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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%)