Table 1. Baseline characteristics according to different clinical categories of FPG.
| Characteristic | Overall | LFG | NFG | IFG | DM | P value |
|---|---|---|---|---|---|---|
| No. of cases | 148755 | 2520 | 80456 | 50414 | 15365 | |
| Person-year (total) | 789150.10 | 13406.89 | 428798.23 | 266541.03 | 80403.95 | |
| Sex [n (%)] | <0.001 | |||||
| Men | 64013 (43.0) | 1185 (47.0) | 35638 (44.3) | 21088 (41.8) | 6102 (39.7) | |
| Women | 84742 (57.0) | 1335 (53.0) | 44818 (55.7) | 29326 (58.2) | 9263 (60.3) | |
| Age, years [M (P25, P75)] | 60.00 [51.00, 68.00] | 61.00 [51.00, 68.00] | 59.00 [49.00, 67.00] | 62.00 [53.00, 69.00] | 62.00 [55.00, 70.00] | <0.001 |
| SBP, mmHg [M (P25, P75)] | 130.00 [120.00, 140.00] | 128.00 [115.88, 140.00] | 128.00 [120.00, 138.00] | 130.00 [120.00, 140.00] | 134.00 [120.00, 146.00] | <0.001 |
| DBP, mmHg [M (P25, P75)] | 79.00 [70.00, 84.00] | 80.00 [70.00, 86.00] | 78.00 [70.00, 84.00] | 80.00 [72.00, 84.00] | 80.00 [72.00, 86.00] | <0.001 |
| BMI, kg/m2 [M (P25, P75)] | 22.87 [20.96, 24.97] | 22.47 [20.55, 24.44] | 22.68 [20.83, 24.67] | 23.05 [21.10, 25.22] | 23.53 [21.36, 25.81] | <0.001 |
| FPG, mmol/L [M (P25, P75)] | 5.40 [4.93, 6.00] | 3.64 [3.44, 3.80] | 5.00 [4.68, 5.26] | 5.95 [5.70, 6.25] | 8.10 [7.40, 9.60] | <0.001 |
| Cigarette smoking [n (%)] | <0.001 | |||||
| Never smoking | 114881 (77.2) | 1763 (70.0) | 61887 (76.9) | 39320 (78.0) | 11911 (77.5) | |
| Former smoking | 6582 (4.4) | 153 (6.1) | 3323 (4.1) | 2296 (4.6) | 810 (5.3) | |
| Current smoking | 27292 (18.3) | 604 (24.0) | 15246 (18.9) | 8798 (17.5) | 2644 (17.2) | |
| Physical exercise [n (%)] | <0.001 | |||||
| Every day | 17824 (12.0) | 208 (8.3) | 9877 (12.3) | 6062 (12.0) | 1677 (10.9) | |
| More than once a week | 8328 (5.6) | 94 (3.7) | 4924 (6.1) | 2843 (5.6) | 467 (3.0) | |
| Occasionally | 13777 (9.3) | 186 (7.4) | 7845 (9.8) | 4621 (9.2) | 1125 (7.3) | |
| Never | 108826 (73.2) | 2032 (80.6) | 57810 (71.9) | 36888 (73.2) | 12096 (78.7) | |
| Alcohol consumption [n (%)] | <0.001 | |||||
| Never drinking | 114290 (76.8) | 1875 (74.4) | 61944 (77.0) | 38638 (76.6) | 11833 (77.0) | |
| Occasionally drinking | 9800 (6.6) | 171 (6.8) | 5317 (6.6) | 3287 (6.5) | 1025 (6.7) | |
| Often drinking | 7723 (5.2) | 131 (5.2) | 4290 (5.3) | 2617 (5.2) | 685 (4.5) | |
| Every day | 16942 (11.4) | 343 (13.6) | 8905 (11.1) | 5872 (11.6) | 1822 (11.9) | |
| All-cause mortality [n (%)] | 10345 (7.0) | 197 (7.8) | 4725 (5.9) | 3862 (6.7) | 1561 (10.2) | <0.001 |
| Cancer mortality [n (%)] | 2845 (1.9) | 60 (2.4) | 1395 (1.7) | 1021 (2.0) | 369 (2.4) | <0.001 |
Abbreviations: FPG, fasting plasma glucose; LFG, low fasting glucose; NFG, normal fasting glucose; IFG, impaired fasting glucose; DM, diabetes mellitus; BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure