Skip to main content

Table 3 NOS quality assessment of final article pool

From: Clipping versus coiling in posterior circulation intracranial aneurysms: a meta-analysis

Study

Selection

Outcome not present at the start of the study

Comparability based on the design or analysis

Outcome

Adequacy of follow-up

Score

Representativeness

Selection

Ascertainment of exposure

Assessment of outcome

Follow-up long enough

Seifert et al.

8

Lusseveld et al.

8

Uhl et al.

8

Sheah et al.

8

Sandalcioglu et al.

8

Molyneux et al.

8

Kocaeli et al.

8

Sung et al.

9

Jin et al.

9

Kaku et al.

7

Nourbakhsh et al.

8

Zhou et al.

7

Tokimura et al.

7

Hong et al.

8

Spetzler et al.

9

Sharma M et al.

9

Bacigaluppi et al.

9

Sharma S et al.

9

Jang eta al.

8

Sejkorova et al.

9

  1. NOS scale awards each item with one point (•). Comparability is awarded with a maximum of two points (••). In case an article doesn’t meet a criterion, it gains no points (-). A total score less than 5 for an article means high risk of bias