Treatment and Control Rates of hypertension in the Community Health Centres (CHCs) in the six cities of the Guangdong Province.

<p>A to F represent selected community health centres in the six cities of the Pearl River Delta region. Treatment was defined as the prescription of at least one antihypertensive agent; control was defined as systolic blood pressure <140 mmHg and diastolic blood pressure <90 mmHg; or <130 mmHg and <80 mmHg, respectively in patients with diabetes mellitus.