Skip to content

Communicating uncertainty from limitations in quality of evidence to the public in written health information

Communicating uncertainty from limitations in quality of evidence to the public in written health information

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00015911
Enrollment
1500
Registered
2019-01-22
Start date
2018-05-16
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

perception of different types of qualitative uncertainty in health information

Interventions

Group 1: A: Health information with high quality of evidence/no uncertainty ("proven" effect) Group 2: B: Health information with reduced certainty in evidence ("indication of effect") Group 3: B1: He

Sponsors

Institut für Qualität und Wirtschaftlichkeit im Gesundheitswesen (IQWiG)
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Minimal age 18 years

Exclusion criteria

Exclusion criteria: Lack of sufficient German to read texts and answer questionnaire

Design outcomes

Primary

MeasureTime frame
Perception of treatment effectiveness measured with one item on an ordinal scale (“How do you judge the effectiveness of Oroxil ?”) with five possible answers: (1) It is proven that Oroxil can help. (2) Oroxil may possibly help. (3) It is unclear, whether Oroxil helps. (4) Oroxil may not help. (5) Oroxil definitely does not help.

Secondary

MeasureTime frame
1. Subjective certainty in the judgement of treatment effectiveness (regarding the primary endpoint) 2. Perception of the body of evidence 3. Text quality 4. Hypothetical treatment decision

Countries

Germany

Contacts

Public ContactRoland Büchter

Institut für Qualität und Wirtschaftlichkeit im Gesundheitswesen (IQWiG)

roland.buechter@iqwig.de+4922135685413

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 3, 2026