed to assess heterogeneity among included studies. Begg's test and egger's regression analysis were performed to assess publication bias. A random-effect meta-analysis model was used to compute pooled odds ratio of the association between parity and cervical cancer. Results: A total of 6975 participants (1998 patients; 4977 controls) were incorporated in the 13 articles included in the final meta-analysis. The meta-analysis revealed that women with parity greater than or equal to three had 2.4 times higher odds of developing cervical cancer compared to women with parity less than three [pooled odds ratio (POR) = 2.4, 95% CI: 1.9-3.2]. Conclusion: High parity is associated with an increased risk of cervical cancer. Strong epidemiological studies are recommended to further explore the mechanisms and role of parity in the causation of cervical cancer.

scholarly journals Relationship between fluoroquinolones and the risk of aortic diseases: a meta-analysis of observational studies

2019 ◽  
Author(s):  
Xiao-ce Dai ◽  
Xin-xin Yang ◽  
Lan Ma ◽  
Guan-min Tang ◽  
Yan-yun Pan ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Observational Studies ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Aortic Diseases ◽  
Case Control Studies ◽  
Increased Risk ◽  
Statistical Heterogeneity ◽  
First Occurrence

Abstract Background Our aim was to find possible risk associated between fluoroquinolones and aortic diseases.Methods PubMed, Embase and the Web of Science were searched from inception to July 6, 2019 to identify observational studies that evaluated the risk for aortic diseases associated with users of fluoroquinolones compared with non-users or users of other antibiotics. Primary outcome was the first occurrence of aortic diseases. We used Newcastle Ottawa Scale to assess quality among cohort and case-control studies and the GRADE approach was used for rating strength of evidence and used inverse variance method random-effect model to estimate odds risks (ORs) with 95% CIs and statistical heterogeneity were assessed by the I 2 statistic.Results Five observational studies that enrolled 2,829,385 patients were reported the relationship between fluoroquinolones and the risk for aortic diseases. Compared with non-users or users of other antibiotics, current fluoroquinolone use had association with a significantly increased risk of occurrence of aortic diseases (adjusted OR, 2.15; 95% CI, 1.66-2.64; P=.000). The risk of past fluoroquinolone use remained high in aortic dissection (adjusted OR, 1.98; 95% CI, 0.97-2.99; P=.000) and aortic aneurysm (adjusted OR, 1.77; 95% CI, 0.98-2.57; P=.000). The quality of evidence was moderate and the Number Need to Treat to Harm (NNTH) for aortic diseases among elderly patients above the age of 50 were current users of fluoroquinolones was estimated to be 1245.Conclusions The current fluoroquinolones use within elderly patients significantly increased the risk for the first occurrence of aortic diseases. Clinicians need to pay attention to these severe adverse events when considering fluoroquinolone use.

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