Prehospital
Literature Index
Neurology

Development and validation of a dynamic nomogram of prehospital delay in patients with first-episode acute ischemic stroke.

Fangyan Li, Lei Zhang, Ruilei Zhang, Yaoyao Liu, Tinglin Zhang

Geriatric nursing (New York, N.Y.) · 2025-01-01 · Method & validation

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Abstract

BACKGROUND: To develop and validate a dynamic nomogram for prehospital delay in patients with first-episode acute ischemic strokes (AIS). METHODS: Select 468 first-episode AIS patients from Jinzhou between September 2023 and March 2024, and the patients were investigated with questionnaires. SPSS 27.0 software was used to identify the influencing factors of prehospital delay, and a dynamic nomogram was constructed based on R-shiny. RESULTS: including living alone, regular physical examination, NIHSS scores, illness perception, perceived barriers to healthcare-seeking decisions, and health literacy for stroke, were screened to construct a dynamic nomogram. For the training set, the AUC was 0.847, and the validation set's AUC was 0.834. The calibration curve was close to the ideal curve, and DCA results confirmed that the nomogram performed well in terms of clinical applicability. CONCLUSION: The dynamic nomogram in this study has good discrimination and calibration, and the included indicators are simple and easy to obtain.

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Tags

Decision support tools · Time intervals

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