Authors seldom report the most patient-important outcomes and absolute effect measures in systematic review abstracts.

Abstract:

OBJECTIVES:Explicit reporting of absolute measures is important to ensure treatment effects are correctly interpreted. We examined the extent to which authors report absolute effects for patient-important outcomes in abstracts of systematic review (SR). STUDY DESIGN AND SETTING:We searched OVID MEDLINE and Cochrane Database of Systematic Reviews to identify eligible SRs published in the year 2010. Citations were stratified into Cochrane and non-Cochrane reviews, with repeated random sampling in a 1:1 ratio. Paired reviewers screened articles and recorded abstract characteristics, including reporting of effect measures for the most patient-important outcomes of benefit and harm. RESULTS:We included 96 Cochrane and 94 non-Cochrane reviews. About 117 (77.5%) relative measures were reported in abstracts for outcomes of benefit, whereas only 34 (22.5%) absolute measures were reported. Similarly, for outcomes of harm, 41 (87.2%) relative measures were provided in abstracts, compared with only 6 (12.8%) absolute measures. Eighteen (9.5%) abstracts reported both absolute and relative measures for outcomes of benefit, whereas only two (1.1%) abstracts reported both measures for outcomes of harm. Results were similar between Cochrane and non-Cochrane reviews. CONCLUSION:SR abstracts seldom report measures of absolute effect. Journal editors should insist that authors report both relative and absolute effects for patient-important outcomes.

journal_name

J Clin Epidemiol

authors

Agarwal A,Johnston BC,Vernooij RW,Carrasco-Labra A,Brignardello-Petersen R,Neumann I,Akl EA,Sun X,Briel M,Busse JW,Ebrahim S,Granados CE,Iorio A,Irfan A,Martínez García L,Mustafa RA,Ramirez-Morera A,Selva A,Solà I,S

doi

10.1016/j.jclinepi.2016.08.004

subject

Has Abstract

pub_date

2017-01-01 00:00:00

pages

3-12

eissn

0895-4356

issn

1878-5921

pii

S0895-4356(16)30358-4

journal_volume

81

pub_type

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