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Validación de la escala PPS-v2 en pacientes con diagnóstico de cáncer en un hospital de cuarto nivel en Colombia
(2025)
Objective: To validate the Palliative Performance Scale version 2 (PPSv2) in Colombian patients diagnosed with cancer.
Methodology: A cross-sectional observational study evaluated 270 patients diagnosed with cancerand treated at the [details omitted for double-anonymized peer review]. The PPSv2 scale, Karnofsky Performance Scale (KPS), and the Eastern Cooperative Oncology Group (ECOG) scale were administered to assess the validity and reliability of the PPSv2.
Results: 172 patients (63.7%) were female, with a median age of 59 (interquartile range ± 18 years). The Cronbach's alpha coefficient was 0.903 (95% CI: 0.88–0.92). Concurrent validity was assessed by comparing the PPSv2 scale with the KPS and ECOG scales, yielding Spearman correlation coefficients of 0.973 for KPS and -0.915 for ECOG. An intraclass correlation coefficient (ICC) of 0.99 was found, indicating high inter-rater reliability. To determine test-retest reliability, the ICC was calculated, yielding a result of 0.81 (95% CI: 0.58–0.92).
Conclusions: The PPSv2 scale demonstrates adequate internal consistency, concurrent validity, and inter-rater and test-retest reliability in patients diagnosed with cancer.
