Interaction mechanism of discharge readiness between discharge teaching and post-discharge outcomes in gynecological inpatients: a mediation analysis

Background: With the rapid implementation of enhanced recovery after surgery, most gynecological patients are discharged without full recovery. Discharge planning is necessary for patients and their families to transition from hospital to home. Discharge teaching and discharge readiness are two core indicators used to evaluate the quality of discharge planning, which impacts the post-discharge outcomes. To improve post-discharge outcomes, the interaction mechanism of the three variables needs to be determined, but few studies have focused on it. Objectives: Explore the mediating effect of discharge readiness between discharge teaching and post-discharge outcomes of gynecological inpatients. Methods: Discharge teaching and discharge readiness were measured by the Quality of Discharge Teaching Scale (QDTS) and Readiness for Hospital Discharge Scale (RHDS). Post-discharge outcomes on postoperative Day 7 (POF-D7) and postoperative Day 28 (POF-D28) were measured by a self-designed tool. Spearman correlations, Kruskal‒Wallis tests and Mann‒Whitney U tests were conducted to explore the correlation between post-discharge outcomes and other variables. Mediation analysis was used to explore the mediating effect of discharge readiness between discharge teaching and post-discharge outcomes. Results: QDTS and RHDS showed strong positive correlations with post-discharge outcomes. The mediation analyses verified that RHDS was a full mediator between QDTS and POF-D7, and the indirect effect accounted for 95.6% of the total direct effect. RHDS was a partial mediator between QDTS and POF-D28, and the indirect effect accounted for 50.0% of the total direct effect. RHDS was a full mediator between QDTS and total scores of post-discharge outcomes, and the indirect effect accounted for 88.9% of the total direct effect. Conclusions: Discharge teaching can improve the post-discharge outcomes of gynecological inpatients through the intermediary role of discharge readiness. Doctors and nurses should value the quality of discharge teaching and the discharge readiness improving of gynecological inpatients. Future studies should note the interaction mechanism of the three variables to explore more efficient ways of improving post-discharge outcomes of gynecological inpatients.