Table 1 Characteristic of eligible participants
Overall (n = 3501) | Male (n = 1893) | Female (n = 1608) | |
|---|---|---|---|
Age (years) | 52.0 ± 15.0 | 52.9 ± 15.2 | 51.2 ± 14.7 |
Ethnicity (N, %) | |||
Han | 3473(99.2) | 1874(99.0) | 1599(99.4) |
Other | 28(0.8) | 19(1.0) | 28(0.6) |
BMI (Kg/m2) | 23.4 ± 3.5 | 23.3 ± 3.4 | 23.4 ± 3.6 |
Nutrient intake | |||
Protein (g/d) | 65.9 ± 36.5 | 71.5 ± 40.4 | 61.1 ± 32.0 |
Calcium (mg/d) | 1501.6 ± 603.9 | 1564.6 ± 579.3 | 1448.1 ± 619.1 |
Potassium (mg/d) | 381.1 ± 211.1 | 389.4 ± 184.7 | 374.1 ± 231.0 |
Phosphorus (mg/d) | 866.6 ± 298.7 | 926.2 ± 298.9 | 815.9 ± 289.1 |
Magnesium (mg/d) | 238.4 ± 82.3 | 250.7 ± 83.3 | 228.0 ± 80.0 |
Sodium (mg/d) | 4893.5 ± 3366 | 5228.2 ± 3400.4 | 4609.2 ± 3310.9 |
Total energy intake (Kcal/d) | 1757.4 ± 566.5 | 1908.6 ± 604.8 | 1629.0 ± 497.1 |
PRAL (mEq/d) | 22.1 ± 18.6 | 25.3 ± 20.2 | 19.4 ± 16.7 |
NEAP (mEq/d) | 86.8 ± 53.9 | 90.4 ± 58.9 | 83.8 ± 49.1 |
DBP (mmHg) | 131.0 ± 21.2 | 132.6 ± 20.1 | 129.6 ± 22.0 |
SBP (mmHg) | 77.4 ± 11.5 | 79.1 ± 11.3 | 75.9 ± 11.5 |
Sedentary leisure time (h/d) | 4.9 ± 2.8 | 5.1 ± 2.8 | 4.8 ± 2.7 |
Physical activity time (h/d) | 1.1 ± 0.8 | 1.1 ± 0.8 | 1.0 ± 0.7 |
Hypertension (N, %) | 1076(30.7) | 550(29.1) | 526(32.7) |
Smoking (N, %) | 2546(72.7) | 1842(97.3) | 704(43.8) |
Alcohol (N, %) | 2171(62.0) | 1420(75.0) | 751(46.7) |
Education (N, %) | |||
≤ 6 years | 1674(47.8) | 1062(56.1) | 612(38.1) |
7–12 years | 1482(43.3) | 761(40.2) | 924(57.5) |
≥ 13 years | 345(9.9) | 70(3.7) | 72(4.5) |
Marital status (N, %) | |||
Unmarried | 329(9.4) | 178(9.4) | 151(9.4) |
Married | 3172(90.6) | 1715(90.6) | 1457(90.6) |