Table 1 Baseline characteristics of 7,649 study participants according to the baseline working mode
| Â | Total | No change | Changing job | Seasonal changes | Seasonal and job changes | P value |
|---|---|---|---|---|---|---|
Participants, n (%) | 7 649 (100.0) | 1 074 (14.0) | 417 (5.5) | 4 671 (61.1) | 1 487 (19.4) | Â |
Age (years) | 52.7 (46.1, 61.0) | 56.2 (48.9, 65.1) | 47.7 (41.3, 53.4) | 54.0 (47.8, 62.3) | 48.1 (42.6, 53.6) |  < 0.001* |
BMI (kg/m2) | 23.7 (21.4, 26.2) | 23.8 (21.3, 26.4) | 24.4 (22.1, 26.7) | 23.5 (21.2, 26.0) | 24.0 (21.4, 26.2) |  < 0.001* |
TC (mmol/L) | 4.9 (4.3, 5.5) | 4.8 (4.3, 5.5) | 4.9 (4.3, 5.4) | 4.9 (4.3, 5.5) | 4.8 (4.2,5.4) | 0.016* |
TG (mmol/L) | 1.4 (1.0, 2.0) | 1.4 (0.9, 2.0) | 1.4 (1.0, 2.1) | 1.4 (1.0, 2.0) | 1.4 (1.0, 2.2) | 0.002* |
LDL-C (mmol/L) | 2.7 (2.2, 3.2) | 2.6 (2.2, 3.2) | 2.7 (2.1, 3.2) | 2.7 (2.2, 3.3) | 2.6 (2.1, 3.1) | 0.051* |
HDL-C (mmol/L) | 1.5 (1.3, 1.7) | 1.5 (1.3, 1.7) | 1.4 (1.2, 1.7) | 1.5 (1.3, 1.7) | 1.4 (1.2, 1.7) |  < 0.001* |
Leisure sedentary time (h/week) | 14.0 (7.0, 21.0) | 14.0 (7.0, 21.0) | 14.0 (7.0, 21.0) | 14.0 (7.0, 21.0) | 14.00 (7.0, 21.0) |  < 0.001* |
Total energy intake (kcal/week) | 10,447.9 (8121.3, 13,440.8) | 10,110.5 (7847.2, 12,889.7) | 11,132.3 (8651.5, 14,170.1) | 10,235.32 (7950.2, 13,234.1) | 11,349.2 (8886.3, 14,334.7) |  < 0.001* |
Sleeping time (h/d) | 8.0 (6.0, 8.0) | 7.0 (6.0, 8.0) | 7.0 (6.0, 8.0) | 8.0 (6.0, 8.0) | 7.0 (6.0, 8.0) |  < 0.001* |
OPA (MET-h/day) | 19.9 (11.9, 31.1) | 21.1 (10.6, 42.3) | 36.3 (20.2, 59.4) | 17.3 (10.7, 24.6) | 31.7 (20.1, 45.2) |  < 0.001* |
TPA, n (%) | 7270 (95.0) | 986 (91.8) | 379(90.9) | 4500 (96.3) | 1405 (94.5) |  < 0.001** |
DPA, n (%) | 7265 (95.0) | 1012 (94.2) | 391 (93.8) | 4471 95.7) | 1391 (93.5) | 0.002** |
LTPA, n (%) | 915 (12.0) | 158 (14.7) | 90 (21.6) | 456 (9.8) | 211 (14.2) |  < 0.001** |
Men, n (%) | 2798 (36.6) | 310 (28.9) | 195 (46.8) | 1534 (32.8) | 759 (51.0) |  < 0.001** |
Married/Cohabitating, n (%) | 6900 (90.2) | 885 (82.4) | 389 (92.6) | 4230 (90.6) | 1399 (94.1) |  < 0.001** |
Smoking, n (%) | 1423 (18.6) | 168 (15.6) | 93 (22.3) | 800 (17.1) | 362 (24.3) |  < 0.001** |
Alcohol drinking, n (%) | 3643 (47.6) | 473 (44.0) | 263 (63.1) | 1995 (42.7) | 912 (61.3) |  < 0.001** |
Tea intake, n (%) | 992 (13.0) | 142 (13.2) | 66 (15.8) | 586 (12.5) | 198 (13.3) | 0.264** |
Beverage intake, n (%) | 260 (3.4) | 35 (3.3) | 21 (5.0) | 131 (2.8) | 73 (4.9) |  < 0.001** |
Ethnic, n (%) |  |  |  |  |  |  < 0.001** |
  Miao | 1990 (26.0) | 349 (32.5) | 138 (33.1) | 1114 (23.8) | 389 (26.2) |  |
  Dong | 3283 (42.9) | 405 (37.7) | 138 (33.1) | 2136 (45.7) | 604 (40.6) |  |
  Bouyei | 2376 (31.1) | 320 (29.8) | 141 (33.8) | 1421 (30.4) | 494 (33.2) |  |
Highest education completed, n (%) |  |  |  |  |  |  < 0.001** |
  No formal school | 4442 (58.1) | 695 (64.7) | 124 (29.7) | 3079 (65.9) | 544 (36.6) |  |
  Primary school | 1502 (19.6) | 175 (16.3) | 99 (23.7) | 881 (18.9) | 347 (23.3) |  |
  Middle school | 1263 (16.5) | 143 (13.3) | 101 (24.2) | 600 (12.8) | 419 (28.2) |  |
  High school | 290 (3.8) | 41 (3.8) | 48 (11.5) | 103 (2.2) | 98 (6.6) |  |
  College or university | 152 (2.0) | 20 (1.9) | 45 (10.8) | 8 (0.2) | 79 (5.3) |  |
Annual income, whole family (Yuan/year), n (%) |  |  |  |  |  |  < 0.001** |
   < 12 000 | 3191 (41.7) | 480 (44.7) | 88 (21.1) | 2176 (46.6) | 447 (30.1) |  |
  12 000 − 19 999 | 1971 (25.8) | 211 (19.6) | 86 (20.6) | 1250 (26.8) | 424 (28.5) |  |
  20 000 − 59 999 | 1935 (25.3) | 280 (26.1) | 153 (36.7) | 1032 (22.1) | 470 (31.6) |  |
  60 000 − 99 999 | 359 (4.7) | 67 (6.2) | 53 (12.7) | 136 (2.9) | 103 (6.9) |  |
   ≥ 100 000 | 188 (2.5) | 35 (3.3) | 37 (8.9) | 74 (1.6) | 42 (2.8) |  |