Epidemiology of Hypertension in a Typical State-Level Poverty-Stricken County in China and Evaluation of a Whole Population Health Prevention Project Intervention

Table 7

Changes in risk classes in hypertensive patients (n (%)).

Risk class of hypertension	First physical examination	Last physical examination
Low risk	2,032 (6.1)	1,585 (5.8)
Intermediate risk	21,970 (66.4)	18,757 (69.5)
High risk	9,062 (27.4)	6,640 (24.6)
Total	33,064	26,982

Note: low risk: Grade 1 hypertension and no other risk factors; intermediate risk: Grade 1 hypertension and 1-2 risk factors, or Grade 2 hypertension and ≤2 risk factors; high risk: Grade 3 hypertension or ≥3 risk factors.