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Table 2 Quality assessment of cohort studies according to the Newcastle Ottawa Scale (NOS)

From: Is laminoplasty or laminectomy the best strategy for C3 segment in French-door laminoplasty? A systematic review and meta-analysis

Study

Selection

Compaaability

Exposure

Total Score

Kudo et al. [6]

3

2

3

8

Takeuchi et al. [8]

3

2

3

8

Long et al. [9]

3

2

2

7

Wang et al. [10]

3

2

3

8

Ding et al. [11]

3

2

2

7

Wang et al. [12]

3

2

3

8

Takeuchi et al. [13]

3

2

3

8

Nakajima et al. [14]

3

2

3

8