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Table 1: Data extracted from studies meeting primary inclusion criteria
Section/Subsection Category Weighting (Low/High)
Design, baseline data 
    No patients, aneurysms in study L
    Clinical status (WFNS) L
    Age/sex demography L
    Aneurysm location L
    Study inclusion/exclusion criteria H
    Consent/ethics described H
    Rupture/unruptured L
    Size composition of aneurysms L
Procedural data 
    Coils assessed L
    Exclusive coiling with coated coil L
    Packing density L
    Assist-device usage H
    Detail of procedural complications H
    Procedural angio result H
Outcome data 
    Independent angio assessment H
    Independent clinical assessment H
    Proportion with angio follow-up H
    Duration of angio follow-up L
    Detail on clinical tool, results L
    Angio results H
    Rebleed rate L
    Aneurysm retreatment rate H
Note:—H indicates high; L, lower weighting; WFNS, World Federation of Neurosurgeons.