Sex differences in the association of emotional approach coping with stress and quality of life among patients with renal cell carcinoma

OBJECTIVES: Emotional-approach coping (EAC), including emotional expression (EE) and emotional processing (EP), may impact stress and quality of life (QOL) in cancer populations, with some evidence that EAC effects vary by sex. METHODS: = 63) with renal cell carcinoma (RCC) completed the EAC Scale, Perceived Stress Scale (PSS), and 36-item Medical Outcomes Study Short Form Survey (SF-36) physical component scale (PCS) and mental component scale (MCS) at study entry and 10 months later. The PROCESS macro (model 7) was used to examine the indirect effect of baseline EAC (EE, EP) on 10-month QOL (PCS, MCS) via baseline PSS, with sex as a moderator of the association between EAC and PSS (i.e., four models of moderated mediation). RESULTS: Bootstrap estimates of indirect effects revealed significant moderated mediation, such that, for female participants, greater EE at study entry was associated with lower PSS, which in turn was associated with higher PCS and MCS 10 months later; whereas for males, EE was not associated with PSS and was not indirectly associated with physical and mental health-related QOL via PSS. Models examining the indirect effects of EP on QOL via PSS were nonsignificant for male and female participants. SIGNIFICANCE OF RESULTS: EE is an important correlate of perceived stress for females but not males with RCC. Perceived stress early in treatment has a robust association with subsequent health-related QOL. Interventions aimed at supporting EE for females with RCC may have long-term QOL benefits.