ORIGINAL RESEARCH article
Front. Med.
Sec. Intensive Care Medicine and Anesthesiology
Construction and validation of the Risk Assessment Scale for Deep Vein Thrombosis in High Altitude Plateau Areas
Xiaolin SUN 1
Shiqin PAN 1
Yuemei LI 2
红梅 麻 2
Lijuan SUN 1
Yin-cong LUO 3
Yaqian TONG 3
1. Department of Critical Care Medicine, Qinghai Provincial People's Hospital, Xining, China
2. Nursing department, Qinghai Provincial People's Hospital, Xining, China
3. School of Clinical Medicine, Qinghai University, Xining, China
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Abstract
【Abstract】Objective: To develop a deep vein thrombosis (DVT) risk assessment scale suitable in plateau areas and to test its reliability and validity. Methods: Based on a previous large-scale survey, combined with literature search and group discussions, an item pool for the DVT risk assessment scale in high-altitude areas was constructed. The items were discussed and revised through two rounds of Delphi expert consultations. The Analytic Hierarchy Process was used to determine the weight of each item and assign scores. A convenience sampling method was employed to select 214 patients admitted to a tertiary Hospital in Qinghai People from October 2023 to December 2023 as the research subjects. Discriminant validity and risk stratification were used to classify the overall risk level of the scale. Results: The Risk Assessment Scale for Deep Vein Thrombosis in Plateau Areas consists of 5 dimensions and 31 items. The Cronbach's α coefficient was 0.953, and the split-half coefficient was 0.957. The scale-level content validity index was 0.91, and the item-level content validity index ranged from 0.72 to 1.00. The area under the ROC curve was 0.73, with a 95% CI (0.655, 0.805), and the cutoff value was 14.5 points. Conclusion: The Risk Assessment Scale for Deep Vein Thrombosis in Plateau Areas developed in this study has good reliability and validity, and can scientifically and effectively assess the risk of DVT formation in hospitalized patients in high-altitude areas.
Summary
Keywords
deep vein thrombosis, Plateau, reliability and validity, risk, scale
Received
09 November 2025
Accepted
02 February 2026
Copyright
© 2026 SUN, PAN, LI, 麻, SUN, LUO and TONG. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Shiqin PAN
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