Table II.

 Prevalence of Hypertension in the Adult Population of Shandong Province, China, From the 1991, 1999, and 2007 Surveys

Population Group	1991		1999		2007
	No.	%	No.	%	No.	%
Total	5936	15.6	4976	19.5	11,993	55.3
Men	3114	16.8	2430	19.7	4913	58.6
Women	2822	14.4	2546	19.3	7080	53.2
Total, age, y
18–29	509	4.4	179	4.2	102	14.1
30–39	763	7.9	597	8.9	702	28.5
40–49	1030	15.7	1296	19.4	1911	44.3
50–59	1392	27.8	1292	32.5	4385	58.2
60–69	1370	38.5	1090	42.2	3380	70.8
70+	872	45.9	522	39.3	1513	80.3
Men, age, y
18–29	397	7.0	122	5.1	47	17.5
30–39	522	11.0	355	10.9	331	36.0
40–49	528	16.6	625	19.8	792	50.9
50–59	674	28.0	631	33.2	1762	60.5
60–69	662	39.3	507	44.0	1373	69.8
70+	331	40.6	190	38.9	608	79.9
Women, age, y
18–29	112	1.9	57	3.1	55	12.1
30–39	241	4.9	242	7.1	371	24.0
40–49	502	14.8	671	19.0	1119	40.6
50–59	718	27.6	661	31.9	2623	56.7
60–69	708	37.9	583	40.7	2007	71.4
70+	541	49.9	332	39.6	905	80.5