[Retracted] Analysis of Carotid Ultrasound Screening of High-Risk Groups of Stroke Based on Big Data Technology

Table 2

Judgment criteria for high-, medium-, and low-risk groups of stroke.

Crowd classification	Judgment standard
High-risk groups	3 or more risk factors or a history of stroke or TIA
Medium-risk groups	Less than 3 risk factors and suffer from chronic diseases
Low-risk groups	Less than 3 risk factors and no chronic diseases