Variables | Overall (n = 29,900) | Non-DS (n = 28,123) | DS (n = 1777) | P value * |
---|---|---|---|---|
Age (year, mean ± SD) | 55.43 ± 12.356 | 55.38 ± 12.383 | 56.23 ± 11.894 | 0.005 |
Women (n, %) | 17,704 (59.21) | 16,504 (58.69) | 1200 (67.53) | < 0.001 |
Educational level (n, %) | ||||
 Elementary school or below | 13,324 (44.23) | 12,279 (43.66) | 945 (53.18) | < 0.001 |
 Junior high school | 11,647 (38.95) | 11,022 (39.19) | 625 (35.17) | |
 Senior high school or above | 5029 (16.82) | 4822 (17.15) | 207 (11.65) |  |
Marital status (n, %) | ||||
 Married/cohabiting | 26,968 (90.19) | 25,407 (90.34) | 1561 (87.84) | 0.002 |
 Widowed/separated/divorced | 2423 (8.10) | 2242 (7.97) | 181 (10.19) | |
 Single | 509 (1.71) | 474 (1.69) | 35 (1.97) | |
Average monthly income (n, %) | ||||
 < 500 RMB | 10,795 (36.10) | 9954 (35.39) | 841 (47.32) | < 0.001 |
 500- RMB | 9416 (31.49) | 8948 (31.82) | 468 (26.34) | |
 ≥ 1000 RMB | 9689 (32.41) | 9221 (32.79) | 468 (26.34) | |
Physical activity (n, %) | ||||
 Low | 9501 (31.78) | 8905 (31.66) | 596 (33.54) | 0.177 |
 Moderate | 11,009 (36.82) | 10,357 (36.83) | 652 (36.69) | |
 High | 9390 (31.40) | 8861 (31.51) | 529 (29.77) | |
Current smokers (n, %) | 6005 (20.08) | 5725 (20.36) | 280 (15.76) | < 0.001 |
Current drinkers (n, %) | 5219 (17.45) | 5008 (17.81) | 211 (11.87) | < 0.001 |
Chronic disease (n, %) | 17,755 (59.38) | 16,654 (59.50) | 1101 (62.06) | 0.033 |
Body mass index (kg/m2, mean ± SD) | 24.73 ± 3.569 | 24.75 (3.559) | 24.43 (3.708) | < 0.001 |
Waist circumference (cm, mean ± SD) | 83.70 ± 10.469 | 83.78 (10.450) | 82.41 (10.699) | < 0.001 |