Effects of positive psychology interventions on happiness in women with unintended pregnancy: randomized controlled trial

Background: Undesirable effects Negative feelings among women with unintended pregnancies may have undesirable effects on pregnancy. However, little is known about the effect of positive feelings and protective factors on prenatal mental health of pregnant women. The aim of the present study was to determine the effect of positive psychology-based interventions (PPI) on the happiness of women with unintended pregnancies. Methods: This randomized controlled trial that included 40 women with unintended pregnancies was conducted between March and July 2017. The subjects were randomly assigned to receive 10 weekly training sessions based on positive psychology (PPI) (N = 20) or routine prenatal care (N = 20). All subjects received usual prenatal care. The level of happiness and its five domains were measured in three time points: at baseline, immediately after completing the intervention, and 45 days after the end of the intervention. The happiness was assessed using the Oxford Happiness Inventory (OHI). Results: In the intervention group, the mean total OHI score increased from 31.3 (at baseline) to 42.5 (after completing ten sessions of PPI), and the increase remained statistically significant at a 45-day follow-up (39.8); P = 0.001. However, the total OHI score did not change significantly during the follow-up (P = 0.339). Satisfaction with life, self-esteem, and subjective well-being improved significantly after the interventions, whereas the increases observed in the scores of positive mood and self-efficacy dimensions were not significant. Conclusion: PPIs can improve happiness and its dimensions among women with unintended pregnancies. It is suggested that healthcare planners help women with unplanned pregnancies adapt by formulating strategies to hold training courses with a positive psychology approach and recognize and promote their positive aspects and strengths.