Short-Term and Long-Term Blood Pressure Changes and the Risk of All-Cause and Cardiovascular Mortality
Table 1
Baseline characteristics.
Characteristics
Study population 1 (n=24004)
Study Population 2 (n=30506)
Female, n (%)
11866(49.4)
15577(51.1)
Age (year)
51.9(10.8)
50.2(11.0)
Race, n (%)
Han
18553(77.3)
23617(77.4)
Mongolian
5126(21.4)
6487(21.3)
Others
325(1.4)
402(1.3)
BMI (kg/m2)
23.6 (2.5)
23.2 (28)
SBP (mmHg)
131.1(14.7)
133.5(22.1)
DBP (mmHg)
81.4(10.0)
82.3 (12.5)
Education level, n (%)
Never or Less than 5 years
9696(40.4)
13048(42.8)
Primary school
12871(53.6)
15612(51.2)
Tertiary high school or higher education
1437(6.0)
1846(6.1)
Physical activity, n (%)
Low
6147(25.6)
8351(27.4)
Moderate
11011(45.9)
13824(45.3)
High
6846(28.5)
8331(27.3)
Current drinking, n (%)
7434(31.0)
9591(31.4)
Current smoking, n (%)
8512(35.5)
12669(41.5)
BP categories
Normal, n (%)
3038(12.7)
5520(18.1)
Prehypertension, n (%)
13140(54.7)
13912(45.6)
Hypertension, n (%)
7826(32.6)
11074(36.3)
Family history of hypertension, n (%)
2852(11.9)
3994(13.1)
Antihypertensive treatment, n (%)
2186(9.1)
2537(8.3)
History of diabetes, n (%)
86(0.4)
137(0.4)
History of hyperlipidemia, n (%)
595(2.5)
1053(3.5)
History of CVD, n (%)
639(2.7)
1107(3.6)
Values are expressed as mean (standard deviation) or number (percentage). BMI: body mass index; BP: blood pressure; SBP: systolic blood pressure; DBP: diastolic blood pressure; BP categories according to JNC7; study population 1: participants with short-term (2008-2010) BP category changes; Study population 2: participants with long-term (2004-2006 to 2010) BP category changes.
