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Table 2 Newcastle–Ottawa Scale (NOS) risk of bias assessment of the included studies

From: Blood levels of brain-derived neurotrophic factor (BDNF) in systemic lupus erythematous (SLE): a systematic review and meta-analysis

References

Selection

(0–5)

Comparability (0–2)

Exposure/outcome (0–3)

Total score (0–10)

Ikenouchi-Sugita et al. [26]

3

1

3

7

Fauchais et al. [27]

4

1

3

8

Tamashiro et al. [28]

4

2

3

9

Zheng et al. [30]

3

1

3

7

Kalinowska-Łyszczarz et al. [29]

4

1

3

8

Noris-GarCia et al. [32]

4

1

2

7

Tian et al. [33]

4

2

3

9

Alessi et al. [31]

3

2

3

8

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Advances in Rheumatology

ISSN: 2523-3106