Table 2.
Patients’ characteristics stratified by tube current
| LmA (n = 288) | HmA (n = 421) | p value | |
|---|---|---|---|
| Age, median (IQR), y | 74 (62 – 82) | 73 (62 – 82) | 0.904 |
| Sex, male, n (%) | 163 (56.6) | 233 (55.3) | 0.741 |
| History of hypertension, n (%) | 219 (76.0) | 334 (79.3) | 0.299 |
| Antiplatelet treatment, n (%) | 123 (42.7) | 191 (45.4) | 0.484 |
| Anticoagulant treatment, n (%) | 49 (17.0) | 83 (19.7) | 0.364 |
| Admission INR, median (IQR) | 1.03 (1.00 – 1.20) | 1.10 (1.00-1.20) | 0.331 |
| ICH Location | 0.227 | ||
| Lobar | 130 (45.1) | 216 (51.3) | |
| Deep | 128 (44.4) | 171 (40.6) | |
| Infratentorial | 30 (10.4) | 34 (8.1) | |
| IVH presence, n (%) | 138 (47.9) | 174 (41.3) | 0.083 |
| Baseline ICH volume, median (IQR), mL | 18 (6 – 46) | 15 (6 – 36) | 0.018 |
| Baseline IVH volume, median (IQR), mL | 0 (0 – 7) | 0 (0 – 3) | 0.074 |
| Time from symptom onset to CTA, median (IQR), h | 5 (3 – 10) | 5 (3 – 10) | 0.342 |
| CTA spot sign presence, n (%) | 60 (20.8) | 62 (14.7) | 0.034 |
| ICH expansion, n (%) | 53 (18.4) | 68 (16.2) | 0.434 |
| CTDI-vol, mean ± SD, mGy | 43.3 ± 8.9 | 71.4 ± 9.8 | <0.001 |
| DLP, mean ± SD, mGy - cm | 1258.3 ± 618.3 | 2342.1 ± 864.7 | <0.001 |
ICH, Intracerebral hemorrhage; IQR, interquartile range; IVH, Intraventricular hemorrhage; CTA, computed tomography angiography. CTDI-vol, Volumetric Computed Tomography Dose Index; DLP, Dose-Length Product DLP.