Hungarian adaptation of the Peripheral Artery Disease Quality of Life questionnaire

Abstract

Peripheral artery disease is one of the greatest, global public health concerns affecting more than 200 million people worldwide. The Peripheral Artery Disease Quality of Life questionnaire was developed to assess the subjective disease burden of peripheral artery disease, by focusing on psychosocial and emotional effects besides physical symptoms and functional limitations. To develop the valid Hungarian version of the original PADQOL via the standard linguistic validation and cross-cultural adaptation procedure. The linguistic validation was conducted according to an international protocol: two independent forward translations, a synthesis of the translations, back translations and consensus team review. The pilot-testing of the 'pre-final' Hungarian version was conducted via cognitive interviews with 30 in- and outpatients attending the Department of Angiology. Factor analysis was performed, Cronbach-alpha values were calculated to establish the reliability of subscales and to determine the internal consistency if items. IBM SPSS 23.0 was used. The linguistic validation of PADQOL into Hungarian posed no difficulties in terms of semantic, experiential and idiomatic equivalence. One item was found difficult to interpret during cognitive interviewing. The 'pre-final' version of the questionnaire was easy to understand and complete. Cronbach-alpha values of factors ranged between 0.624 and 0.887. The lowest value was that of factor 4: Fear and Uncertainty (mean score: 14.07). The linguistic validation of PADQOL into Hungarian was successful, the final Hungarian version is a tool that should reveal valuable insights with regard to subjective disease burden of patients living with peripheral artery disease subsequent to psychometric and clinicometric validation on a larger patient population. Orv Hetil. 2020; 161(51): 2153-2161.