GC-PROM: validation of a patient-reported outcomes measure for Chinese patients with gastric cancer.,BMC Cancer

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GC-PROM: validation of a patient-reported outcomes measure for Chinese patients with gastric cancer.
BMC Cancer ( IF 3.4 ) Pub Date : 2020-01-16 , DOI: 10.1186/s12885-020-6518-z
Xiaojuan Hu ₁ , Fen Zhao ₂ , Hongmei Yu ₁ , Yanhong Luo ₁ , Jinchun Liu ₃ , Yanbo Zhang ₁

Affiliation

BACKGROUND There is increasing recognition that PROs are important in the estimation of the burden of long-term survival among patients with gastric cancer. The study aimed to develop a disease-specific instrument to assess patient-reported outcomes for Chinese patients with gastric cancer. METHOD Following the FDA's draft guidance for patient-reported outcome, conceptual framework and item pool were defined based on relevant existing work. A draft scale was formed after revising some items based on feedback from experts and Chinese patients with gastric cancer. The pre-survey and formal survey were conducted in eight different hospitals in Shanxi Province, and two item-selection process based on classical test theory and item response theory. Finally, the patient-reported outcomes measure for Chinese patients with gastric cancer (GC-PROM) was validated in terms of reliability, validity, and feasibility. The minimal clinically important difference was determined by distribution-based method. RESULTS The final GC-PROM consisted of 38 items, 13 subdomains, and 4 domains. Reliability was verified by Cronbach's alpha coefficient for four domains and 13 subdomains respectively. The validity results showed that the multidimensional scale fulfilled expectations. In the formal survey, the completion rate was 96.16%, and the average filling time was less than half an hour. The values of the minimal clinically important difference were 4.14, 3.41, 3.37, and 3.28 in the four domains. CONCLUSIONS The GC-PROM had good reliability, validity, and feasibility and thus can be considered an effective clinical evaluation instrument for Chinese patients with gastric cancer.

更新日期：2020-01-17

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