Table 2 Predictors of anemia (Hb ≤ 100 g/L) during admission for subarachnoid hemorrhage, clustered by center

Age (increase by 10 yr)

1.02

0.97–1.08

0.472

Age (increase by 10 years)

0.99

0.91–1.09

0.913

Sex (female vs other)

2.82

1.76–4.50

< 0.0001

Sex (female vs other)

1.91

1.08–3.40

0.027

Hx of oral AC use

6.17

2.79–14.97

< 0.0001

Hx of oral AC use

5.98

2.11–16.95

0.001

Admission hemoglobin (increase by 10 g/L)

0.35

0.32–0.39

< 0.0001

Admission hemoglobin (increase by 10 g/L)

0.55

0.43–0.71

< 0.0001

Modified Fisher grade 3–4 vs 0–2^a

1.42

0.98–2.08

0.067

Modified Fisher grade 3–4 vs 0–2^a

1.96

1.07–3.57

0.028

Anterior circulation (vs posterior)

0.98

0.65–1.48

0.929

Anterior circulation (vs posterior)

0.58

0.30–1.13

0.107

Aneurysm size (increase by 1 mm)

1.03

1.02–1.05

< 0.0001

Aneurysm size (increase by 1 mm)

1.03

0.98–1.07

0.226

Clip (vs other)

3.19

2.09–4.85

< 0.0001

Clip (vs other)

4.62

2.46–8.69

< 0.0001

Vasospasm (preanemia)

0.78

0.52–1.17

0.223

Vasospasm (preanemia)

1.49

0.79–2.80

0.214