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Table 1 The Newcastle–Ottawa quality assessment scale to evaluate risk of bias in three domains for cohort study

From: Effectiveness of multiple teaching methods in standardized training of internal medicine residents in China: a network meta-analysis

Studies

Selection

Comparability

Outcome

Total score

Li2020

4

1

1

6

Ma2022

4

2

1

7

Chen2021

4

1

2

7

Li2020

3

1

2

6

Meng2020

3

1

2

6

Sun2022

4

1

1

6

Xu2017

3

1

1

5

Cheng2019

4

1

1

6

Chen2023

4

1

1

6

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BMC Medical Education

ISSN: 1472-6920

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