The impact of cognitive impairment on patient activation and their value in self-management among COPD patients

To examine the impact of the interaction between cognitive function and patient activation on self-management behaviors among COPD patients. We conducted a study of 331 COPD patients. Cognitive function and patient activation were evaluated at baseline, relevant information on social demography and diseases was collected simultaneously. The primary outcome was self-management behaviors. We performed a multiple logistic regression analysis to evaluate the interaction between cognitive function and patient activation. We found the interaction between mild cognitive impairment (MCI) and low patient activation on poor self-management behaviors was multiplicative. The proportion of participants with high patient activation was lower than those with low patient activation among patients with MCI. The incidence of poor self-management behaviors in patients with normal cognition differed significantly between participants with different activation levels (90.2 % vs.31.3 % vs.9.7 %). However, the difference was small in those with MCI (94 % vs. 73.5 % vs. 84.5). Notably, poor self-management behaviors were high among patients with MCI, regardless of their activation level. Patients with COPD are more likely to have poor self-management behaviors when MCI and low patient activation coexist, and it was difficult to be activated for patients with MCI. The assessment of cognitive function is crucial for patients with COPD, especially those with low activation. •Evidence concerning cognitive function, patient activation and healthy behaviors of patients COPD remained insufficient.•Few studies have explored the potential association between cognitive function and patient activation.•Patients with COPD are more likely to have poor self-management behaviors when MCI and low patient activation coexist.•Patients with MCI seemed to be difficult to be activated, and cognitive function predicts self-management behaviors better.