Table 5 Factor associated unfavorable outcome (mRS 3-6) at postoperative 6 months in patients with ruptured anterior communicating artery aneurysm by binary logistic regression analysis (n = 141)

Female

1.49 (0.68–3.25)

0.320

Age ≥ 60

4.17 (1.78–9.77)

0.001

Hypertension

3.35 (1.49–7.55)

0.004

Presenting symptom

 Headache

0.67 (0.30–1.54)

0.360

 Vomiting

1.31 (0.60–2.88)

0.500

 Alteration of consciousness

4.15 (1.66–10.38)

0.002

 Seizure

0.54 (0.17–1.70)

0.290

 Hemiparesis

2.58 (0.76–8.74)

0.130

 Deterioration prior surgery

2.56 (0.95–6.94)

0.065

HH grades 3–5

2.38 (1.06–5.35)

0.036

WFNS grades 3–5

2.45 (1.08–5.57)

0.033

Aneurysm characteristics

 Neck width ≥ 4 mm

0.48 (0.15–1.51)

0.210

 DN ratio ≥ 2

0.43 (0.20–0.96)

0.039

 A1 hypoplasia

7.00 (2.51–19.50)

< 0.001

8.90 (2.82–28.04)

< 0.001

 Multiple aneurysm

3.04 (0.86–10.68)

0.084

Pre ICH

1.03 (0.44–2.42)

0.940

Pre HCP

2.97 (0.53–16.49)

0.220

Pre IVH

15.71 (4.51–54.75)

< 0.001

19.66 (5.10–75.80)

< 0.001

Delayed surgery

1.14 (0.50–2.61)

0.760

Multiple clips (≥ 2)

1.71 (0.75–3.90)

0.201

Intraoperative rupture

0.96 (0.32–2.84)

0.940

Operative time ≥ 5 h

1.06 (0.41–2.74)

0.900

Estimated blood loss ≥ 600 mL

1.39 (0.61–3.13)

0.430

Complications

 Intracerebral hemorrhage

10.30 (1.03–102.67)

0.047

 Neurological worse

2.28 (0.99–5.23)

0.053

 Symptomatic vasospasm

2.34 (0.97–5.63)

0.057

 Cerebral infarction

2.96 (1.33–6.62)

0.008

3.21 (1.16–8.88)

0.025

 Infectious complications

5.28 (2.28–12.23)

< 0.001