Table 1 Characteristics of family members, specified by generation and gender
From: Familial correlation and aggregation of body mass index and blood pressure in Chinese Han population
| Fathers | Mothers | pvalue* | Sons | Daughters | pvalue# | |
|---|---|---|---|---|---|---|
| Number of individuals | ||||||
| Total | 6369 | 6369 | 4132 | 2237 | ||
| 18 ~ 25 years | 0 | 0 | 2533 | 1717 | ||
| 26 ~ 35 years | 3 | 8 | 1474 | 469 | ||
| 36 ~ 45 years | 953 | 1498 | 119 | 48 | ||
| 46 ~ 55 years | 3578 | 3757 | 6 | 3 | ||
| 56 ~ 65 years | 1835 | 1106 | 0 | 0 | ||
| Age (mean ± SD) | 52.0 ± 6.2 | 49.8 ± 5.8 | 0.001 | 24.8 ± 5.0 | 23.0 ± 4.7 | 0.001 |
| Body mass index (mean ± SD) | 23.4 ± 3.3 | 24.2 ± 3.6 | 0.001 | 22.4 ± 3.5 | 21.6 ± 3.2 | 0.001 |
| Systolic blood pressure (mean ± SD) | 126.8 ± 19.4 | 126.2 ± 21.4 | 0.141 | 115.7 ± 12.1 | 108.1 ± 11.6 | 0.001 |
| Diastolic blood pressure (mean ± SD) | 81.6 ± 11.7 | 79.8 ± 11.8 | 0.001 | 75.1 ± 9.4 | 70.5 ± 8.7 | 0.001 |
| Highly educated (High school and above) (%) | 22.2 | 13.6 | 0.001 | 38.0 | 50.4 | 0.001 |
| Employed (%) | 78.9 | 53.0 | 0.001 | 89.8 | 80.3 | 0.001 |
| Body weight classification (%) | 0.001 | 0.001 | ||||
| Normal weight | 69.8 | 62.6 | 79.4 | 87.8 | ||
| Overweight | 27.0 | 30.8 | 17.5 | 10.1 | ||
| Obesity | 3.2 | 6.6 | 3.1 | 2.1 | ||
| Blood pressure classification (%) | 0.001 | 0.001 | ||||
| Normotension | 28.7 | 35.0 | 51.2 | 75.7 | ||
| Prehypertension | 41.4 | 36.8 | 41.1 | 21.3 | ||
| Stage 1 hypertension | 19.1 | 17.5 | 6.5 | 2.6 | ||
| Stage 2 hypertension | 10.8 | 10.7 | 1.2 | 0.3 |