Search filter to identify reports of randomised controlled trials in CINAHL

Session: 

Oral session: Searching and information retrieval (1)

Date: 

Sunday 16 September 2018 - 11:40 to 11:50

Location: 

Carrick 1

All authors in correct order:

Glanville J1, Dooley G2, Wisniewski S3, Foxlee R3, Noel-Storr A4
1 York Health Economics Consortium, United Kingdom
2 Metaxis, United Kingdom
3 Cochrane Editorial Unit, United Kingdom
4 Cochrane Dementia and Cognitive Improvement Group, United Kingdom
Presenting author and contact person

Presenting author:

Julie Glanville

Contact person:

Julie Glanville
Abstract text
Background:
The Cochrane CENTRAL database seeks to gather together reports of randomised controlled trials, to inform Cochrane Reviews. The Cochrane Editorial and Methods Department is developing methods to identify reviews from a range of databases to include in CENTRAL. Published search filters to identify reports of randomised controlled trials (RCTs) on CINAHL Plus are not recent. Reports of RCTs in CINAHL may not be being identified efficiently and therefore searchers may be missing studies.

Objectives:
We undertook this project to develop, test and validate a search filter to identify reports of RCTs, quasi-RCTs and controlled clinical trials from CINAHL Plus.

Methods:
We identified 11 sets of relevant and irrelevant records. We used nine sets to develop and test search filters iteratively. We used two sets to validate the filter performance in terms of sensitivity and precision. We also evaluated the performance of two previously published filters and the filter built into EBSCOhost. 

Results:
Following a sequence of iterative development we have developed a filter that offers sensitivity of 0.88 (95% confidence interval (CI) 0.77 to 0.95) and precision of 0.36 (95% CI 0.31 to 0.41). This is comparable to the sensitivity of the published filters, but represents a great improvement in terms of precision. 

Conclusions:
A sensitive and precise filter is available for use in identifying reports of RCTs, controlled clinical trials and quasi-RCTs from the CINAHL Plus database via EBSCOHost. The precision of the filter is such that it is likely to cut the number of results that need to be scanned by researchers to a third of those retrieved by a subject search alone. 

Patient or healthcare consumer involvement:
This research did not include patients or consumers.

Relevance to patients and consumers: 

Identifying RCTs to consider for Cochrane reviews will help to ensure that Cochrane reviews used to inform patient care and patients' decision making include as much relevant evidence and are as current as possible. We had no patient or consumer partners for this search filter design project which was designed to identify reports of RCTs in the CINAHL database.