Different effects between the current capability of and changes in self-management strategies on improving health behavior and psychological health after 6 months: evidence from a prospective cohort study of patients with cancer

We aimed to examine different effects of the current capability of and changes in self-management strategies on improving health behavior and psychological health (satisfaction of life, depression, and anxiety) after 6 months in cancer patients.A prospective cohort study was conducted, including 540 cancer patients. We measured cancer patients' self-management strategies' capability with Smart Management Strategies for Health (SMASH) Assessment Tool (SAT) baseline scores and changes with SMASH change scores based on a clinically meaningful 10% change of the scores. We conducted adjusted multivariate multiple logistic regression analyses using the stepwise selection method between SMASH baseline and health behavior, satisfaction with life (SWL), depression, and anxiety and between SMASH changes and health behavior, SWL, depression, and anxiety.256 cancer patients completed both the first and second surveys. While various SMASH capabilities positively affected each health behavior, SWL, depression, and anxiety, the positive-reframing strategy at baseline only affected all health behavior, SWL, and depression. However, based on SMASH changes, using the positive-reframing strategy a lot for 6 months adversely affected some physical health behaviors' practice (balanced diet and stop smoking and drinking). Changes in the life value pursuing strategy only positively affected HB (proactive living) and anxiety.SMASH baseline and change scores were generally associated with practicing cancer patients' health behaviors, lower depression, and anxiety. However, it is necessary to consider that excessively using the positive-reframing strategy would interfere with practicing a balanced diet and stopping smoking and drinking behaviors.