Skip to main content

Table 1 Characteristics of the study participants in Fangshan District, Beijing, China

From: Prevalence of cardiovascular disease and risk factors in a rural district of Beijing, China: a population-based survey of 58,308 residents

Characteristics Total Males Females P value*
  (N = 58,308) (N = 20,362) (N = 37,946)  
Age (years), (mean ± SD) 56.3 ± 9.9 57.1 ± 10.2 55.9 ± 9.8 < 0.001
SBP (mmHg), (mean ± SD) 133.9 ± 17.9 134.4 ± 17.6 133.6 ± 18.0 < 0.001
DBP (mmHg), (mean ± SD) 84.1 ± 10.4 85.1 ± 10.8 83.6 ± 10.2 < 0.001
Weight (kg), (mean ± SD) 67.4 ± 11.4 71.6 ± 11.7 65.3 ± 10.6 < 0.001
Height (cm), (mean ± SD) 160.3 ± 7.9 167.2 ± 6.4 156.6 ± 5.9 < 0.001
BMI (kg/m2), (mean ± SD) 26.2 ± 3.8 25.5 ± 3.6 26.6 ± 3.9 < 0.001
BP classification (%), (95% CI)     < 0.001
   Normotension 19.3 (16.6, 23.1) 17.8 (15.2, 20.9) 20.7 (17.4, 24.4) -
   Prehypertension 37.8 (36.0, 39.7) 37.7 (35.9, 39.6) 37.9 (36.0, 39.9) -
   Stage 1 hypertension 28.6 (26.3, 30.9) 29.2 (27.1, 31.4) 28.2 (25.8, 30.7) -
   Stage 2 hypertension 13.9 (12.0, 16.1) 15.2 (13.2, 17.5) 13.2 (11.4, 15.3) -
Hypertension (%), (95% CI) 47.2 (44.5, 49.9) 48.7 (45.6, 51.8) 46.4 (43.8, 49.1) 0.004
Diabetes (%), (95% CI) 8.6 (7.4, 10.0) 7.8 (6.5, 9.3) 9.0 (7.8, 10.4) < 0.001
Overweight (%), (95% CI) 43.2 (41.7, 44.8) 41.2 (38.9, 43.7) 44.3 (43.1, 45.6) < 0.001
Obesity (%), (95% CI) 15.1 (13.8, 16.6) 10.7 (9.4, 12.1) 17.5 (16.0, 19.1) < 0.001
  1. SBP systolic blood pressure; DBP diastolic blood pressure; BP blood pressure; BMI body mass index; SD standard deviation; CI confidence interval. BP classification: normotension (SBP < 120 mmHg and DBP < 80 mmHg); prehypertension (SBP of 120-139 mmHg or DBP of 80-89 mmHg); stage 1 hypertension (SBP of 140-159 mmHg or DBP of 90-99 mmHg); stage 2 hypertension (SBP ≥ 160 mmHg or DBP ≥ 100 mmHg)
  2. Hypertension was defined as SBP ≥ 140 mmHg, or DBP ≥ 90 mmHg, or current use of any antihypertensive medication within two weeks or any combination of the above; diabetes was defined as self-reported current treatment with insulin or oral hypoglycemic agents; overweight was defined as BMI ≥ 25 kg/m2 and obesity as BMI ≥ 30 kg/m2
  3. *Compared between males and females
\