Table 3. Univariable analysis of predictors of hematoma expansion.
| Predictor | Odds ratio | 95% Confidence interval | P value |
|---|---|---|---|
| Age >80 | 0.43 | 0.07–2.68 | 0.65 |
| Female sex | 0.84 | 0.092–8.32 | >0.99 |
| Hypertension | 1.8 | 0.26–12.5 | 0.62 |
| Diabetes mellitus | 0.3 | 0.05–1.94 | 0.36 |
| Antiplatelet therapy | 4.9 | 0.46–54.5 | 0.32 |
| Tranexamic acid | 2.1 | 0.32–12.5 | 0.65 |
| GCS score at admission <12 | 3.1 | 0.422–21.3 | 0.37 |
| Delayed admission† | 1.19 | 0.19–7.46 | >0.99 |
| Higher PT-INR (>2.0) at admission | 0.84 | 0.134–5.26 | >0.99 |
| Reaching target-PT-INR after a half day | 0.17 | 0.0225–1.23 | 0.17 |
| Reversal using PCC | 0.03 | 0.00–0.41 | 0.004* |
†Time from injury to admission was >4 hours. *Shows a statistical significance. GCS: Glasgow Coma Scale, PCC: prothrombin complex concentrate, PT-INR: prothrombin time-international normalized ratio.