Multicultural Quality of Life Index in Relatives of People With Borderline Personality Disorder

Purpose: The aim of the present study was to confirm the original factor structure of the Multicultural Quality of Life Index (MQLI) and analyze its psychometric properties in a sample of caregivers of people with borderline personality disorder (BPD). Methods: The MQLI was administered to 233 relatives of people with BPD. Participants completed the MQLI, the Depression, Anxiety and Stress Scale (DASS-21), and the Connor-Davidson Resilience Scale (CD-RISC). Results: Factor analysis of the relatives indicated that the MQLI generated a one-factor solution. The MQLI showed good internal consistency, (omega) over bar = 0.91 [95% CI (0.90, 0.93)] and correlated significantly and positively with the CD-RISC (r(s) = 0.576) and negatively with the DASS-21 (r(s) = -0.583). Conclusion: Consistent with other studies, the MQLI demonstrated feasibility, strong internal consistency, and good convergent and discriminant validity, which means it is a psychometrically robust measure for the assessment of quality of life in relatives of people with BPD. Along with other validation studies, this measure will be a useful tool for assessing quality of life in relatives of people with mental disorders.

Automated summary

The aim of this study was to confirm the factor structure and analyze the psychometric properties of the Multicultural Quality of Life Index (MQLI) in caregivers of people with borderline personality disorder (BPD). The results indicated that the MQLI demonstrated good internal consistency, convergent and discriminant validity, making it a reliable measure for assessing the quality of life in relatives of people with BPD.