Chutima NitisingNapaporn Sowattanangoonนภาพร โสวัฒนางกูรSirikul Isaranurugศิริกุล อิศรานุรักษ์Mahidol University. ASEAN Institute for Health Development2012-03-222017-04-072012-03-222017-04-072012-03-222009Journal of Public Health and Development. Vol.7, No.2 (2009), 27 - 391905-1387https://repository.li.mahidol.ac.th/handle/20.500.14594/1620The prevalence of maternal depression has become an important problem worldwide including Thailand. The purpose of this cross sectional study was to investigate the association of maternal self-efficacy and social support with maternal depression. The sample comprised 285 mothers with children aged one year or less and who attended the well-baby clinic in the pediatric out patient department at Samutsakhon Provincial Hospital. Data was collected using self-administrated questionnaires and the self-report technique. Pearson’s Correlation Coefficient, Chi-square test and multiple regression analysis using Stepwise procedure were used for data analysis. Results revealed that the factors that were significantly related to maternal depression, were education level (r = .123, p =.038), sufficient family income ( =9.877, p=.007), maternal self-efficacy (r = -.135, p =.028), and social support (r = -.171, p =.004). After applying stepwise multiple regression analysis by controlling education level and sufficient family income, social support was found to be a good predictor (R2 = 9.5, p= .046) of depression, while self-efficacy (R2 = 9.5, p= .051) was not. This study has shown that self-efficacy and social support are inversely related to maternal depression. It emphasizes the need for further study identifies and explains the role of maternal self-efficacy as a mediator in reducing maternal depression.Mahidol UniversityMarternal self-efficacysocial supportMarternal perceptionOpen Access articleJournal of Public Health and DevelopmentวารสารสาธารณสุขและการพัฒนาOriginal ArticleASEAN Institute for Health Development Mahidol University