One of the most efficient methods to control the high infection rate of the coronavirus disease 2019 (COVID-19) is to have a high coverage of COVID-19 vaccination worldwide. Therefore, it is important to understand individuals’ intention to get COVID-19 vaccinated. The present study applied the Theory of Planned Behavior (TPB) to explain the intention to get COVID-19 vaccinated among a representative sample in Qazvin, Iran. The TPB uses psychological constructs of attitude, subjective norm, and perceived behavioral control to explain an individual’s intention to perform a behavior. Fear and perceived infectability were additionally incorporated into the TPB to explain the intention to get COVID-19 vaccinated. Utilizing multistage stratified cluster sampling, 10,843 participants (4092 males; 37.7%) with a mean age of 35.54 years (SD = 12.00) completed a survey. The survey assessed TPB constructs (including attitude, subjective norm, perceived behavioral control, and intention related to COVID-19 vaccination) together with fear of COVID-19 and perceived COVID-19 infectability. Structural equation modeling (SEM) was performed to examine whether fear of COVID-19, perceived infectability, and the TPB constructs explained individuals’ intention to get COVID-19 vaccinated. The SEM demonstrated satisfactory fit (comparative fit index = 0.970; Tucker-Lewis index = 0.962; root mean square error of approximation = 0.040; standardized root mean square residual = 0.050). Moreover, perceived behavioral control, subjective norm, attitude, and perceived COVID-19 infectability significantly explained individuals’ intention to get COVID-19 vaccinated. Perceived COVID-19 infectability and TPB constructs were all significant mediators in the relationship between fear of COVID-19 and intention to get COVID-19 vaccinated. Incorporating fear of COVID-19 and perceived COVID-19 infectability effectively into the TPB explained Iranians’ intention to get COVID-19 vaccinated. Therefore, Iranians who have a strong belief in Muslim religion may improve their intention to get COVID-19 vaccinated via these constructs.

Objective Background: Preterm labor, which defines as live-birth delivery before 37 weeks of gestation is a main determinant of neonatal morbidity and mortality around the world. : The aim of this study was to determine the prevalence of preterm labor in Iran by a meta-analysis study, to be as a final measure for policy ...

Background: Pain is a common experience for women during labor. Therefore, pain relief care for mothers during labor is very important. This meta-analysis was conducted to evaluate the efficacy of massage therapy on labor pain reduction in primiparous women. Materials and Methods: In this meta-analysis, the databases of Web of Knowledge, PubMed, Scopus, Cochrane, Iranmedex, Scientific Information Database (SID), and Magiran were searched for published articles in English and Persian language up to January 2016. Among the studies, with regard to the inclusion and exclusion criteria, 10 studies were selected. Data were analyzed by using Stata software version 11, and standard mean difference (SMD) of effects of massage therapy was calculated. The heterogeneity among studies was evaluated by the Chi-square based Q-test and I²statistics. Results: The results of Chi-square based on Q-test and I²statistics showed heterogeneity among studies in the latent phase (Q = 63.52, P value < 0.001 and I² = 87.4%), active phase (Q = 26.42, P value < 0.001, and I² = 77.3%), and transitional phase (Q = 104.84, P value <0.001, and I² = 95.2%). Results showed that massage therapy reduces labor pain in the latent phase (SMD = −1.23, 95% CI: −1.73 to −0.74), active phase (SMD = −1.59, 95% CI: −2.06 to −1.12), and transitional phase (SMD = −1.90, 95% CI: −3.09 to −0.71). Conclusions: This study provides valid evidence for the effect of massage therapy in Iran for labor pain relief. Therefore, the use of massage therapy can be recommended in the primiparous women.

Aflatoxin M₁ is a derivate of aflatoxin B₁ and an important contaminant of milk and dairy products. This systematic review and meta-analysis was conducted on relevant Persian and English original articles in national and international databases with no time limits until 1 January 2018. In total 605 articles were found among which 70 articles met the inclusion criteria for meta-analysis. The prevalence (95% confidence interval (CI)) and mean concentration (95% CI) of aflatoxin M₁ was found to be 64% (53-75%) and 39.7 ng/l (31.9-47.4 ng/l) in raw milk, 95% (89-98%) and 62.3 ng/l (40.6-84 ng/l) in pasteurised milk, 71% (56-84%) and 60.1 ng/l (30.9-89.3 ng/l) in sterilised milk, 59% (20-93%) and 5.5 ng/l (3.3-7.7 ng/l) in breast milk and 72% (61-81%) and 82.3 ng/kg (63.7-100.9 ng/kg) in dairy products. In general, 9% (4-16%) of milks and 10% (4-17%) of dairy products had aflatoxin M₁ in concentrations exceeding the permitted level of Iranian standards (500 ng/l). Based on the maximum permitted aflatoxin M₁ concentration in standards of Europe (50 ng/l), these percentages increase to 25% (18-32%) for milks and 18% (9-29%) for dairy products. According to the results, further control and preventive measures should be applied on livestock feeds because decreased aflatoxin B₁ contamination at this level results in decreased aflatoxin M₁ in milk and dairy products.

Background: Preeclampsia is relatively a common complication in pregnancy and is characterized by high blood pressure and protein in urine during pregnancy. Consistent with the adverse outcomes followed by preeclampsia, this study designed to investigate the how preeclampsia is associated with preterm, low birth weight (LBW), cesarean section, and weigh gain during pregnancy. Methods: In this population-based cross-sectional study, 5166 deliveries from 103 hospitals in Tehran (Capital of Iran) were included in the analysis in 2015. The independent variable was preeclampsia during pregnancy and weight gain during pregnancy, preterm birth, cesarean section, and LBW were considered as interested outcomes. The data were analyzed by statistical Stata software (version 13, Stata Inc., College Station, TX). Results: Adjusted results showed that the mean of weight gain in women with preeclampsia was significantly higher than women without preeclampsia (mean difference: 1.77 kg, 95%CI: 0.76–12.78, p = .001). The adjusted odds ratio for preterm birth, cesarean section, and LBW were 4.19 (95%CI: 2.71–6.48, p = .001), 1.92 (95%CI: 1.24–2.98, p = .003), and 1.19 (95%CI: 0.61–2.31, p = .599), respectively. Conclusion: Weight gain in women with preeclampsia was higher than women without preeclampsia and also the odds of preterm birth, cesarean section and LBW in women with preeclampsia was higher than women without preeclampsia.