Psychometric properties of the Turkish version of the Pectus Carinatum Evaluation Questionnaire used in patients with pectus carinatum treated with compression orthosis.

Abstract

The Pectus Carinatum Evaluation Questionnaire (PCEQ) was developed for use in patients with pectus carinatum (PC) treated with compression orthosis. The questionnaire can be used to develop a strict program in the early follow-up period or to improve patients' compliance with the treatment after treatment initiation and to improve the quality of life. This study aimed to evaluate the psychometric properties of the Turkish version of the PCEQ in patients with PC treated with compression orthosis. Validity and reliability study. This study included 52 volunteer patients with PC, aged 10-18 years. The Cronbach α coefficient, a measure of internal consistency, was used to check questionnaire reliability, and test-retest reliability (intraclass correlation coefficient) was used to check consistency over time. Construct validity was analyzed (correlation analysis) with the days/hours of orthosis use. The reliability of the Turkish version of the PCEQ was found to have acceptable-to-sufficient-to-excellent internal consistency (Cronbach α coefficient = 0.701-915). Test-retest reliability calculated for investigating the reliability of the questionnaire over time was found to be excellent (intraclass correlation coefficient = 0.880-0.941). Furthermore, treatment compliance hours (r = 0.280, P = 0.044) and days (r = 0.299, P = 0.032) were found to be associated with parents' influence at a low level and with time to compliance at a moderate level (r = -0.449-457, P = 0.001). The Turkish version of the PCEQ used in patients with PC treated with compression orthosis was found to have sufficient-to-excellent validity and reliability and could be used to develop a strict program for patients with PC using the orthosis or to improve patients' treatment compliance after treatment initiation. Using this questionnaire may be important to assist the team members in the clinical decision-making process.