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Table 4 NOS score

From: Kidney transplant outcomes in HIV-positive patients: a systematic review and meta-analysis

Author (refs.)

Representativeness of the exposed cohort

Selection of the non-exposed cohort

Ascertainment of exposure

Outcome of interest not present at start

Comparability: age and sex

Comparability: other factors

Assessment of outcome

Follow-up long enough

Adequacy of follow-up

Total NOS score

Study quality

Roland [48]

1

0

1

1

0

0

1

1

1

6

Fair

Touzot [31]

1

0

1

1

0

0

1

1

1

6

Fair

Mazuecos [49]

1

0

1

1

0

0

1

1

1

6

Fair

Stock [50]

1

0

1

1

0

0

1

1

1

6

Fair

Stock [4]

1

0

1

1

0

0

1

1

1

6

Fair

Kumar [51]

1

0

1

1

0

0

1

1

1

6

Fair

Qiu [52]

1

1

1

1

0

0

1

1

1

7

Fair

Tan [53]

1

0

1

1

0

0

1

1

1

6

Fair

Carter [54]

1

0

1

1

0

0

1

1

1

6

Fair

Gruber [55]

1

0

1

1

0

0

1

1

1

6

Fair

Gómez [56]

1

0

1

1

0

0

1

1

1

6

Fair

Izzo [17]

1

0

1

1

0

0

1

1

1

6

Fair

Roland [57]

1

0

1

1

0

0

1

1

1

6

Fair

Gasser [58]

1

0

1

1

0

0

1

1

1

6

Fair

Gathogo [10]

1

1

1

1

0

1

1

1

1

8

Good

Baisi [59]

1

0

1

1

0

0

1

1

1

6

Fair

Xia [20]

1

1

1

1

1

1

1

1

1

9

Good

Locke [11]

1

0

1

1

1

1

1

1

1

8

Good

Abbott [2]

1

1

1

1

0

0

1

1

1

7

Fair

Cristelli Brazil [60]

1

0

1

1

0

0

1

1

1

6

Fair

Cristelli Spain [60]

1

0

1

1

0

0

1

1

1

6

Fair

Mazuecos [61]

1

1

1

1

0

1

1

1

1

8

Good

Rosa [40]

1

0

1

1

0

1

1

1

1

7

Fair

Vicari [30]

1

1

1

1

0

0

1

1

1

7

Fair

Bossini [27]

1

0

1

1

0

0

1

1

1

6

Fair

Mazuecos [9]

1

1

1

1

0

1

1

1

1

8

Good

Gathogo [34]

1

0

1

1

0

1

1

1

1

7

Fair

Malat [62]

1

0

1

1

0

1

1

1

1

7

Fair

Sum

29

8

29

29

3

9

29

29

29

  

 Sum 

0

21

0

0

26

20

0

0

0

  

Percent

100

28

100

100

10

31

100

100

100

  
  1. Standardized assessment of study quality based on the Newcastle–Ottawa-Scale for cohort studies. Each of the 29 studies was assessed for the category’s selection (4 items), comparability (2 items), and outcome (3 items). Fulfilled and unfulfilled criteria are presented by of the solid rhomboid () and open circle (), respectively. Study quality was graded as good (≥ 8 points), fair (6 or 7 points), and poor (≤ 5 points)