Previous research into how the body communicates with the mind has demonstrated a connection between pessimistic outlook and negative health behaviors. The examination of a possible relationship between patient outlooks and survivorship in oncology populations is a relatively new and provocative area of investigation, and such studies have yielded mixed results. Some suggest that having a pessimistic personality before receiving a cancer diagnosis might be predictive of survival time and immune function; whereas, others have not found such an association. This newly released study builds on the existing research to gain knowledge specifically toward the effect of attitudes on lung cancer patients.
Utilizing the Optimism - Pessimism scale (PSM) of the Minnesota Multiphasic Personality Inventory (MMPI), the study investigators identified pessimistic and non-pessimistic or optimistic personality styles among patients. Researchers performed a retrospective evaluation of 534 adults diagnosed with lung cancer who had completed a MMPI about 18 years before receiving their lung cancer diagnosis between 1997 and 2006. Patients (both women and men) classified as having an optimistic attitude survived an average of six months longer compared with the patients with a pessimistic attitude. Five-year survival rates for the two groups were 32.9 percent for non-pessimists and 21.1 percent for pessimists. Furthermore, the relationship was independent of smoking status, cancer stage, treatment, comorbidities, age and gender.
- Overall 14.8 months
- Non-pessimistic 19.2 months
- Pessimistic 13.1 months
- Overall 27.8%
- Non-pessimistic 32.9%
- Pessimistic 21.1%
International Association for the Study of Lung Cancer