Comparison of Different Frames of Numerical Information in Cochrane Plain Language Summaries

NCT ID: NCT03554252

Last Updated: 2018-09-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

225 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-04-01

Study Completion Date

2018-08-01

Brief Summary

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Participants will be randomly given one of two formats containing descriptions of health interventions. In one format, participants will have to read short summaries where results of the intervention are presented as frequencies and the side effects of health intervention are presented as percentages, while in another format the frames will be reversed (results will be presented as percentages and side effects as frequencies). After reading, participants will be asked several questions about the content of the summary and its conclusions.

Detailed Description

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Conditions

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Health Knowledge, Attitudes, Practice

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Frequencies

Group Type EXPERIMENTAL

Frequencies

Intervention Type OTHER

Results are presented as natural frequencies (e.g. the drug was effective for 1 out of 10 people) while side effects are presented as percentages (e.g. 40% participants experienced severe side effects)

Percentages

Group Type EXPERIMENTAL

Percentages

Intervention Type OTHER

Results are presented as percentages (e.g. the drug was effective for 10% of people) while side effects are presented as natural frequencies (e.g. 4 out of 10 participants experienced severe side effects)

Interventions

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Frequencies

Results are presented as natural frequencies (e.g. the drug was effective for 1 out of 10 people) while side effects are presented as percentages (e.g. 40% participants experienced severe side effects)

Intervention Type OTHER

Percentages

Results are presented as percentages (e.g. the drug was effective for 10% of people) while side effects are presented as natural frequencies (e.g. 4 out of 10 participants experienced severe side effects)

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients who are visiting their family doctor, and are at least 18 old. Students of biomedical studies at University of Split School of Medicine, who are at least 18 years old.

Exclusion Criteria

* Participants younger than 18 years.
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Split, School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ivan Buljan, MPsy

Role: PRINCIPAL_INVESTIGATOR

PhD student

Locations

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University of Split School of Medicine

Split, , Croatia

Site Status

Countries

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Croatia

References

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Schapira MM, Walker CM, Cappaert KJ, Ganschow PS, Fletcher KE, McGinley EL, Del Pozo S, Schauer C, Tarima S, Jacobs EA. The numeracy understanding in medicine instrument: a measure of health numeracy developed using item response theory. Med Decis Making. 2012 Nov-Dec;32(6):851-65. doi: 10.1177/0272989X12447239. Epub 2012 May 25.

Reference Type BACKGROUND
PMID: 22635285 (View on PubMed)

Buljan I, Tokalic R, Roguljic M, Zakarija-Grkovic I, Vrdoljak D, Milic P, Puljak L, Marusic A. Framing the numerical findings of Cochrane plain language summaries: two randomized controlled trials. BMC Med Res Methodol. 2020 May 6;20(1):101. doi: 10.1186/s12874-020-00990-4.

Reference Type DERIVED
PMID: 32375659 (View on PubMed)

Other Identifiers

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214-09-7672

Identifier Type: -

Identifier Source: org_study_id

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