Table 2.
Patients baseline characteristics in model training cohort.
| Characteristics | Total (n = 303) | Non-DCI (n = 218) | DCI (n = 85) | P-value |
|---|---|---|---|---|
| Demographics | ||||
| Age (years) | 57 (51, 64) | 57 (52, 65) | 56 (49, 64) | 0.414 |
| Gender (Female) | 179 (59) | 126 (58) | 53 (62) | 0.552 |
| Medical history | ||||
| Hypertension | 142 (47) | 103 (47) | 39 (46) | 0.932 |
| Diabetes | 9 (3) | 6 (3) | 3 (4) | 0.714 |
| CHD | 12 (4) | 5 (2) | 7 (8) | 0.042 |
| Smoking | 54 (18) | 35 (16) | 19 (22) | 0.263 |
| Drinking | 37 (12) | 26 (12) | 11 (13) | 0.962 |
| Anticoagulant | 11 (4) | 6 (3) | 5 (6) | 0.19 |
| Disease history | 0.367 | |||
| ICH | 3 (1) | 2 (1) | 1 (1) | |
| CI | 6 (2) | 3 (1) | 3 (4) | |
| WFNS grade | <0.001 | |||
| I–II | 227 (75) | 185 (85) | 42 (49) | |
| III | 37 (12) | 22 (10) | 15 (18) | |
| IV | 22 (7) | 7 (3) | 15 (18) | |
| V | 17 (6) | 4 (2) | 13 (15) | |
| Hunt and Hess grade | <0.001 | |||
| I–II | 211 (70) | 167 (77) | 44 (52) | |
| III | 59 (19) | 42 (19) | 17 (20) | |
| IV | 18 (6) | 5 (2) | 13 (15) | |
| V | 15 (5) | 4 (2) | 11 (13) | |
| Modified Fisher scale | <0.001 | |||
| 1–2 | 157 (52) | 126 (57) | 31 (36) | |
| 3 | 76 (25) | 56 (26) | 20 (24) | |
| 4 | 70 (23) | 36 (17) | 34 (40) | |
| Aneurysm location | 0.695 | |||
| ACA | 273 (90) | 195 (89) | 78 (92) | |
| PCA | 30 (10) | 23 (11) | 7 (8) | |
| Aneurysm number | 1.000 | |||
| Single | 269 (89) | 194 (89) | 75 (88) | |
| Multiple (≥2) | 34 (11) | 24 (11) | 10 (12) | |
| Mean aneurysm size | ||||
| Neck (mm) | 3.2 (2.4, 3.75) | 3.2 (2.5, 3.98) | 3.2 (2.2, 3.7) | 0.228 |
| Length (mm) | 4.4 (3.15, 5.5) | 4.4 (3.26, 5.5) | 4.2 (3, 6) | 0.963 |
| Aneurysm treatment | 0.002 | |||
| Clipping | 154 (51) | 98 (45) | 56 (66) | |
| Coiling | 149 (49) | 120 (55) | 29 (34) | |
| Decompressive craniectomy | 16 (5) | 3 (1) | 13 (15) | <0.001 |
| Admission laboratory results | ||||
| Glucose (mmol/L) | 6.96 (5.94, 8.17) | 6.94 (5.92, 8.14) | 6.96 (6.1, 8.3) | 0.454 |
| D-dimer (mg/L) | 1.17 (0.58, 2.5) | 1.11 (0.55, 2.33) | 1.51 (0.78, 3.82) | 0.024 |
| WBC (10∧9/L) | 11.23 (9.27, 13.99) | 10.5 (8.75, 12.65) | 14.6 (11.7, 17.3) | <0.001 |
| Neutrophil (10∧9/L) | 9.57 (7.56, 12.28) | 8.89 (7.27, 11.16) | 12.1 (9.67, 14.7) | <0.001 |
| Lymphocyte (10∧9/L) | 0.9 (0.68, 1.25) | 0.94 (0.68, 1.26) | 0.83 (0.68, 1.09) | 0.266 |
| Monocytes (10∧9/L) | 0.5 (0.34, 0.7) | 0.44 (0.32, 0.66) | 0.65 (0.44, 0.9) | <0.001 |
| Admission CT value (HU) | ||||
| ClotCT | 57.1 ± 7.05 | 55.23 ± 6.33 | 61.9 ± 6.54 | <0.001 |
| EdemaCT | 26.82 (24.2, 28.98) | 26.75 (24.25, 28.45) | 27 (24.2, 30) | 0.28 |
ACA, aneurysm includes anterior cerebral artery, middle cerebral artery, internal cerebral artery, anterior communicating artery; posterior communicating artery; PCA, aneurysm includes posterior cerebral artery, basilar artery, anterior inferior cerebellar artery, posterior inferior cerebellar artery, vertebral artery; ACA, anterior circulation aneurysm; PCA, posterior circulation aneurysm; WBC, White blood cell; CT, computer tomography; HU, Hounsfield Unit; WFNS, World Federation of Neurosurgical Surgeons; ICH, Intracerebral hemorrhage; CI, cerebral infarction; CHD, Coronary heart disease.