其他摘要:Background Neonatal mortality comprises a large part of infant mortality, and it depends largely on neonatal birth weight. Besides maternal diseases, it seems that other important factors such as maternal demographic characteristics, mental health and marital satisfaction, affects their infants birth weight. This study conducted aiming to evaluate these affecting factors on neonatal birth weight. Materials and Methods This study was descriptive – correlative, and conducted on all of the mothers and their neonates who were 200 mothers and neonates born during the summer 2015, in Urmia Kosar hospital that lasted 6 months. We used the GHQ (General Health Questionnaire), to evaluate the mental status of mothers and ENRICH for the evaluation of marital satisfaction. Demographic characteristics of mothers collected to special forms. Results In this study, 200 mothers, and 200 neonates born in Kosar Hospital were studied. The mean age of the mothers was 28.06 ± 6.34 years and the duration of pregnancy was 39.14 ± 1.21 months. The amount of obtained was significant for pregnancy duration in predicting neonatal birth weight. In marital status parameters, beta amounts for economic, family and communication was significant in predicting neonatal birth weight. Among parameters of maternal mental health, correlation of depression was significant in predicting neonatal birth weight. Conclusion According to results, in white race low maternal age was a risk factor for bearing low birth weight baby. Marital satisfaction and bearing no stress from husband lets the fetus grow well and reaches normal birth weight.