To evaluate the e cacy and mechanism of positive psychological intervention (PPI) on the psychological capital, psychological distress, and life satisfaction among colostomy patients.
MethodsPatients (n=120) with permanent stomas were recruited and randomly assigned into two groups. Patients in the experimental group (n=60) received standard care and PPI, whereas patients in the control group (n=60) only received standard care. The psychological capital, psychological distress, and life satisfaction were measured and compared between two groups before the intervention, the immediate post-intervention, and follow-up.
ResultsAll 120 patients completed the study. The hope, optimism, resilience, psychological distress, and life satisfaction score of the experimental group were signi cantly higher than those of the control group at T1 and T2 (P<0.05). Self-e cacy score of the experimental group had no signi cant difference at the two-time points after the intervention than the control group (P>0.05). Changes in hope and resilience which belong to psychological capital mediated the intervention's e cacy on changes in PPI on life satisfaction (β = 0.265, P=0.005; β = 0.686, P=0.002).
ConclusionsPPI could effectively improve psychological capital, psychological distress, and life satisfaction among patients with stomas. Besides, our ndings add novel support that increased hope and resilience are the active ingredients that promote intervention change.in thinking about a person's positive future and formulating ways to achieve goals, we believe it makes sense that increased psychological capital, including self-e cacy, hope, optimism, and resilience, mediates the effects of PPI on well-being. And these mediating variables may occur simultaneously with changes in well-being.Therefore, the main purpose of our study is to examine the e cacy of PPI on improving well-being (i.e., increasing life satisfaction and decreasing psychological stress) among patients with a stoma. In addition, we considered that psychological capital is the mediating active ingredient of PPI to improve life satisfaction and reduce psychological stress, thus, our secondary purpose is to examine the e cacy of the PPI in increasing psychological capital (selfe cacy, hope, optimism, and resilience). Finally, in order to better understand the psychological processes that make a PPI e cacious, this study would use Structural Equation Modeling (SEM) to explore the action mechanism of a speci c intervention in increasing well-being.
Methods
DesignWe conducted a single-blinded, double-arm parallel, randomized controlled trial in a general hospital in northern China from 1 January 2019-1 January 2020. This trial was approved by the human research ethics committee of the hospital, and it was registered at Chinese Clinical Trials Registry (Registration No.
ChiCTR2100052179).Sample size G*Power 3.1.3 was employed to estimate the sample size. Referencing a study on the effect of PPI on the well-being of breast cancer patients [18], we took the power of 0.8 with an ...