Table 1. Characteristics of 18- to 65-y-old, normotensive participants in 20061.
| Men (n 1441) | Women (n 1812) | ||||
|---|---|---|---|---|---|
| Mean or % | 95% CI | Mean or % | 95% CI | P value2 | |
| Age (years) | 45.4 | 44.9, 46.0 | 45.6 | 45.1, 46.0 | 0.700 |
| SBP (mm Hg) | 116.7 | 116.2, 17.3 | 113.0 | 112.5, 113.5 | <0.001 |
| DBP (mm Hg) | 76.6 | 76.3, 77.0 | 74.0 | 73.7, 74.4 | <0.001 |
| BMI (kg/m2) | 22.8 | 22.6, 22.9 | 23.0 | 22.9, 23.2 | 0.027 |
| <18.5 kg/m2 (%) | 5.0 | 3.9, 6.1 | 5.6 | 4.5, 6.6 | 0.190 |
| 18.5- kg/m2 (%) | 50.4 | 47.8, 53.0 | 47.2 | 44.9, 49.5 | |
| 23- kg/m2 (%) | 22.7 | 20.5, 24.9 | 22.6 | 20.7, 24.5 | |
| 25- kg/m2 (%) | 21.9 | 19.8, 24.1 | 24.7 | 22.7, 26.6 | |
| WC (cm) | 81.5 | 81.1, 82.0 | 78.7 | 78.3, 79.1 | <0.001 |
| HC (cm) | 92.7 | 92.4, 93.1 | 92.8 | 92.5, 93.1 | 0.780 |
| WHR | 0.88 | 0.88, 0.88 | 0.85 | 0.84, 0.85 | <0.001 |
| WSR | 0.49 | 0.49, 0.49 | 0.50 | 0.50, 0.51 | <0.001 |
| Ever smoked cigarettes (%) | 65.5 | 63.1, 68.0 | 2.7 | 1.9, 3.4 | <0.001 |
| Alcohol drinker (%) | 61.9 | 59.4, 64.4 | 8.9 | 7.6, 10.2 | <0.001 |
| Urban residence (%) | 29.6 | 27.2, 31.9 | 28.5 | 26.5, 30.6 | 0.520 |
| Daily salt intake (g/d) | |||||
| <6 g/d (%) | 21.2 | 19.0, 23.4 | 30.4 | 28.2, 32.6 | <0.001 |
| 6- g/d (%) | 51.8 | 49.2, 54.5 | 49.1 | 46.7, 51.5 | |
| 12- g/d (%) | 17.9 | 15.8, 19.9 | 12.7 | 11.1, 14.3 | |
| 18- g/d (%) | 9.2 | 7.6, 10.7 | 7.9 | 6.6, 9.2 | |
SBP, systolic blood pressure; DBP, diastolic blood pressure; BMI, body mass index; WC, waist circumference; HC, hip circumference; WHR, waist:hip ratio; WSR, waist:stature ratio.
1 Values are means or percentages with 95% CI, n = 3253 (excluded participants with implausible anthropometric indices, e.g. WC <45 or >150 cm).
2 Men compared with women (independent t test for continuous variables or x2 test for categorical variables).