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

Table 1

Risk classification of hypertensive patients.

Risk factors	Blood pressure
	Grade 1 hypertension (SBP 140–159 or DBP 90–99)	Grade 2 hypertension (SBP 160–179 or DBP 100–109)	Grade 3 hypertension (SBP ≥180 or DBP ≤110)
No other risk factors	Low risk	Intermediate risk	High risk
1-2 risk factors	Intermediate risk	Intermediate risk	High risk
≥3 risk factors	High risk	High risk	High risk