Dentists' Understanding of Diagnostic Test Results and Treatment Efficacy. (RCDENT2017)
10. februar 2017 opdateret af: Paulo Nadanovsky, Rio de Janeiro State University
The Influence of Different Formats for Presenting Diagnostic Test Results and Treatment Efficacy on Dentists' Understanding and on Their Reported Clinical Management.
There is little evidence on how best to present diagnostic and treatment effect information to dentists and whether this makes any difference to their understanding of the information given and clinical management.
The objective of this study is to assess the influence of different formats for presenting diagnostic test results and treatment efficacy on dentists' understanding and on their reported clinical management.
The hypothesis is that presenting diagnostic test and treatment effectiveness results using natural frequencies influences the threshold for treatment and improves interpretation of tests results compared to conditional probabilities and percentage differences.
A group of dentists recruited from postgraduate courses were randomized to two of four arms, being two arms of a hypothetical realistic diagnostic scenario (a) and two arms of a hypothetical realistic treatment scenario (b): a1) diagnostic test results presented in conditional probabilities; a2) diagnostic test results presented in natural frequencies; b1) treatment efficacy presented in percentages; b2) treatment efficacy presented in natural frequencies.
The main outcome measures were the correct answer as to whether disease was actually present (post-test probability) and the correct answer as the number of patients that would benefit from the treatment (efficacy).
Secondary outcome measures included the decision whether to treat or not treat the hypothetical patient.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
101
Fase
- Ikke anvendelig
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- Graduated dentist undergoing a postgraduate course in a public university in Rio de Janeiro.
Exclusion Criteria:
- None.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Firedobbelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: Diagnostic percentages.
Dentist receives diagnostic test results presented in conditional probabilities.
|
The format in which dentists receive information about diagnostic test results and efficacy of treatment.
|
|
Eksperimentel: Diagnostic frequencies
Dentist receives diagnostic test results presented in natural frequencies.
|
The format in which dentists receive information about diagnostic test results and efficacy of treatment.
|
|
Aktiv komparator: Treatment percentages.
Dentist receives treatment efficacy presented in percentages.
|
The format in which dentists receive information about diagnostic test results and efficacy of treatment.
|
|
Eksperimentel: Treatment frequencies.
Dentist receives treatment efficacy presented in natural frequencies.
|
The format in which dentists receive information about diagnostic test results and efficacy of treatment.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
The probability that a patient will have a dental cavity as assessed by a dentist.
Tidsramme: Up to 20 minutes
|
The assessement by the dentist was based on a questionnarie containing a clinical hypothetical situation and the result of a bite-wing radiographic exam.
|
Up to 20 minutes
|
|
The number of patients that will benefit from systemic antibiotics adjunct to periodontal treatment as assessed by a dentist.
Tidsramme: Up to 20 minutes
|
The assessement by the dentist was based on a questionnarie containing a clinical hypothetical situation and the information about the usual efficacy of systemic antibiotics adjunct to periodontal treatment.
|
Up to 20 minutes
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
The number of dentists that would recommend the use of systemic antibiotics adjunct to periodontal treatment in the clinical management of a patient with periodontal disease.
Tidsramme: Up to 20 minutes
|
The recommendation by the dentist was based on a questionnarie containing a clinical hypothetical situation and the information about the usual efficacy of systemic antibiotics adjunct to periodontal treatment.
|
Up to 20 minutes
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
8. juni 2016
Primær færdiggørelse (Faktiske)
13. december 2016
Studieafslutning (Faktiske)
13. december 2016
Datoer for studieregistrering
Først indsendt
6. februar 2017
Først indsendt, der opfyldte QC-kriterier
10. februar 2017
Først opslået (Faktiske)
13. februar 2017
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
13. februar 2017
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
10. februar 2017
Sidst verificeret
1. februar 2017
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- riskcommunicationdentist2017
Plan for individuelle deltagerdata (IPD)
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