TABLE 4.

Multivariate Cox regression analysis for severe PHI events^*

Severe PHI Event	HR	95% CI	p Value
10 vs 7 g/dl hemoglobin transfusion   threshold	2.316	1.126–4.765	0.02
Initial ICP	1.044	1.024–1.064	<0.001
Midline shift <5 vs ≥5 mm	3.662	1.471–9.118	0.01
CT category diffuse (1 or 2) vs mass   lesion	0.186	0.040–0.872	0.03
CT category diffuse (3 or 4) vs mass   lesion	0.302	0.079–1.163	0.08
Surgery vs no surgery	3.171	0.894–11.240	0.07

^*Boldface type indicates statistical significance.