Anemia prevalence and incidence and red blood cell transfusion practices in aneurysmal subarachnoid hemorrhage: results of a multicenter cohort study

Table 4 Predictors (multivariable model) of red blood cell transfusion, stratified by nadir hemoglobin

Variable	Hb < 80 g/L (n = 83; 61 RBCTx events)			80 ≤ Hb < 100 g/L (n = 168; 32 RBCTx events)
Variable	OR	95% CI	p Value	OR	95% CI	p Value
Age (increase by 10 years)	1.03	0.82–1.29	0.801	1.18	1.10–1.26	< 0.0001
Male sex (vs other)	0.48	0.13–1.87	0.293	1.42	1.03–1.96	0.031
Fisher grade 3–4 (vs 0–2)	1.29	0.76–2.18	0.347	0.64	0.29–1.42	0.268
Anterior circulation (vs posterior)	1.77	0.65–4.79	0.262	0.85	0.60–1.22	0.385
Clip (vs other)	1.00	0.16–6.18	1.000	4.60	1.89–11.17	0.001
Vasospasm (pre-RBCTx)	0.81	0.23–2.91	0.751	1.57	0.68–3.62	0.294