The dyadic relationship of benefit finding and its impact on quality of life in colorectal cancer survivor and spousal caregiver couples.

OBJECTIVES

To explore the benefit finding (BF) relationship between colorectal cancer (CRC) survivors and their spousal caregivers, and to discover the dyadic impact of BF on quality of life (QOL) in CRC survivor and spousal caregiver couples.

METHODS

Conducted from May 2018 to December 2018, the study included 286 couples consisting of CRC survivors and their spousal caregivers. The study survey evaluated participants' BF, anxiety, depression, and QOL. Data analysis methods included Pearson's correlation, paired t test, and the actor-partner interdependence mediation model (APIMeM).

RESULTS

CRC survivors and spousal caregivers reported comparable moderate to high BF experience (ranging from 68.9 to 80.8%). Moderate to high correlations were found between CRC survivors and their spousal caregivers in all of the paired BFs (including the overall BF scale and three factors) (all Ps < 0.001, r = 0.461-0.612). We found significant positive correlations of the same measures between dyads of CRC survivors and spousal caregivers (r = 0.331-0.612), including BFS-C (overall BF scale and three subscales), HADS-C (anxiety and depression), PCS, and MCS. To a certain degree, BF exerts an impact on couples' QOL through the mediating effect of psychological distress (anxiety and depression).

CONCLUSIONS

The present study further confirms the dyadic interdependence between BF, anxiety, depression, and QOL in couples coping with CRC. In addition, the APIMeM findings may support the proposed mechanism, in that buffering against negative emotions (psychological distress) is an approach in which BF plays an important role, e.g., improves QOL, in the context of a stressful process.