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Table 2 Quality assessment of eligible studies with the Newcastle–Ottawa Scale

From: Risk factors of immune checkpoint inhibitor-associated acute kidney injury: evidence from clinical studies and FDA pharmacovigilance database

Study

Selection

Comparability

Outcome

Scores

1

2

3

4

5

6

7

8

Meraz-Muñoz A 2020 [10]

✔

✔

✔

 

✔✔

✔

✔

✔

8

Abdelrahim 2021 [3]

  

✔

✔

✔✔

✔

✔

✔

7

Seethapathy 2019 [5]

✔

✔

✔

 

✔✔

✔

✔

✔

8

Cortazar 2020 [9]

✔

 

✔

 

✔✔

✔

✔

✔

7

Koks 2021 [4]

✔

✔

✔

 

✔✔

✔

✔

✔

8

Shimamura 2021[13]

✔

✔

✔

 

✔✔

✔

✔

✔

8

Stein 2020 [11]

  

✔

 

✔✔

✔

✔

✔

6

Seethapathy 2020 [12]

  

✔

 

✔

✔

✔

✔

5

Gupta 2021 [14]

✔

✔

✔

 

✔✔

✔

✔

✔

8

  1. 1 Representativeness of the exposed cohort
  2. 2 Selection of the non-exposed cohort
  3. 3 Ascertainment of exposure
  4. 4 Demonstration that outcome of interest was not present at start of study
  5. 5 Comparability of cohorts on the basis of the design or analysis
  6. 6 Assessment of outcome
  7. 7 Was follow-up long enough for outcomes to occur
  8. 8 Adequacy of follow up of cohorts