We assessed the associations between: 1) depressive symptoms and physical inactivity (n=2184); and 2) aging and physical inactivity (n= 4726), using the patient data from Dutch primary care populations participating in CVRM.
Activity levels were measured by the patient reported Rapid Assessment of Physical Activity (RAPA) questionnaire. Symptoms of depression were determined using the Patient Health Questionnaire (PHQ-9).
To assess the association between depressive symptomatology we performed a multilevel linear regression analysis (95%CIs), using random slopes and intercepts, adjusting for the following potential confounders: score on the patient activation measure (PAM) questionnaire, age and smoking, gender and whether or not suffering a cardiovascular disease.
Also a multilevel regression analysis was used to explore the association between aging and physical inactivity, adjusting for confounders that modified the regression coefficient for age by more than 10%.