THE CULTURAL ADAPTATION, RELIABILITY AND VALIDITY OF THE TURKISH VERSION OF THE SIMPLE PHYSICAL ACTIVITY QUESTIONNAIRE IN COMMON MENTAL DISORDERS

Abstract

Purpose: This study aims to evaluate the validity and reliability of the Turkish version of the Simple Physical Activity Questionnaire (SIMPAQ-T) in patients with common mental disorders. Methods: A total of eighty-one patients (mean age: 40.14 +/- 13.05 years) were included in this study. The SIMPAQ-T was used to evaluate the participants' physical activity levels and sedentary behaviors. To be used as descriptive data, DSM-5 Level 1 Cross-Cutting Symptom Measure-Adult was used to evaluate mental health symptomatology. International Physical Activity Questionnaire-Short Form (IPAQ-SF) and Brief Psychiatric Rating Scale (BPRS) were used to test the validity of the questionnaire. Results: The items of the SIMPAQ-T exhibited excellent intercorrelation coefficient (ICC) values (time spent in bed (0.93 (95% CI: 0.90-0.96)), sedentary time 0.87 (95% CI: 0.80-0.92), walking time 0.98 (95% CI: 0.98-0.99), exercise time 0.99 (95% CI: 0.99-0.99), and incidental activity time 0.95 (95% CI: 0.92-0.97)). The SIMPAQ-T was moderately correlated with IPAQ-SF in terms of sedentary (rho=0.641, p=0.001) and walking time (rho=0.564, p=0.001), indicating good construct validity. However, the BPRS had a significant correlation with only the sedentary time of the SIMPAQ (rho=0.246, p=0.022), indicating convergent validity was poor. Conclusion: The SIMPAQ-T is semantically and linguistically adequate to quickly assess physical activity level and sedentary behavior in patients with common mental disorders.