This historical cohort study was designed to clarify the association between air pollution and low birth weight (LBW) amongst women referred to Tehran hospitals in 2007. In total, 225 eligible pregnant women who lived within 5 km of an air pollution monitoring station during their pregnancy were selected for the study. Data were collected via interview and hospital records. Exposure to each pollutant was estimated for each woman individually throughout her pregnancy and for each trimester. Exposures were modelled as categorical variables using inter-quartile ranges in a logistic regression model. The results showed a significant association between exposure to CO and LBW (OR = 2.08, 95% CI: 1.70-4.60), particularly during the second trimester (OR = 3.96, CI: 1.83-12.5. We conclude that exposure to air pollution during pregnancy may be associated with LBW.

Background and Objectives: Elderly abuse is one of the major social health problems and has a significant impact on the quality of life of the elderly. Faster detection of elder abuse and providing appropriate remedies will reduce its subsequent complications. Therefore, this study was conducted with the aim of translating and determining the psychometric properties of the Geriatric Mistreatment Scale (22 items) in the elderly living in Tehran, Iran. Materials and Methods: This descriptive study was conducted on 301 elderly people living in Tehran in 2017-2018. The translation was done by the Health-Related Quality of Life (HRQOL) protocol method; after obtaining written permission from the original designer. Exploratory factor analysis was used to evaluate construct validity and Cronbach's alpha coefficient and test-retest were used to determine reliability. Results: Cronbach's alpha was 0.80 for all items and Intraclass Correlation Coefficient was 0.81 which both showed appropriate reliability of the Persian version of Geriatric Mistreatment Scale. In the exploratory factor analysis, three factors (physical, psychological, economic) were extracted by principal axis factoring that determined 42% of cumulative variance. Conclusion: The findings of the present study indicate that the Persian version of the Geriatric Mistreatment Scale is a valid and reliable tool that can be used as an indigenous tool to assess elder abuse, which is a public health problem.

Background:Preeclampsia is one of the most serious complications during pregnancy with important effects on health of mother and fetus that causes maternal and fetal morbidity and mortality. This study was performed to evaluate whether high levels of hemoglobin may increase the risk of preeclampsia.Objectives:The present study aimed to predict preeclampsia by the hemoglobin profiles through longitudinal discriminant analysis and comparing the error rate of discrimination in longitudinal and cross sectional data.Patients and Methods:In a prospective cohort study from October 2010 to July 2011, 650 pregnant women referred to the prenatal clinic of Milad Hospital in Tehran were evaluated in 3 stages. The hemoglobin level of each woman was measured in the first, second, and third trimester of pregnancy by an expert technician. The subjects were followed up to delivery and preeclampsia was the main outcome under study. The covariance pattern and linear-mixed effects models are common methods that were applied for discriminant analysis of longitudinal data. Also Student t, Mann-Whitney U, and chi-square tests were used for comparing the demographic and clinical characteristics between two groups. Statistical analyses were performed using the SAS software version 9.1.Results:The prevalence rate of preeclampsia was 7.2% (47 women). The women with preeclampsia had a higher mean of hemoglobin values and the difference was 0.46 g/dL (P = 0.003). Also the mean of hemoglobin in the first trimester was higher than that of the second trimester, and was lower than that of the third trimester and the differences were significant (P = 0.015 and P < 0.001, respectively). The sensitivity for longitudinal data and cross-sectional data in three trimesters was 90%, 67%, 72%, and 54% and the specificity was 88%, 55%, 63%, and 50%, respectively.Conclusions:The levels of hemoglobin can be used to predict preeclampsia and monitoring the pregnant women and its regular measure in 3 trimesters help us to identify women at risk for preeclampsia.