Evaluation of a simple diet self-assessment tool(SDSAT) in esophageal cancer patients after operation

Yu Yuan; Li Min; Cong Minghua

doi:10.16689/j.cnki.cn11-9349/r.2020.04.013

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Electronic Journal of Metabolism and Nutrition of Cancer ›› 2020, Vol. 7 ›› Issue (4) : 443-447. DOI: 10.16689/j.cnki.cn11-9349/r.2020.04.013

Evaluation of a simple diet self-assessment tool(SDSAT) in esophageal cancer patients after operation

Yu Yuan1, Li Min1, Cong Minghua2

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Abstract

Objective This study aimed to evaluate the reliability and validity of the simple diet self-assessment tool (SDSAT) among esophageal cancer patients after operation. Methods Three studies were conducted to measure the interrater reliability, test-retest reliability and predictive validity separately. Sixty patients were involved in study A prior to operation to be measured by 2 researchers with SDSAT separately in order to get the interrater reliability of SDSAT. Thirty patients were involved in study B 1month after operation to be measured with SDSAT. Two weeks later, they were be measured again to get the test-retest reliability. The predictive validity was established by exploring the impact of the score of SDSAT on prealbumin among 171 esophageal cancer patients in study C which was a longitudinal observational study measured 3 points including before operation, 1month after operation and 3months after operation. Results The interrater reliability of SDSAT was 0.854(P<0.01). Test-retest reliability was 0.782(P<0.01). Generalized estimating equation(GEE) showed that the score of SDSAT had a significant impact on prealbumin(P<0.01), which demonstrated good predictive validity. Conclusion The SDSAT demonstrated favorable reliability and validity. It is appropriate for estimation of dietary intake among esophageal cancer patients.

Key words

Esophageal cancer / Simple diet self-assessment tool / Reliability / Validity

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Yu Yuan, Li Min, Cong Minghua. Evaluation of a simple diet self-assessment tool(SDSAT) in esophageal cancer patients after operation[J]. Electronic Journal of Metabolism and Nutrition of Cancer. 2020, 7(4): 443-447 https://doi.org/10.16689/j.cnki.cn11-9349/r.2020.04.013

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