Table 1 Characteristics of the study sample.
Variables | Study sample (n = 48,070) | Training (n = 43,460) | Validation (n = 4610) | Testing (n = 380) |
|---|---|---|---|---|
Age | 54 (IQR, 43–65) | 54 (IQR, 43–65) | 53 (IQR, 40–60) | 48 (IQR, 36–57) |
Gender (Male) | 28,253 (58.77%) | 25,079 (57.70%) | 3174 (68.85%) | |
ICH-positive patients | 13,224 (27.50%) | 9226 (21.22%) | 612 (13.27%) | 130 (34.21%) |
CT examinations | 55,179 | 49,968 | 5211 | 452 |
ICH (binary) | 15,733 (28.51%) | 14,742 (29.50%) | 991 (19.01%) | 167 (36.9%) |
IPH | 10,080 (18.26%) | 9422 (18.85%) | 658 (12.62%) | 86 (19.02%) |
IVH | 5963 (10.78%) | 5535 (11.07%) | 418 (8.02%) | 38 (8.4%) |
SAH | 9555 (17.31%) | 8955 (17.92%) | 600 (11.51%) | 48 (10.61%) |
SDH | 7473 (13.54%) | 7022 (14.05%) | 451 (8.65%) | 76 (16.81%) |
EDH | 1237 (2.24%) | 1116 (2.33%) | 71 (1.35%) | 14 (3.1%) |
Total CT slices | 2,255,271 | 2,255,271 | 212,873 | – |
ICH-positive | 188,067 (8.33%) | 175,664 (7.78%) | 12,403 (5.82%) | – |
ICH-negative | 2,067,204 (91.67%) | 2,079,607 (92.22%) | 200.470 (6.18%) | – |
