Dentists' Understanding of Diagnostic Test Results and Treatment Efficacy. (RCDENT2017)
10. februar 2017 oppdatert av: 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.
Studieoversikt
Status
Fullført
Forhold
Intervensjon / Behandling
Studietype
Intervensjonell
Registrering (Faktiske)
101
Fase
- Ikke aktuelt
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Barn
- Voksen
- Eldre voksen
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
Inclusion Criteria:
- Graduated dentist undergoing a postgraduate course in a public university in Rio de Janeiro.
Exclusion Criteria:
- None.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Firemannsrom
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / 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.
|
|
Eksperimentell: 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.
|
|
Eksperimentell: 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.
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
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 |
Tiltaksbeskrivelse |
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
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart (Faktiske)
8. juni 2016
Primær fullføring (Faktiske)
13. desember 2016
Studiet fullført (Faktiske)
13. desember 2016
Datoer for studieregistrering
Først innsendt
6. februar 2017
Først innsendt som oppfylte QC-kriteriene
10. februar 2017
Først lagt ut (Faktiske)
13. februar 2017
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
13. februar 2017
Siste oppdatering sendt inn som oppfylte QC-kriteriene
10. februar 2017
Sist bekreftet
1. februar 2017
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
- riskcommunicationdentist2017
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
NEI
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Nei
Studerer et amerikansk FDA-regulert enhetsprodukt
Nei
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