Table 3 Logistic regression analysis for postoperative ischemic events

Mean age at op (yrs)

10.8 ± 4.0

9.5 ± 3.7

1.129 (1.011–1.260)

Sex, female/male ratio

17/14

255/247

1.174 (0.550–2.504)

Ischemic presentation

19 (61.3)

347 (69.1)

Admission mRS score

 Mean

1.4 ± 0.6

1.4 ± 0.6

 0–1

20 (64.5)

351 (30.1)

 2–5

11 (35.5)

151 (69.9)

Past medical history

 Family history

2 (6.5)

36 (7.2)

 Hypertension

1 (3.2)

6 (1.2)

 Thyroid disease

1 (3.2)

3 (0.6)

 Hyperlipidemia

0 (0.0)

3 (0.6)

 Smoking & Alcohol use

0 (0.0)

2 (0.4)

 Diabetes

0 (0.0)

1 (0.2)

Suzuki stage^a

 Mean

3.0 ± 0.9

2.9 ± 0.9

1.061 (0.677–1.662)

 1

0 (0.0)

12 (2.6)

 2

10 (33.3)

144 (31.0)

 3

11 (36.7)

205 (44.1)

 4

8 (26.7)

88 (18.9)

 5

1 (3.3)

16 (3.4)

PCA involvement^a

11 (36.7)

105 (22.6)

2.587 (1.030–6.496)

Collateral circulation^a

 Mean

6.6 ± 2.1

7.0 ± 1.8

 Grade I (0–4)

6 (20.0)

48 (10.3)

 Grade II (5–8)

16 (53.3)

326 (70.1)

 Grade III (9–12)

8 (26.7)

91 (19.6)

ECA collateral^a

 STA collateral

0 (0.0)

4 (0.9)

 MMA collateral

11 (36.7)

186 (40.0)

0.533 (0.224–1.267)

 OA collateral

3 (10.0)

26 (5.6)

1.365 (0.343–5.433)

Surgical modalities

 Indirect bypass

26 (83.9)

421 (83.9)

1.435 (0.171–12.013)

 Direct bypass

4 (12.9)

66 (13.1)

0.979 (0.099–9.718)

 Combined bypass

1 (3.2)

15 (3.0)