Objectives: Pregnant women are among the most vulnerable groups for Helicobacter pylori infection. The infection may cause nausea, vomiting, anemia, fetal growth restriction, fetal anomalies and low birth weight of infants. H. pylori prevalence during pregnancy is vary widely between different geographical regions and given the importance of this infection in pregnancy, systematic review and meta-analysis has been done. Materials and Methods:The current study has been conducted based on PRISMA guideline. The time interval of the investigated studies was from the beginning of 2000 until March 2016. In order to achieve the related literature, databases sources such as Scopus, PubMed, Science Direct, Cochrane, Embase, Springer, Wiley online library, as well as Google Scholar search engine was used. The search was done using Mesh keywords. Furthermore, all the articles that met the inclusion criteria were evaluated. The data has been analyzed using the random-effects models for meta-analysis and the Stata 11.1. Results: In 24 studies, a total of 19426 pregnant women had been investigated. The worldwide prevalence of H. pylori infection in pregnant women was calculated to be 46% (95% CI: 38-54). The lowest prevalence of H. pylori infection was seen in Europe, 25% (95% CI: 9-40) and the highest prevalence in South America 62% (95% CI: 53-71 IntroductionThroughout the history of the world, the ones who had confronted the bitterest face of poverty and war had always been the women. As known poverty and war affects human health either directly or indirectly, the effects of this condition on health and status of women in the society should not be ignored. This study intends to cast light on the effects of war and poverty on the reproductive health of women. For this purpose, the face of war affecting the women, the problem of immigration, inequalities in distribution of income based on gender and the effects of all these on the reproductive health of women will be addressed.

Background The COVID-19 pandemic has led to the death of many people worldwide. The World Health Organization (WHO) has declared vaccine resistance as one of the greatest health threats in the world even before the COVID-19 epidemic. The aim of this study was to evaluate the acceptance of COVID-19 vaccine in pregnant women. Method We performed this systematic review and meta-analysis in accordance with the PRISMA guidelines. We applied the standard search strategy to the PubMed/Medline, Web of Science (ISI), Scopus, Science Direct, Cochrane Library, EMBASE, and EBSCO databases, and the Google Scholar search engine. Heterogeneity between studies was relatively high and therefore meta-analyses were performed based on random effects model with 95% CI using STATA version 16. Results In 16 articles with a sample size of 19219 pregnant women, the acceptance of COVID-19 vaccine was estimated 53.46% (95%CI: 47.64%-59.24%). Subgroup analysis was performed based on continent (p = 0.796), data collection method (p = 0.450) and meta-regression based on the month of the study (P<0.001), and only meta-regression was significant based on the month of the study. The effect of some variables such as graviad (OR = 1.02 [95%CI: 0.90–1.16]), maternal age was (OR = 1.02 [95%CI: 0.93–1.11]) and history of influenza vaccination (OR = 0.87 [95%CI: 0.71–1.06]) on COVID-19 vaccine acceptance was evaluated, which was not significant. Conclusion The prevalence of COVID-19 vaccine acceptance in pregnant women was 53.46%, which was much lower than the general COVID-19 vaccination. Therefore, necessary interventions should be taken to increase the acceptance of the vaccine, address safety concerns and educate about it.

Background:The clinical consequences of hypothyroidism and hypothyroxinemia during pregnancy such as preterm birth are not still clear. Objective: The aim of this meta-analysis was to estimate the relation of clinical and subclinical hypothyroidism and hypothyroxinemia during pregnancy and preterm birth.Materials and Methods: In this meta-analysis, Preferred Reporting Items for Systematic review and Meta-Analysis were utilized. Searching the cohort studies were done by two researchers independently without any restrictions on Scopus, PubMed, Science Direct, Embase, Web of Science, CINAHL, Cochrane, EBSCO and Google Scholar databases up to 2017. The heterogeneity of the studies was checked by the Cochran's Q test and I2 index. Both random and fixed-effects models were used for combining the relative risk and 95% confidence intervals. Data were analyzed using Comprehensive Meta-Analysis software version 2.Results:Twenty-three studies were included in the meta-analysis. The relative risks of the clinical hypothyroidism, subclinical hypothyroidism and hypothyroxinemia during pregnancy on preterm birth was estimated 1.30 (95% CI: 1.05-1.61, p=0.013, involving 20079 cases and 2452817 controls), 1.36 (95% CI: 1.09-1.68, p=0.005, involving 3580 cases and 64885 controls) and 1.31 (95% CI: 1.04-1.66, p=0.020, involving 1078 cases and 44377 controls), respectively.Conclusion: The incidence of preterm birth was higher among mothers with clinical and subclinical hypothyroidism or hypothyroxinemia during pregnancy compared to euthyroid mothers, and these relations were significant. Therefore, gynecologists and endocrinologists should manage these patients to control the incidence of adverse pregnancy outcomes such as preterm birth.

Perinatal transmission is one of the most common routes of hepatitis B virus (HBV) transmission. This study aims to identify the epidemiological features of HBV among pregnant Iranian women. This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Two authors independently searched several online databases without time limit until May 2017. The databases include Magiran, Iranmedex, SID, Medlib, IranDoc, Scopus, PubMed, Science Direct, Cochrane, Web of Science and Google Scholar. The data were analyzed based on a random-effects model using Comprehensive Meta-Analysis software version 2. Thirty-seven studies were included in the meta-analysis. The prevalence of HBV among pregnant Iranian women was 1.18% (95% CI: 0.09%-1.53%). The prevalence of HBV among pregnant women living in urban and rural areas was 1.60% (95% CI: 0.06%-4.30%) and 1.70% (95% CI: 0.09%-3.2%), respectively. The prevalence of HBV among housewives and working pregnant women was 4.3% (95% CI: 1.4%-12.5%) and 1.2% (95% CI: 0.02%-5.8%), respectively. The risk of developing an HBV infection was significantly associated with illiteracy (p = 0.013), abortion (p = 0.001), blood transfusion (p < 0.001) and addicted spouse (p = 0.045). However, no significant relationship was observed between HBV infection and urbanization (p = 0.65), occupation (p = 0.37), history of surgery (p = 0.32) or tattooing (p = 0.69). Vaccination coverage (receiving at least a single dose) in pregnant women was 9.8% (95% CI: 5.3%-17.5%). The prevalence of HBV among pregnant women is lower than in the general population of Iran. HBV vaccination coverage was low among pregnant Iranian women. Therefore, health policy-makers are recommended to enforce immunization programs for HBV vaccination among high-risk pregnant women.

Context: Depression is a common problem during pregnancy. Depression has several adverse effects on the mother and infant. Evidence Acquisition: The present study was conducted to investigate the prevalence of depression in pregnant women in Iran. Methods: This study was performed based on the Preferred Reporting Items for systematic reviews and meta-analyses (PRISMA) guidelines. We searched the literature in the national and international databases, including Magiran, Iranmedex, SID, Medlib, IranDoc, Scopus, PubMed, Elsevier (Science Direct, Embase, and Scopus), Web of Science (ISI), and Google Scholar using Persian and English (MeSH) keywords. Cochran's Q test and I 2 index were used to assess the heterogeneity of the studies. A random-effects model was used to estimate the pooled prevalence using meta-analysis comprehension ver. 3. Results: 40 studies containing 15,870 Iranian pregnant women were included in the Meta-analysis. The heterogeneity of the studies was estimated to be high (I 2 = 99.70%, P < 0.001). Conclusions: According to the high prevalence of depression in Iranian pregnant woman, identification and treatment of depression during pregnancy seem essential. Thus, program designing and implementation are recommended for improving the psychological health of pregnant women.