Table 1 Descriptive statistics for eligible individuals at baseline
Characteristics | Overall, N = 6792 | Male, n = 3494 | Female, n = 3298 | P value |
|---|---|---|---|---|
Age, mean (SD) | 58.30 (8.89) | 59.26 (8.95) | 57.28 (8.71) | < 0.001 |
In married, n (%) | 6137 (90.36) | 3246 (92.90) | 2891 (87.66) | < 0.001 |
Urban, n (%) | 2740 (40.34) | 1327 (37.98) | 1413 (42.84) | < 0.001 |
Education, n (%) | ||||
 Illiterate | 1364 (20.08) | 313 (8.96) | 1051 (31.87) | < 0.001 |
 Primary school | 2887 (42.51) | 1608 (46.02) | 1279 (38.78) | |
 Middle school and above | 2541 (37.41) | 1573 (45.02) | 968 (29.35) | |
Smoking, n (%) | ||||
 Never | 3915 (57.65) | 874 (25.01) | 3041 (92.24) | < 0.001 |
 Former | 1175 (17.30) | 1035 (29.63) | 140 (4.24) | |
 Current | 1701 (25.05) | 1585 (45.36) | 116 (3.52) | |
Alcohol use, n (%) | ||||
 Never | 4026 (59.28) | 1194 (34.17) | 2832 (85.87) | < 0.001 |
 Former | 399 (5.87) | 329 (9.42) | 70 (2.12) | |
 Current | 2367 (34.85) | 1971 (56.41) | 396 (12.01) | |
Lipid-lowering medication using, n (%) | 161 (1.71) | 57 (1.69) | 59 (1.73) | 0.900 |
Health insurance, n (%) a | 6438 (94.96) | 3329 (95.39) | 3109 (94.50) | 0.095 |
Socially active, n (%) | ||||
 None | 3925 (57.79) | 2049 (58.64) | 1876 (56.88) | 0.314 |
 Inactive | 1893 (27.87) | 949 (27.16) | 944 (28.63) | |
 Active | 974 (14.34) | 496 (14.20) | 478 (14.49) | |
Body mass index (kg/m2), n (%) b | ||||
 < 18.5 | 345 (5.21) | 194 (5.71) | 151 (4.69) | < 0.001 |
 18.5~23.9 | 3378 (51.06) | 1950 (57.37) | 1428 (44.39) | |
 24.0~27.9 | 2080 (31.44) | 952 (28.01) | 1128 (35.06) | |
 > 28.0 | 813 (12.29) | 303 (8.91) | 510 (15.86) |  |
Diabetes, n (%) | 931 (13.72) | 478 (13.69) | 453 (13.75) | 0.947 |
Hypertension, n (%) | 2717 (40.00) | 1355 (38.78) | 1362 (41.30) | 0.034 |
Total cholesterol (mg/dl), mean (SD) | 192.57 (38.19) | 188.25 (38.31) | 197.17 (37.52) | < 0.001 |
 < 200, n (%) | 4081 (61.13) | 2258 (65.62) | 1823 (56.35) | < 0.001 |
 200~239, n (%) | 1891 (28.33) | 882 (25.63) | 1009 (31.19) | |
 240+, n (%) | 704 (10.54) | 301 (8.75) | 403 (12.46) | |
LDL-c (mg/dl), mean (SD) | 116.57 (34.58) | 113.04 (34.38) | 120.31 (34.39) | < 0.001 |
 < 100, n (%) | 2152 (32.26) | 1242 (36.14) | 910 (28.15) | < 0.001 |
 100~129, n (%) | 2392 (35.86) | 1221 (35.53) | 1171 (36.22) | |
 130~159, n (%) | 1448 (21.72) | 695 (20.22) | 753 (23.29) | |
 160~189, n (%) | 501 (7.51) | 195 (5.67) | 306 (9.46) |  |
 190+, n (%) | 177 (2.65) | 84 (2.44) | 93 (2.88) | |
HDL-c (mg/dl), mean (SD) | 50.69 (14.71) | 50.35 (15.56) | 51.04 (13.73) | 0.054 |
 < 40, n (%) | 1643 (24.60) | 948 (27.54) | 695 (21.48) | < 0.001 |
 40~59, n (%) | 3505 (52.48) | 1713 (49.75) | 1792 (55.38) | |
 60+, n (%) | 1531 (22.92) | 782 (22.71) | 749 (23.14) | |
Triglycerides (mg/dl), mean (SD) | 128.79 (83.87) | 124.33 (83.88) | 133.52 (83.61) | < 0.001 |
 < 150, n (%) | 4908 (73.70) | 2605 (75.93) | 2303 (71.34) | < 0.001 |
 150~199, n (%) | 842 (12.65) | 382 (11.13) | 460 (14.25) | |
 200+, n (%) | 909 (13.65) | 444 (12.94) | 465 (14.41) | |