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Table 2 Additional quality assessments from the Cochrane Handbook scoring

From: An assessment of the quality of current clinical meta-analyses

Quality assessment

Number of meta-analyses reporting item (%)

Date of search provided

88 (88)

Number of databases searched ≥3

78 (78)

Breakdown of number of databases searched:

 ➢ Not reported

2 (2)

 ➢ 1

6 (6)

 ➢ 2

14 (14)

 ➢ 3

42 (42)

 ➢ 4

12 (12)

 ➢ 5

10 (10)

 ➢ 6

5 (5)

 ➢ 7

4 (4)

 ➢ 8

3 (3)

 ➢ 9

1 (1)

 ➢ 14

1 (1)

Included searches for all databasesa

37 (37)

Included platform for each databaseb

23 (23)

Claimed a reporting tool

72 (72)

Is the reporting tool appropriatec

71 (71)

  1. aNot applicable for 1 meta-analysis
  2. bNot applicable for 2 meta-analyses
  3. cNot applicable for 28 meta-analyses