Table 1. Characteristics of study participants of both cross-sectional and longitudinal gene associated studies among a Chinese Aged Population Sample.
| Cross-sectional Study (2 014) | Longitudinal Study (742) | |||||
| Variables | Men | Women | p | Men | Women | p |
| N | 798 | 1,216 | 279 | 463 | ||
| Age (years) | 72.37±6.91 | 70.35±6.20 | <0.001* | 77.17±4.63 | 75.02±4.72 | <0.001* |
| BMI (kg/m2) | 25.00±3.03 | 25.03±3.63 | 0.848 | 25.26±2.87 | 25.69±3.31 | 0.061 |
| Waist circumference (cm) | 91.34±8.40 | 84.34±8.91 | <0.001* | 89.50±8.31 | 85.40±8.20 | <0.001* |
| Smoke, N (%) | <0.001* | <0.001* | ||||
| Never smoker, | 369 (46.2) | 1104 (90.8) | 131 (47.0) | 410 (88.6) | ||
| Former smoker | 253 (31.7) | 61 (5.0) | 81 (29.0) | 19 (4.1) | ||
| Current smoker | 176 (22.1) | 51 (4.2) | 67 (24.0) | 34 (7.3) | ||
| Current drinker, N (%) | 377 (47.2) | 100 (8.2) | <0.001* | 80 (28.7) | 29 (6.3) | <0.001* |
| Education level, N (%) | <0.001* | <0.001* | ||||
| Primary school or lower | 144 (18.0) | 420 (34.5) | 68 (24.4) | 222 (47.9) | ||
| Middle school or High school | 279 (35.0) | 536 (44.1) | 107 (38.4) | 170 (36.7) | ||
| University or above | 375 (47.0) | 250 (21.4) | 104 (37.3) | 71 (15.3) | ||
| Physical activity, N (%) | 0.122 | <0.001 | ||||
| < one hour per day | 99 (12.4) | 184 (15.1) | 25 (9.0) | 86 (18.6) | ||
| 1 - 3 hours per day | 629 (78.8) | 911 (74.9) | 220 (78.9) | 350 (75.8) | ||
| ≥ 4 hours per day | 70 (8.8) | 121 (10.0) | 34 (12.2) | 26 (5.6) | ||
| Family diseases history, N (%) | ||||||
| Coronary heart disease | 181 (22.7) | 270 (22.2) | 0.801 | 52 (18.8) | 76 (16.4) | 0.412 |
| Diabetes | 126 (15.8) | 237 (19.5) | 0.035* | 20 (7.2) | 39 (8.4) | 0.559 |
| Hypertension | 282 (35.3) | 563 (46.3) | <0.001* | 91 (32.9) | 192 (41.5) | 0.020* |
| SBP, mmHg | 136.72±17.8 | 140.60±20.8 | <0.001* | 133.6±17.9 | 135.57±21.6 | 0.182 |
| DBP, mmHg | 78.40±9.6 | 76.72±9.9 | <0.001* | 78.47±9.6 | 77.84±11.1 | 0.430 |
| FPG, mmol/L | 6.12±1.5 | 6.10±1.7 | 0.771 | 5.89±1.5 | 6.01±1.7 | 0.324 |
| Serum HDL-c, mmol/L | 1.31±0.3 | 1.47±0.3 | <0.001* | 1.26±0.3 | 1.41±0.3 | <0.001* |
| Serum TG, mmol/L | 1.52±0.8 | 1.78±0.9 | <0.001* | 1.39±0.9 | 1.71±1.2 | <0.001* |
| Serum TC, mmol/L | 4.95±0.9 | 5.50±1.0 | <0.001* | 4.97±0.9 | 5.48±5.0 | <0.001* |
| CHD, N (%) | 204 (25.6) | 270 (22.2) | 0.188 | 90 (33.7) | 199 (42.4) | 0.020* |
| Stroke, N (%) | 111 (13.9) | 144 (11.8) | 0.172 | 29 (10.9) | 67 (14.3) | 0.181 |
The results are presented as mean ± SD or N (%).
*statistically significant.
doi:10.1371/journal.pone.0100548.t001