Research Article
Diagnostic Model of In-Hospital Mortality in Patients with Acute ST-Segment Elevation Myocardial Infarction Used Artificial Intelligence Methods
Table 1
Demographic and clinical characteristics of patient with and without in-hospital mortality.
| | Characteristic | Training datasets | Test datasets | Validation datasets | | Original | Downsampling | | Total (n = 44966) | In-hospital deaths (n = 5169) | In-hospital survivors (n = 39827) | value | Total (n = 10347) | In-hospital deaths (n = 5169) | In-hospital survivors (n = 5178) | value | Total (n = 43581) | In-hospital deaths (n = 4895) | In-hospital survivors (n = 38686) | value | Total (n = 40498) | In-hospital deaths (n = 4001) | In-hospital survivors (n = 36497) | value |
| | Age (year, x ± s) (18, 90) | 65 ± 14 | 72 ± 14 | 64 ± 13 | <0.001 | 68 ± 14 | 72 ± 14 | 64 ± 13 | <0.001 | 64 ± 13 | 71 ± 13 | 64 ± 13 | <0.001 | 64 ± 13 | 71 ± 13 | 64 ± 13 | <0.001 | | Female sex, n (%) | 15109 (33.6) | 2245 (43.4) | 12864 (32.3) | <0.001 | 3940 (38.1) | 2245 (43.4) | 1695 (32.7) | <0.001 | 14211 (32.6) | 2011 (41.1) | 12200 (31.5) | <0.001 | 12827 (31.7) | 1608 (40.2) | 11219 (30.7) | <0.001 | | Medical history, n (%) | | | | | | | | | | | | | | | | | | Hypertension | 32570 (72.4) | 3404 (65.9) | 29166 (73.3) | <0.001 | 7201 (69.6) | 3,404 (65.9) | 3797 (73.3) | <0.001 | 30182 (69.3) | 2,920 (59.7) | 27262 (70.5) | <0.001 | 28411 (70.2) | 2365 (59.1) | 26046 (71.3) | <0.001 | | Old myocardial infarction | 5260 (11.7) | 530 (10.3) | 4730 (11.9) | 0.001 | 1121 (10.8) | 530 (10.3) | 591 (11.4) | 0.058 | 5088 (11.7) | 406 (8.3) | 4682 (12.1) | 0.001 | 5048 (12.5) | 391 (9.8) | 4657 (12.8) | 0.001 | | Diabetes | 2479 (5.6) | 495 (9.6) | 1984 (5) | <0.001 | 786 (7.6) | 495 (9.6) | 291 (5.6) | <0.001 | 3844 (8.9) | 751 (15.3) | 3093 (8) | <0.001 | 3804 (9.4) | 705 (17.6) | 3099 (8.5) | <0.001 | | Cardiogenic shock, n(%) | 5632 (12.5) | 2077 (40.2) | 3555 (8.9) | <0.001 | 2542 (24.6) | 2077 (40.2) | 465 (9) | <0.001 | 5658 (13) | 2012 (41.1) | 3646 (9.4) | <0.001 | 5742 (14.2) | 2,024 (50.6) | 3718 (10.2) | <0.001 | | AFa, n (%) | 3173 (7.1) | 414 (8) | 2759 (6.9) | 0.004 | 771 (7.5) | 414 (8) | 357 (6.9) | 0.031 | 3300 (7.6) | 436 (8.9) | 2864 (7.4) | 0.004 | 3204 (7.9) | 379 (9.5) | 2825 (7.8) | 0.004 | | VFb, n (%) | 3403 (7.6) | 975 (18.9) | 2428 (6.1) | <0.001 | 1266 (12.2) | 975 (18.9) | 291 (5.6) | <0.001 | 3431 (7.9) | 1010 (20.6) | 2421 (6.3) | <0.001 | 3336 (8.2) | 931 (23.3) | 2405 (6.6) | <0.001 | | In-hospital bleeding, n (%) | 1053 (2.3) | 343 (6.6) | 710 (1.8) | <0.001 | 429 (4.1) | 343 (6.6) | 86 (1.6) | <0.001 | 822 (1.9) | 306 (6.3) | 516 (1.3) | <0.001 | 643 (1.6) | 296 (7.4) | 347 (1) | <0.001 | | III AVBc, n (%) | 1136 (2.5) | 228 (4.4) | 908 (2.3) | <0.001 | 357 (3.5) | 228 (4.4) | 129 (2.5) | <0.001 | 1158 (2.7) | 236 (4.8) | 922 (2.4) | <0.001 | 1187 (2.9) | 267 (6.7) | 920 (2.5) | <0.001 | | II AVBc, n (%) | 332 (0.7) | 31 (0.6) | 301 (0.8) | 0.219 | 68 (0.7) | 31 (0.6) | 37 (0.7) | 0.470 | 321 (0.7) | 31 (0.6) | 290 (0.7) | 0.370 | 313 (0.8) | 29 (0.7) | 284 (0.8) | 0.715 | | I AVBc, n (%) | 364 (0.8) | 46 (0.9) | 318 (0.8) | 0.490 | 87 (0.8) | 46 (0.9) | 41 (0.8) | 0.585 | 369 (0.8) | 40 (0.8) | 329 (0.9) | 0.811 | 369 (0.9) | 30 (0.7) | 339 (0.9) | 0.259 | | PCId, n (%) | 29110 (64.7) | 1611 (31.2) | 27499 (69) | <0.001 | 5158 (49.9) | 1611 (31.2) | 3547 (68.5) | <0.001 | 29364 (67.4) | 1677 (34.3) | 27687 (71.6) | <0.001 | 29246 (72.2) | 1,595 (39.9) | 27651 (75.8) | <0.001 | | CABGe, n (%) | 2397 (5.3) | 148 (2.9) | 2249 (5.6) | <0.001 | 442 (4.3) | 148 (2.9) | 294 (5.7) | <0.001 | 2244 (5.1) | 166 (3.4) | 2078 (5.4) | <0.001 | 1940 (4.8) | 129 (3.2) | 1811 (5) | <0.001 |
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aAF, atrial fibrillation. bVF, ventricular fibrillation. cAVB, atrioventricular block. dPCI, underwent percutaneous coronary intervention during hospitalization. eCABG, underwent coronary artery bypass grafting during hospitalization.
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