Table 3.
Baseline characteristics of IFG and normal groups defined by different cut-off points before and after PSM in male patients.
| Cut-off point of IFG | Age | Hypertension | Smoking | Drinking | Dyslipidemia | Chronic kidney disease | Previous ischemic stroke | CHD | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 5.6 mmol/L | Before PSM | NG (n = 989) | 57 (49–64) | 622 (62.9%) | 646 (65.3%) | 341 (34.5%) | 487 (49.2%) | 11 (1.1%) | 108 (10.9%) | 697 (70.5%) |
| IFG (n = 307) | 57 (50–64) | 200 (65.1%) | 200 (65.1%) | 96 (31.3%) | 163 (53.1%) | 7 (2.3%) | 24 (7.8%) | 217 (70.7%) | ||
| p value | 0.469 | 0.474 | 0.956 | 0.299 | 0.238 | 0.159 | 0.116 | 0.944 | ||
| After PSM | NG (n = 306) | 57 ± 11 | 188 (61.4%) | 198 (64.7%) | 80 (26.1%) | 151 (49.3%) | 4 (1.3%) | 38 (12.4%) | 231 (75.5%) | |
| IFG (n = 306) | 57 ± 10 | 199 (65%) | 200 (65.4%) | 96 (31.4%) | 162 (52.9%) | 7 (2.3%) | 24 (7.8%) | 216 (70.6%) | ||
| p value | 0.703 | 0.356 | 0.865 | 0.153 | 0.374 | 0.361 | 0.061 | 0.172 | ||
| 5.7 mmol/L | Before PSM | NG (n = 1031) | 57 (49–64) | 648 (62.9%) | 671 (65.1%) | 350 (33.9%) | 512 (49.7%) | 12 (1.2%) | 111 (10.8%) | 722 (70%) |
| IFG (n = 265) | 56 (50–64) | 174 (65.7%) | 175 (66%) | 87 (32.8%) | 138 (52.1%) | 6 (2.3%) | 21 (7.9%) | 192 (72.5%) | ||
| p value | 0.748 | 0.397 | 0.771 | 0.731 | 0.483 | 0.233 | 0.173 | 0.440 | ||
| After PSM | NG (n = 265) | 58 ± 11 | 158 (59.6%) | 176 (66.4%) | 80 (30.2%) | 116 (43.8%) | 2 (0.8%) | 33 (12.5%) | 196 (74%) | |
| IFG (n = 265) | 57 ± 10 | 174 (65.7%) | 175 (66%) | 87 (32.8%) | 138 (52.1%) | 6 (2.3%) | 21 (7.9%) | 192 (72.5%) | ||
| p value | 0.493 | 0.151 | 0.927 | 0.513 | 0.056 | 0.285 | 0.085 | 0.695 | ||
| 5.8 mmol/L | Before PSM | NG (n = 1081) | 57 (49–64) | 679 (62.8%) | 700 (64.8%) | 365 (33.8%) | 538 (49.8%) | 13 (1.2%) | 112 (10.4%) | 747 (69.1%) |
| IFG (n = 215) | 58 (51–65) | 143 (66.5%) | 146 (67.9%) | 72 (33.5%) | 112 (52.1%) | 5 (2.3%) | 20 (9.3%) | 167 (77.7%) | ||
| p value | 0.096 | 0.304 | 0.375 | 0.938 | 0.534 | 0.202 | 0.639 | 0.012 | ||
| After PSM | NG (n = 204) | 57 ± 9 | 136 (66.7%) | 142 (69.6%) | 65 (31.9%) | 108 (52.9%) | 1 (0.5%) | 20 (9.8%) | 152 (74.5%) | |
| IFG (n = 204) | 57 ± 10 | 136 (66.7%) | 141 (69.1%) | 70 (34.3%) | 107 (52.5%) | 5 (2.5%) | 19 (9.3%) | 158 (77.5%) | ||
