Palliative & supportive care · 2025
Transcultural adaptation and Mexican validation of the posttraumatic growth inventory (PTGI-X-Mx) in a palliative oncology population.
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Ascencio Huertas Leticia, Austria Corrales Fernando, Astudillo García Claudia Iveth, García Benitez Carlos Alejandro, Allende-Pérez Silvia
Аннотация
INTRODUCTION: Cancer patients may suffer negative consequences; however, they also report positive aspects of psychological adjustment, such as posttraumatic growth. One of the most widely used instruments for measuring this is the Posttraumatic Growth Inventory (PTGI).
OBJECTIVES: Cross-cultural adaptation and Mexican validation of the PTGI-X in the palliative oncology population.
METHODS: A prospective cross-sectional study was conducted in 2 phases: the first involved translation and cross-cultural adaptation (expert judgment/piloting), and the second involved validation of the scale. In the latter, the sample comprised 236 advanced-stage oncology patients, and the following analyses were performed: 1) items under the classical test theory, 2) discrimination and internal consistency indices, 3) confirmatory factor analysis, and 4) convergent and divergent validity.
RESULTS: Discrimination coefficients (pBis) ranging from 0.32 to 0.72 were obtained from the translated and adapted version. Cronbach's alpha was 0.94. The 5-factor theoretical model was assumed; the confirmatory factor analysis yielded a scaled χ2 of 749.01 (df = 265; χ2/df = 2.83), CFI = 0.93, TLI = 0.93, RMSEA = 0.088, and SRMR = 0.065. Bivariate correlations were employed, showing moderate positive associations between the scale factors (r = 0.60 and 0.79) and low-magnitude positive correlations between the factors of posttraumatic growth and perception of quality of life (r = 0.14 and 0.18).
SIGNIFICANCE OF RESULTS: The PTGI-X-Mx showed satisfactory psychometric properties in patients with advanced oncological disease receiving palliative care.
OBJECTIVES: Cross-cultural adaptation and Mexican validation of the PTGI-X in the palliative oncology population.
METHODS: A prospective cross-sectional study was conducted in 2 phases: the first involved translation and cross-cultural adaptation (expert judgment/piloting), and the second involved validation of the scale. In the latter, the sample comprised 236 advanced-stage oncology patients, and the following analyses were performed: 1) items under the classical test theory, 2) discrimination and internal consistency indices, 3) confirmatory factor analysis, and 4) convergent and divergent validity.
RESULTS: Discrimination coefficients (pBis) ranging from 0.32 to 0.72 were obtained from the translated and adapted version. Cronbach's alpha was 0.94. The 5-factor theoretical model was assumed; the confirmatory factor analysis yielded a scaled χ2 of 749.01 (df = 265; χ2/df = 2.83), CFI = 0.93, TLI = 0.93, RMSEA = 0.088, and SRMR = 0.065. Bivariate correlations were employed, showing moderate positive associations between the scale factors (r = 0.60 and 0.79) and low-magnitude positive correlations between the factors of posttraumatic growth and perception of quality of life (r = 0.14 and 0.18).
SIGNIFICANCE OF RESULTS: The PTGI-X-Mx showed satisfactory psychometric properties in patients with advanced oncological disease receiving palliative care.