Table 1 Baseline Information of the Cohort [n (%)/Mean ± Standard Deviation]
Variable | Classification | Total (n = 1545) | Male (n = 739) | Female (n = 806) | P values |
|---|---|---|---|---|---|
Age | 68.21 (4.81) | 68.62 (4.91) | 67.72 (4.60) | < 0.001 | |
Age group | 60–64 | 403 (26.08) | 174 (23.55) | 229 (28.41) | 0.001 |
65–69 | 528 (34.17) | 243 (32.88) | 285 (35.36) | ||
70–74 | 436 (28.22) | 214 (28.96) | 222 (27.54) | ||
75–85 | 178 (11.52) | 108 (14.61) | 70 (8.68) | ||
Marital status | Living alone | 205 (13.65) | 63 (8.82) | 142 (18.02) | < 0.001 |
Cohabitation | 1297 (86.35) | 651 (91.18) | 646 (81.98) | ||
Annual household income | < 50,000 | 309 (20.59) | 134 (18.77) | 175 (22.24) | 0.11 |
50,000–100,000 | 882 (58.76) | 439 (61.48) | 443 (56.29) | ||
> 100,000 | 310 (20.65) | 141 (19.75) | 169 (21.47) | ||
Educational degree | Illiteracy | 232 (15.02) | 61 (8.25) | 171 (21.22) | < 0.001 |
Primary school | 910 (58.90) | 433 (58.59) | 477 (59.18) | ||
Junior high school | 350 (22.65) | 215 (29.09) | 135 (16.75) | ||
Senior high school and above | 53 (3.40) | 30 (4.06) | 23 (2.85) | ||
Occupation before retirement | Farmers | 739 (47.83) | 343 (46.41) | 396 (49.13) | < 0.001 |
Blue-collar workers | 705 (45.63) | 328 (44.38) | 377 (46.77) | ||
White-collar workers | 101 (6.54) | 68 (9.20) | 33 (4.09) | ||
BMI, kg/m2 | 24.51 (3.02) | 24.36 (2.88) | 24.54 (3.18) | 0.55 | |
BMI group | 0.15 | ||||
BMI < 24 | Normal | 689 (45.93) | 329 (46.08) | 360 (45.80) | |
BMI ≥ 24 and < 28 | Overweight | 167 (11.13) | 68 (9.52) | 99 (12.60) | |
BMI ≥ 28 | Obese | 644 (42.93) | 317 (44.40) | 327 (41.60) | |
Smokers | No | 1189 (76.96) | 450 (60.89) | 739 (91.69) | < 0.001 |
Yes | 356 (23.04) | 289 (39.11) | 67 (8.31) | ||
ETS | No | 995 (64.40) | 432 (58.46) | 563 (69.85) | < 0.001 |
Yes | 550 (35.60) | 307 (41.54) | 243 (30.15) | ||
Anxiety | No | 1360 (96.25) | 634 (96.65) | 726 (95.90) | 0.49 |
Yes | 53 (3.75) | 22 (3.35) | 31 (4.10) | ||
Depression | No | 1255 (81.34) | 620 (83.90) | 635 (78.98) | 0.02 |
Yes | 288 (18.66) | 119 (16.10) | 169 (21.02) | ||
Waistline | Normal | 488 (32.53) | 298 (41.74) | 190 (24.17) | < 0.001 |
Abnormal | 1012 (67.47) | 416 (58.26) | 596 (75.83) | ||
SBP, mmHg | 150.71 (20.02) | 149.92 (19.33) | 151.37 (20.64) | 0.15 | |
< 140 | 451 (30.00) | 227 (31.80) | 224 (28.50) | 0.23 | |
140–18 | 927 (61.80) | 435 (60.90) | 492 (62.50) | ||
≥ 180 | 123 (8.20) | 52 (7.30) | 71 (9.0) | ||
DBP, mmHg | 81.32 (10.73) | 83.24 (11.08) | 79.68 (10.12) | < 0.001 | |
< 90 | 1184 (78.88) | 519 (72.69) | 665 (84.50) | < 0.001 | |
< 110 | 307 (20.45) | 188 (26.33) | 119 (15.12) | ||
≥ 110 | 10 (0.67) | 7 (0.98) | 3 (0.38) | ||
HDL, mmol/L | ≥ 1.0 | 75 (5.09) | 32 (4.58) | 43 (5.54) | 0.477 |
< 1.0 | 1399 (94.91) | 666 (95.42) | 733 (94.46) | ||
TG, mmol/L | < 1.7 | 1002 (69.98) | 504 (76.13) | 498 (64.93) | < 0.001 |
≥ 1.7 | 427 (30.02) | 158 (23.87) | 269 (35.07) | ||
TC, mmol/L | < 5.7 | 1095 (73.10) | 576 (80.79) | 519 (66.11) | < 0.001 |
≥ 5.7 | 403 (26.90) | 137 (19.21) | 266 (33.89) | ||
LDL, mmol/L | < 3.3 | 1234 (82.27) | 628 (88.08) | 606 (77.00) | < 0.001 |
≥ 3.3 | 266 (17.73) | 85 (11.92) | 181 (23.00) |