Validation of the Brazilian Portuguese version of the Copenhagen Burnout Inventory (CBI) in healthcare professionals

ABSTRACT The objective of this study was the validation of the Brazilian Portuguese version of The Copenhagen Burnout Inventory (CBI). The study sample consisted of 1.256 Brazilian health professionals. Data were collected during one month (May-2020 to June-2020) through an online self-administered questionnaire, including the CBI and the Patient Health Questionnaire 9 (PHQ-9) to evaluate depressive symptoms. All consistency measures showed values > 0.90. The split-half correlation values with Spearman-Brown reliability were higher than 0.8. The parallel analysis suggested two factors: the items of CBI’s personal burnout (PB) and work-related burnout (WB) sub-dimensions that were associated with factor 1 (personal and work-related fatigue and exhaustion) and the items of CBI’s client-related burnout (CB) sub-dimension were associated with factor 2 (exhaustion that emerges while working with people). The correlation between the PHQ-9 score and factor 1 was 0.76 (0.73; 0.79) and with factor 2, 0.49 (0.43; 0.55). Our study provides a valid and reliable Brazilian Portuguese version of CBI, encouraging the expansion of the burnout research field in our country.