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Table 1 Compliance with PRISMA checklist items (Table adapted from the PRISMA checklist, Moher et al.) [15]

From: Compliance of systematic reviews in ophthalmology with the PRISMA statement

Section/Topic

No.

Brief description of the item

Compliance

TITLE

Title

1

Identification of the report

62 (54%)

ABSTRACT

Structured summary

2

Provide a structured summary

103 (90%)

INTRODUCTION

Rationale

3

Background rationale

115 (100%)

Objectives

4

Description of PICOS (Participants, Interventions, Comparisons, and Study design)

30 (26%)

METHODS

Protocol and registration

5

Indication of review protocol & registration information

10 (9%)

Eligibility criteria

6

Specification of study and review characteristics used as eligibility criteria

91 (79%)

Information sources

7

Describe all information sources and date last searched.

97 (84%)

Search

8

Present repeatable full electronic search strategy for at least one database

55 (48%)

Study selection

9

State the process for selecting studies

86 (75%)

Data collection process

10

Describe the method of data extraction

78 (68%)

Data items

11

Report all variables and any assumptions and simplifications made.

77 (67%)

Risk of bias in individual studies

12

Describe the methods used to assess the risk of bias of individual studies

46 (40%)

Summary measures

13

State the principal summary measures

71 (62%)

Synthesis of results

14

Describe the methods used to handle and analyse the data

53 (46%)

Risk of bias across studies

15

Specify any assessment of risk of bias that may affect the cumulative evidence

27 (24%)

Additional analyses

16

Describe methods of additional analyses

38 (33%)

RESULTS

Study selection

17

Give numbers of studies at each stage of the study.

73 (64%)

Study characteristics

18

For each study, present characteristics for which data were extracted

96 (84%)

Risk of bias within studies

19

Present data on risk of bias for each study

42 (37%)

Results of individual studies

20

Report the summary of each data intervention group and estimates of confidence intervals

65 (57%)

Synthesis of results

21

Present the results of each meta-analysis

61 (53%)

Risk of bias across studies

22

Present the results of any assessment of risk of bias across studies

35 (30%)

Additional analysis

23

Give the results of additional analyses

33 (29%)

DISCUSSION

Summary of evidence

24

Summarize the main findings, including the strength of the evidence

98 (85%)

Limitations

25

Discuss limitations at the study, outcome & review levels

80 (70%)

Conclusions

26

Provide a general interpretation of the results

110 (96%)

FUNDING

Funding

27

Describe sources of funding & other support

85 (74%)

OVERALL ADHERENCE: 15 (56%)