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Table 5: Odds ratios for different patient and aneurysm characteristics for the occurrence of procedural ruptures leading to disability or death in 681 patients
Variable Odds Ratio 95% Confidence Interval
Men 
Timing after SAH 
    ≤3 d 1.15 0.29–4.64
    Between 4 and 11 d 0 
    ≥11 d 4.34 1.07–17.60
Aneurysm location 
    Posterior circulation 4.67 1.10–19.74
    Anterior cerebral artery 0.21 0.03–1.74
    Middle cerebral artery 1.86 0.22–15.43
    Carotid artery 0.40 0.05–3.28
Supportive balloon 4.44 0.87–22.60
Clinical condition at the time of treatment 
    HH I–II 0.56 0.14–2.25
    HH III 1.79 0.44–7.23
    HH IV–V 1.52 0.30–7.62
Aneurysm size (mm) 
    ≤5 4.92 0.99–24.55
    <10 1.36 0.27–6.80
    ≥10 0 
    >15 0 
Note:—SAH indicates subarachnoid hemorrhage; HH, Hunt and Hess scale.

Variable	Odds Ratio	95% Confidence Interval
Men
Timing after SAH
≤3 d	1.15	0.29–4.64
Between 4 and 11 d	0
≥11 d	4.34	1.07–17.60
Aneurysm location
Posterior circulation	4.67	1.10–19.74
Anterior cerebral artery	0.21	0.03–1.74
Middle cerebral artery	1.86	0.22–15.43
Carotid artery	0.40	0.05–3.28
Supportive balloon	4.44	0.87–22.60
Clinical condition at the time of treatment
HH I–II	0.56	0.14–2.25
HH III	1.79	0.44–7.23
HH IV–V	1.52	0.30–7.62
Aneurysm size (mm)
≤5	4.92	0.99–24.55
<10	1.36	0.27–6.80
≥10	0
>15	0