Table 1 Baseline characteristics of the study participants from the MJ cohort according to FPG trajectory groups
Characteristics | Total (N = 50,919) | FPG trajectory | P value | ||
|---|---|---|---|---|---|
Stable (N = 32,481) | Low-increasing (N = 17,164) | High-increasing (N = 1274) | |||
Age, years | 40.1 [± 11.8] | 37.7 [± 11.0] | 43.9 [± 11.9] | 50.0 [± 11.6] |  < 0.001 |
Sex |  |  |  |  |  < 0.001 |
 Male | 25,942 (51.0) | 13,794 (42.5) | 11,301 (65.8) | 847 (66.5) |  |
 Female | 24,977 (49.0) | 18,687 (57.5) | 5863 (34.2) | 427 (33.5) |  |
Marital status |  |  |  |  |  < 0.001 |
 Unmarried | 10,543 (20.7) | 8182 (25.2) | 2290 (13.3) | 71 (5.6) |  |
 Married | 35,820 (70.4) | 21,681 (66.8) | 13,116 (76.4) | 1023 (80.3) |  |
 Divorced or widowed | 2595 (5.1) | 1442 (4.4) | 1041 (6.1) | 112 (8.8) |  |
Education level |  |  |  |  |  < 0.001 |
 Middle school or lower | 9471 (18.6) | 4999 (15.4) | 4028 (23.5) | 444 (34.9) |  |
 High school | 11,302 (22.2) | 7400 (22.8) | 3626 (21.1) | 276 (21.7) |  |
 Junior college | 12,131 (23.8) | 8325 (25.6) | 3619 (21.1) | 187 (14.7) |  |
 College or higher | 16,612 (32.6) | 10,895 (33.5) | 5402 (31.5) | 315 (24.7) |  |
Occupation |  |  |  |  |  < 0.001 |
 White collar | 24,848 (48.8) | 16,026 (49.3) | 8265 (48.2) | 557 (43.7) |  |
 Blue collar | 7963 (15.6) | 4859 (15.0) | 2925 (17.0) | 179 (14.1) |  |
 Self employed | 3630 (7.1) | 2309 (7.1) | 1214 (7.1) | 107 (8.4) |  |
 House wife/husband | 6996 (13.7) | 4336 (13.4) | 2414 (14.1) | 246 (19.3) |  |
 Other | 5328 (10.5) | 3636 (11.2) | 1580 (9.2) | 112 (8.8) |  |
 Body mass index, kg/m2 | 22.9 [± 3.3] | 22.1 [± 3.1] | 24.1 [± 3.2] | 25.9 [± 3.4] |  < 0.001 |
Smoking status |  |  |  |  |  < 0.001 |
 Never | 34,440 (67.6) | 22,839 (70.3) | 10,845 (63.2) | 756 (59.3) |  |
 Former | 3226 (6.3) | 1648 (5.1) | 1460 (8.5) | 118 (9.3) |  |
 Current | 9921 (19.5) | 5803 (17.8) | 3812 (22.2) | 306 (24.0) |  |
Drinking status |  |  |  |  |  < 0.001 |
 Never | 36,793 (72.3) | 24,451 (75.3) | 11,551 (67.3) | 791 (62.1) |  |
 Former | 1103 (2.2) | 589 (1.8) | 464 (2.7) | 50 (3.9) |  |
 Current | 9483 (18.6) | 5155 (15.9) | 3992 (23.3) | 336 (26.4) |  |
Physical activity |  |  |  |  |  < 0.001 |
 Inactive | 21,657 (42.5) | 14,527 (44.7) | 6652 (38.8) | 478 (37.5) |  |
 Low active | 13,518 (26.6) | 8845 (27.2) | 4380 (25.5) | 293 (23.0) |  |
 Medium active | 9225 (18.1) | 5468 (16.8) | 3467 (20.2) | 290 (22.8) |  |
 High active | 2812 (5.5) | 1531 (4.7) | 1193 (7.0) | 88 (6.9) |  |
 Very high active | 1559 (3.1) | 822 (2.5) | 689 (4.0) | 48 (3.8) |  |
Hypertension |  |  |  |  |  < 0.001 |
 No hypertension | 27,014 (53.1) | 19,899 (61.3) | 6791 (39.6) | 324 (25.4) |  |
 Pre-hypertension | 15,405 (30.3) | 8868 (27.3) | 6115 (35.6) | 422 (33.1) |  |
 Hypertension | 8500 (16.7) | 3714 (11.4) | 4258 (24.8) | 528 (41.4) |  |
 Dyslipidemia | 16,518 (32.4) | 8691 (26.8) | 7129 (41.5) | 698 (54.8) |  < 0.001 |
 FPG, mmol/L | 5.3 [0.5] | 5.1 [0.3] | 5.6 [0.4] | 6.2 [0.5] |  < 0.001 |