Table 1.
Demographic Characteristics of Chinese Adults by Age Group and Parental History of Hypertension Status,a the People’s Republic of China Study (1983)
| Parental History of Hypertension Status | Young Adults (24–39 Years)
|
Middle-Aged Adults (40–71 Years)
|
||
|---|---|---|---|---|
| Negative (n = 1866) | Positive (n = 474) | Negative (n = 1473) | Positive (n = 291) | |
| Age in years; mean (SD) | 32.2 (4.0) | 32.6 (3.9) | 49.7 (6.7) | 46.6 (5.4) |
| Gender (% women) | 57.6 | 50.4 | 48.1 | 49.1 |
| Body mass index in kg/m2; mean (SD) | 20.1 (2.0) | 20.4 (2.3) | 20.2 (2.6) | 21.0 (2.9) |
| Body mass index category (%) | ||||
| <18.5 kg/m2 | 20.6 | 18.4 | 27.0 | 23.0 |
| 18.5 to <21.0 kg/m2 | 52.0 | 46.2 | 41.3 | 32.7 |
| 21.0 to <23.0 kg/m2 | 19.8 | 22.8 | 18.9 | 21.3 |
| 23.0 to <25.0 kg/m2 | 5.3 | 9.1 | 8.5 | 13.4 |
| 25.0 to <27.5 kg/m2 | 1.9 | 3.0 | 3.4 | 7.6 |
| ≥27.5 kg/m2 | 0.5 | 0.6 | 0.9 | 2.1 |
| Parental history of hypertension (%) | ||||
| Father | 55.7 | 44.3 | ||
| Mother | 38.0 | 47.8 | ||
| Both parents | 6.3 | 7.9 | ||
| Current cigarette or leaf smokers (%) | 33.9 | 32.5 | 44.7 | 40.2 |
| Cigarettes or leaf smoked in cigarettes/day; mean (SD) | 5.6 (9.4) | 5.3 (8.9) | 8.3 (12.0) | 8.3 (12.0) |
| Current drinkers (%) | 21.9 | 13.9 | 26.1 | 18.9 |
| Alcohol consumed in g/day; mean (SD) | 10.8 (33.9) | 6.7 (26.4) | 17.7 (47.7) | 11.4 (38.1) |
| Educational attainment (%) | ||||
| <Senior middle school | 77.3 | 56.8 | 85.4 | 76.3 |
| Senior middle school | 13.7 | 28.3 | 5.0 | 10.0 |
| >Senior middle school | 1.8 | 4.6 | 1.2 | 4.8 |
| Unknown | 7.1 | 10.3 | 8.4 | 8.9 |
| Field center (% urban) | 43.0 | 75.5 | 44.9 | 69.1 |
| Systolic blood pressure in mm Hg; mean (SD) | 110.3 (11.2) | 113.0 (11.6) | 115.9 (17.9) | 119.7 (20.4) |
| Diastolic blood pressure in mm Hg; mean (SD) | 69.0 (8.8) | 72.0 (9.2) | 74.2 (10.4) | 77.8 (11.4) |
| Hypertension status (%) | ||||
| Prehypertensiveb | 22.8 | 25.3 | 27.7 | 29.2 |
| Hypertensivec | 2.1 | 6.1 | 12.0 | 18.6 |
| Blood pressure medication use (%) | 0.2 | 0.2 | 1.0 | 2.8 |
a
Subjects were classified as having a positive parental history of hypertension if hypertension was reported by at least one parent and negative if hypertension was not reported in either parent.
b
Prehypertensive includes subjects who were not hypertensive with a systolic blood pressure of 120 to 139 mm Hg or diastolic blood pressure of 80 to 89 mm Hg.
c
Hypertensive includes subjects with a systolic blood pressure ≥140 mm Hg, diastolic blood pressure ≥90 mm Hg, or self-report of current antihypertensive medication use.