Personality and Self-efficacy for Illness Management in Cancer.

Objectives Self-efficacy for illness management is increasingly recognized as important for outcomes in cancer. We examined whether The Big Five personality dimensions were associated with self-efficacy for illness management and hypothesized that patients who were less neurotic and more conscientious would have better self-efficacy. Methods Adults with cancer completed a cross-sectional survey that included the Mini-International Personality Item Pool (IPIP) and three subscales of the Patient-Reported Outcomes Measurement Information System (PROMIS) Self-Efficacy for Chronic Conditions: managing emotions, managing symptoms, and managing treatment and medication. Linear regressions were used to test the hypotheses, while controlling for covariates. Results The personality and PROMIS self-efficacy measures demonstrated good evidence of reliability (median Cronbach's alpha = .78, range of .69-.92) and validity (intercorrelations). As hypothesized, patients who were less neurotic or more conscientious had higher levels of illness self-efficacy overall and on each of the three subscales (all p s < .001). Openness was associated with better self-management of symptoms ( p  = .013) and emotions ( p  = .040). Extraversion was associated with better self-management of emotions ( p  = .024). Conclusions Personality plays a vital role in illness self-efficacy for patients with cancer. Practice Implications: As a part of multidisciplinary care teams, psychosocial experts can use these findings to help patients better manage their illness.