The effect of telephone support on postpartum depression: a randomized controlled trial.

INTRODUCTION Postpartum depression is a common disorder. Systematic reviews emphasized the need to conduct more trials about interventions to prevent postpartum depression. The aim of this study was to determine the effect of postpartum telephone support on maternal depression. METHODS 366 postpartum women with no history of known depression were randomly assigned into control (244 subjects) and intervention (122 subjects) groups. The control group received only routine postpartum care. In the intervention group, telephone support was provided twice in the first week and once a week during the second to sixth week of postpartum by a trained midwife in addition to the routine care. In order to meet their unpredicted needs, the mothers could contact the consultant 24 hours a day. Postpartum depression was assessed using the self-administered Edinburgh Depression Scale at 60 to 65 days of postpartum. Mothers with scores of 13 and above were considered to have depression. Logistic regression and Student's t-test were used for the data analysis. RESULTS There was no significant difference regarding frequency of depression between the intervention and control groups (29.9% vs. 31.6%; Odds ratio 0.91, 95% CI 0.56 to 1.49). Mean of depression score was not significantly different between the groups [9.2 (6.1) vs. 10.4 (5.8); mean difference -1.19, 95%CI -2.5 to 0.13]. CONCLUSION This study did not provide evidence to show that telephone support of a midwife during postpartum period have a preventive effect on postpartum depression.