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Table 3 Newcastle-Ottawa Score for included studies

From: Longitudinal studies that use data collected as part of usual care risk reporting biased results: a systematic review

ID

Articles

Representativeness of exposed cohort

Selection of non-exposed cohort

Ascertainment of exposure

Demonstration outcome was not present at start of study

Study controls for important factor

Study controls for additional factors

Assessment of outcome

follow-up duration

Adequacy of follow-up

Overall Quality Score

  

Selection

Comparability

Outcome

 

1

Adams et al.

*

*

*

*

*

–

*

*

–

7

2

Astrom et al.

*

*

*

*

*

–

*

*

–

7

3

Bernstein et al.

*

*

*

*

*

*

*

*

–

8

4

Biskupiak et al.

*

*

*

*

*

–

*

*

–

7

5

Bradford et al.

*

*

–

*

–

*

*

–

–

5

6

Cheung et al.

–

*

*

*

–

–

*

*

–

5

7

Coplan et al.

*

*

*

*

–

–

*

–

–

5

8

Dhawale et al.

–

*

*

*

–

–

*

*

*

6

9

Elmelund et al.

*

*

*

*

*

*

*

*

*

9

10

Fattah et al.

*

*

*

*

–

–

*

*

*

7

11

Fatti et al.

–

*

*

*

*

*

*

*

*

8

12

Flack et al.

–

*

*

*

*

–

*

*

–

6

13

Fong et al.

*

*

*

*

*

*

*

*

*

9

14

Gao et al.

*

*

*

*

*

–

*

*

*

8

15

Ghate et al.

*

*

*

*

*

*

*

–

–

7

16

Gofman et al.

*

*

*

*

*

*

*

*

*

9

17

Guelinckx et al.

–

*

*

–

–

–

*

*

–

4

18

Haas et al.

*

*

*

*

–

*

*

*

–

7

19

Heintzelman et al.

*

*

*

*

*

*

–

*

*

8

20

Henes et al.

–

*

–

*

–

–

–

*

–

3

21

Jehi et al.

*

*

–

*

*

*

–

–

–

5

22

Kharbanda et al.

*

*

*

*

*

*

*

*

–

8

23

Lasko et al.

*

*

*

*

*

–

*

*

–

7

24

Maahs et al.

*

*

*

*

*

*

*

*

–

8

25

Mahmud et al.

*

*

*

*

*

*

–

*

–

7

26

Mancevski et al.

*

*

*

*

*

*

*

*

*

9

27

McCoy et al.

*

*

*

*

*

*

*

*

*

9

28

Nannetti et al.

*

*

*

*

–

–

*

*

–

6

29

Pan et al.

*

*

*

*

*

*

*

*

*

9

30

Patterson et al.

*

*

*

*

*

*

*

*

*

9

31

Pirraglia et al.

*

*

*

*

*

*

*

*

–

8

32

Roth et al.

*

*

*

–

*

*

*

*

*

8

33

Ruiz et al.

*

*

*

*

*

*

*

*

–

8

34

Sarafoglou et al.

*

*

*

*

*

*

*

*

*

9

35

Schwartz et al.

*

*

*

*

*

*

*

*

–

8

36

Snijder et al.

*

*

–

*

*

*

*

*

–

7

37

Sy et al.

*

*

*

*

–

–

*

*

–

6

38

Tamayo et al.

*

*

*

*

*

*

*

*

–

8

39

Tanabe et al.

*

*

*

*

*

–

–

*

–

6

40

Ting et al.

–

*

*

–

*

*

*

*

*

7

41

Ullrich et al.

–

*

*

*

*

*

–

*

–

6

42

Walker et al.

*

*

*

–

*

*

–

*

–

6

43

Wong et al.

*

*

*

*

*

*

*

*

–

8

44

Zechmann et al.

*

*

*

*

–

–

*

*

–

6