Objective To assess the role of self-efficacy as a mediator of the association between patient-centred communication (PCC) and health-related quality of life (HRQoL) in a sample of participants with ovarian cancer.
Methods English-speaking adults with ovarian cancer completed a cross-sectional survey. We assessed self-efficacy with the Self-Efficacy for Managing Chronic Disease scale, PCC with the Patient-Centred Communication in Cancer Care-36, and HRQoL with the Functional Assessment of Cancer Therapy-General. We used the PROCESS macro to calculate regression coefficients for the total effect of PCC on HRQoL and direct effect of PCC on HRQoL. We calculated a 95% CI for the indirect effect of PCC on HRQoL using 10 000 bootstrapped samples.
Results The total effect of PCC on HRQoL (9.47, 95% CI 6.21 to 12.74) was greater than the direct effect of PCC on HRQoL (3.47, 95% CI 0.73 to 6.21). The indirect effect of PCC on HRQoL was 6.00 (95% CI 3.56 to 8.95). Self-efficacy explained approximately 63.4% of the association between PCC and HRQoL.
Conclusions Self-efficacy partially mediated the association between PCC and HRQoL. Self-efficacy is a potential target for communication interventions that aim to improve HRQoL. Research to validate this finding in the setting of a randomised trial is warranted.
- Quality of life
- Other cancer
- Supportive care
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Contributors RP: conceptualisation; data curation; data analysis; writing—original draft. NX and EM: Data analysis; writing—review and editing. BAG and DLB: conceptualisation; data curation; writing—review and editing. AW, JAT and MJH: conceptualisation; writing—review and editing.
Funding This work was supported by an American Cancer Society Postdoctoral Fellowship (133063-PF-19-102-01-CPPB) and a Gordon and Betty Moore Foundation Society for Medical Decision Making Fellowship in Medical Decision Making (GBMF7853).
Disclaimer The funding sources had no involvement in the study design; in the collection, analysis, or interpretation of data; in the writing of the report; or in the decision to submit the article for publication.
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.