| p value | 0.987 | 1 | 0.914 | 0.599 | 0.921 | 0.215 | 0.866 | 0.487 | ||
| 5.9 mmol/L | Before PSM | NG (n = 1109) | 57 (49–64) | 693 (62.5%) | 713 (64.3%) | 371 (33.5%) | 555 (50%) | 14 (1.3%) | 113 (10.2%) | 769 (69.3%) |
| IFG (n = 187) | 58 (51–65) | 129 (69%) | 133 (71.1%) | 66 (35.3%) | 95 (50.8%) | 4 (2.1%) | 19 (10.2%) | 145 (77.5%) | ||
| p value | 0.069 | 0.088 | 0.070 | 0.622 | 0.848 | 0.314 | 0.990 | 0.023 | ||
| After PSM | Normal (n = 166) | 57 ± 9 | 116 (69.9%) | 120 (72.3%) | 53 (31.9%) | 90 (54.2%) | 0 (0%) | 11 (6.6%) | 120 (72.3%) | |
| IFG (n = 166) | 57 ± 9 | 116 (69.9%) | 120 (72.3%) | 60 (36.1%) | 90 (54.2%) | 3 (1.8%) | 11 (6.6%) | 126 (75.9%) | ||
| p value | 1 | 1 | 0.720 | 0.417 | 1 | 0.248 | 1 | 0.452 | ||
| 6 mmol/L | Before PSM | NG (n = 1144) | 57 (49–64) | 716 (62.6%) | 738 (64.5%) | 380 (33.2%) | 571 (49.9%) | 15 (1.3%) | 118 (10.3%) | 795 (69.5%) |
| IFG (n = 152) | 60 (51–66) | 106 (69.7%) | 108 (71.1%) | 57 (37.5%) | 79 (52%) | 3 (2.0%) | 14 (9.2%) | 119 (78.3%) | ||
| p value | 0.013 | 0.086 | 0.111 | 0.294 | 0.633 | 0.459 | 0.672 | 0.025 | ||
| After PSM | NG (n = 152) | 60 ± 9 | 98 (64.5%) | 106 (69.7%) | 45 (29.6%) | 65 (42.8%) | 0 (0%) | 23 (15.1%) | 124 (81.6%) | |
| IFG (n = 152) | 59 ± 10 | 106 (69.7%) | 108 (71.1%) | 57 (37.5%) | 79 (52%) | 3 (2%) | 14 (9.2%) | 119 (78.3%) | ||
| p value | 0.100 | 0.329 | 0.802 | 0.145 | 0.108 | 0.248 | 0.114 | 0.474 | ||
| 6.1 mmol/L | Before PSM | NG (n = 1168) | 57 (49–64) | 730 (62.5%) | 754 (64.6%) | 388 (33.2%) | 583 (49.9%) | 16 (1.4%) | 119 (10.2%) | 816 (69.9%) |
| IFG (n = 128) | 61 (51–66) | 92 (71.9%) | 92 (71.9%) | 49 (38.3%) | 67 (52.3%) | 2 (1.6%) | 13 (10.2%) | 98 (76.6%) | ||
| p value | 0.023 | 0.037 | 0.099 | 0.250 | 0.602 | 0.696 | 0.991 | 0.115 | ||
| After PSM | NG (n = 128) | 60 (51–67) | 92 (71.9%) | 83 (64.8%) | 37 (28.9%) | 57 (44.5%) | 1 (0.8%) | 23 (18%) | 101 (78.9%) | |
| IFG (n = 128) | 61 (51–66) | 92 (71.9%) | 92 (71.9%) | 49 (38.3%) | 67 (52.3%) | 2 (1.6%) | 13 (10.2%) | 98 (76.6%) | ||
| p value | 0.708 | 1 | 0.226 | 0.112 | 0.211 | 1 | 0.072 | 0.652 | ||
CHD: coronary heart disease; IFG: impaired fasting glucose; NG: normal glucose; PSM: propensity score match.