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

Table 3.

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 140/90 mm Hg or greater from a population blood pressure survey (n = 1540)

BP change (mm Hg)	Epidemiological^a	Clinical^a
−10/5	390^c (25.3)	257^c (65.9)	133^c (34.1)	67^c (17.2)	340^c (22.1)	207^c (60.9)	133^c (39.1)	72^c (21.2)
−8/4	431^c (28.0)	298 (69.1)	133 (30.9)	65^c (15.1)	368^c (23.9)	235 (63.9)	133 (36.1)	68^c (18.5)
−6/3	461^c (29.9)	328 (71.1)	133 (28.9)	54^c (11.7)	399^c (25.9)	266 (66.7)	133 (33.3)	63 (15.8)
−4/2	509^c (33.1)	376 (73.9)	133 (26.1)	51 (10.0)	433 (28.1)	300 (69.3)	133 (30.7)	57 (13.2)
−2/1	555 (36.0)	422 (76.0)	133 (24.0)	50 (9.0)	466 (30.0)	333 (71.5)	133 (28.5)	54 (11.6)
0	611/1540 (39.7)	478/611 (78.2)	133/611 (21.8)	43/611 (7.0)	515/1540 (33.4)	382/515 (74.2)	133/515 (25.8)	50/515 (9.7)
2/1	679 (44.1)	546 (80.4)	133 (19.6)	36 (5.3)	574 (37.3)	441 (76.8)	133 (23.2)	43 (7.5)
4/2	743^c (48.2)	610 (82.1)	133 (17.9)	35 (4.7)	637^c (41.4)	504 (79.1)	133 (20.9)	43 (6.8)
6/3	817^c (53.1)	684 (83.7)	133 (16.3)	32 (3.9)	688^c (44.7)	555 (80.7)	133 (19.3)	41 (6.0)
8/4	865^c (56.2)	732 (84.6)	133 (15.4)	31 (3.6)	770^c (50.0)	637^c (82.7)	133^c (17.3)	34^c (4.4)
10/5	917^c (59.5)	784^c (85.5)	133^c (14.5)	26^c (2.8)	823^c (53.4)	690^c (83.8)	133^c (16.2)	30^c (3.6)
P‐value^d	<.001	<.001	<.001	<.001	<.001	<.001	<.001	<.001

BP change (mm Hg)

Epidemiological^a

Clinical^a

Prevalence n (%)

Unawareness^b n (%)

Treated n (%)

Control n (%)

Prevalence n (%)

Unawareness^b n (%)

Treated n (%)

Control n (%)

−10/5

390^c

(25.3)

257^c

(65.9)

133^c

(34.1)

67^c

(17.2)

340^c

(22.1)

207^c

(60.9)

133^c

(39.1)

72^c

(21.2)

−8/4

431^c

(28.0)

298

(69.1)

133

(30.9)

65^c

(15.1)

368^c

(23.9)

235

(63.9)

133

(36.1)

68^c

(18.5)

−6/3

461^c

(29.9)

328

(71.1)

133

(28.9)

54^c

(11.7)

399^c

(25.9)

266

(66.7)

133

(33.3)

(15.8)

−4/2

509^c

(33.1)

376

(73.9)

133

(26.1)

(10.0)

433

(28.1)

300

(69.3)

133

(30.7)

(13.2)

−2/1

555

(36.0)

422

(76.0)

133

(24.0)

(9.0)

466

(30.0)

333

(71.5)

133

(28.5)

(11.6)

611/1540

(39.7)

478/611

(78.2)

133/611

(21.8)

43/611

(7.0)

515/1540

(33.4)

382/515

(74.2)

133/515

(25.8)

50/515

(9.7)

2/1

679

(44.1)

546

(80.4)

133

(19.6)

(5.3)

574

(37.3)

441

(76.8)

133

(23.2)

(7.5)

4/2

743^c

(48.2)

610

(82.1)

133

(17.9)

(4.7)

637^c

(41.4)

504

(79.1)

133

(20.9)

(6.8)

6/3

817^c

(53.1)

684

(83.7)

133

(16.3)

(3.9)

688^c

(44.7)

555

(80.7)

133

(19.3)

(6.0)

8/4

865^c

(56.2)

732

(84.6)

133

(15.4)

(3.6)

770^c

(50.0)

637^c

(82.7)

133^c

(17.3)

34^c

(4.4)

10/5

917^c

(59.5)

784^c

(85.5)

133^c

(14.5)

26^c

(2.8)

823^c

(53.4)

690^c

(83.8)

133^c

(16.2)

30^c

(3.6)

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 of three visits.

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.