. 2020 Jan 31;22(2):150–156. doi: 10.1111/jch.13820

Table 4.

The impact of increases and decreases in population blood pressure BP (at intervals of 2/1 mm Hg) on hypertension prevalence, and rates of “unawareness” of hypertension diagnosis, antihypertensive drug treatment, and control using a hypertension threshold of 130/80 mm Hg or greater from a population blood pressure survey (n = 1540)

BP change (mm Hg)	Epidemiological^a	Clinical^a
−10/5	670^c (43.5)	537^c (80.1)	133^c (19.9)	41^c (6.1)	561^c (36.4)	428^c (76.3)	133^c (23.7)	44^c (7.8)
−8/4	736^c (47.8)	603 (81.9)	133 (18.1)	34 (4.6)	632^c (41.0)	499 (79.0)	133 (21.0)	40 (6.3)
−6/3	801^c (52.0)	668 (83.4)	133 (16.6)	33 (4.1)	686^c (44.5)	553 (80.6)	133 (19.4)	40 (5.8)
−4/2	867^c (56.3)	734 (84.7)	133 (15.3)	32 (3.7)	743^c (48.2)	610 (82.1)	133 (17.9)	38 (5.1)
−2/1	913 (59.3)	780 (85.4)	133 (14.6)	30 (3.3)	820 (53.2)	687 (83.8)	133 (16.2)	30 (3.7)
0	979 (63.6)	846 (86.4)	133/979 (13.6)	25/979 (2.6)	866 (56.2)	733 (84.6)	133/866 (15.4)	28/866 (3.2)
2/1	1037 (67.3)	904 (87.2)	133 (12.8)	22 (2.1)	954 (61.9)	821 (86.1)	133 (13.9)	22 (2.3)
4/2	1079 (70.1)	946 (87.7)	133 (12.3)	18 (1.7)	10 163 (66.0)	883 (86.9)	133 (13.1)	17 (1.7)
6/3	11 213 (72.8)	988 (88.1)	133 (11.9)	9 (0.8)	10 733 (69.7)	940 (87.6)	133 (12.4)	13 (1.2)
8/4	11 803 (76.6)	1047 (88.7)	133 (11.3)	7^c (0.6)	11 293 (73.3)	996 (88.2)	133 (11.8)	11^c (1.0)
10/5	12 263 (79.6)	1093 (89.2)	133 (10.8)	6^c (0.5)	11 833 (76.8)	1050 (88.8)	133 (11.2)	9^c (0.8)
P‐value^d	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001

BP change (mm Hg)

Epidemiological^a

Clinical^a

Prevalence (%)

Unawareness^b (%)

Treated (%)

Control (%)

Prevalence (%)

Unawareness^b (%)

Treated (%)

Control (%)

−10/5

670^c

(43.5)

537^c

(80.1)

133^c

(19.9)

41^c

(6.1)

561^c

(36.4)

428^c

(76.3)

133^c

(23.7)

44^c

(7.8)

−8/4

736^c

(47.8)

603

(81.9)

133

(18.1)

(4.6)

632^c

(41.0)

499

(79.0)

133

(21.0)

(6.3)

−6/3

801^c

(52.0)

668

(83.4)

133

(16.6)

(4.1)

686^c

(44.5)

553

(80.6)

133

(19.4)

(5.8)

−4/2

867^c

(56.3)

734

(84.7)

133

(15.3)

(3.7)

743^c

(48.2)

610

(82.1)

133

(17.9)

(5.1)

−2/1

913

(59.3)

780

(85.4)

133

(14.6)

(3.3)

820

(53.2)

687

(83.8)

133

(16.2)

(3.7)

979

(63.6)

846

(86.4)

133/979

(13.6)

25/979

(2.6)

866

(56.2)

733

(84.6)

133/866

(15.4)

28/866

(3.2)

2/1

1037

(67.3)

904

(87.2)

133

(12.8)

(2.1)

954

(61.9)

821

(86.1)

133

(13.9)

(2.3)

4/2

1079

(70.1)

946

(87.7)

133

(12.3)

(1.7)

10 163

(66.0)

883

(86.9)

133

(13.1)

(1.7)

6/3

11 213

(72.8)

988

(88.1)

133

(11.9)

(0.8)

10 733

(69.7)

940

(87.6)

133

(12.4)

(1.2)

8/4

11 803

(76.6)

1047

(88.7)

133

(11.3)

7^c

(0.6)

11 293

(73.3)

996

(88.2)

133

(11.8)

11^c

(1.0)

10/5

12 263

(79.6)

1093

(89.2)

133

(10.8)

6^c

(0.5)

11 833

(76.8)

1050

(88.8)

133

(11.2)

9^c

(0.8)

P‐value^d

<.001

The epidemiological data are based on the average of three readings at a single visit. The clinical data are based on the average reading from three visits over 1 wk.

Unawareness is defined as having high blood pressure but not having been diagnosed before the survey and not taking antihypertensive medication.

P < .05, compared with the 140/90 mm Hg

P value for trend in column.