Table 3 Predictors of one or more red blood cell transfusions during admission for subarachnoid hemorrhage, clustered by center

Age (increase by 10 years)

1.07

0.90–1.28

0.458

Age (increase by 10 years)

1.06

0.78–1.45

0.711

Sex (male vs other)

0.45

0.19–1.10

0.080

Sex (male vs other)

0.84

0.45–1.57

0.593

Hx of oral AC use

1.93

1.01–3.68

0.046

Hx of Oral AC use

1.00

0.60–1.67

0.993

Admission Hb (increase by 10 g/L)

0.40

0.39–0.41

< 0.0001

Admission Hb (increase by 10 g/L)

0.81

0.69–0.96

0.013

Modified Fisher grade 3–4 vs 0–2^a

1.02

0.90–1.15

0.765

Modified Fisher Grade 3–4 vs 0–2^a

1.02

0.77–1.36

0.876

Anterior circulation (vs posterior)

1.46

1.17–1.83

0.001

Anterior circulation (vs Posterior)

1.18

0.90–1.55

0.231

Clip (vs other)

4.39

3.25–5.92

< 0.0001

Clip (vs other)

2.44

1.21–4.94

0.013

Anemia (Hb ≤100 g/L)

28.17

11.06–71.75

< 0.0001

Anemia (Hb ≤100 g/L)

17.38

5.11–59.13

< 0.0001

Vasospasm (pre-RBCTx)

1.62

0.91–2.88

0.100

Vasospasm (pre-RBCTx)

1.11

0.40–3.09

0.845

Cerebral infarct (pre-RBCTx)

1.08

0.96–1.23

0.206