Skip to main content
main-content
Top

Tip

Swipe om te navigeren naar een ander artikel

23-10-2017 | Uitgave 3/2018

Quality of Life Research 3/2018

Bias in retrospective assessment of perceived dental treatment effects when using the Oral Health Impact Profile

Tijdschrift:
Quality of Life Research > Uitgave 3/2018
Auteurs:
Daniel R. Reissmann, Antje Erler, Christian Hirsch, Ira Sierwald, Carolina Machuca, Oliver Schierz
Belangrijke opmerkingen
Daniel R. Reissmann and Antje Erler have contributed equally to this work and are considered as joint first authors.

Abstract

Purpose

Aim of this exploratory study was to investigate whether a retrospective assessment of oral health-related quality of life (OHRQoL) using the Oral Health Impact Profile (OHIP) is susceptible to bias such as implicit theory of change and cognitive dissonance.

Methods

In this prospective clinical study, a sample of 126 adult patients (age 17–83 years, 49% women) requiring prosthodontic treatment was consecutively recruited. The OHRQoL was assessed using the 49-item OHIP at baseline and at follow-up. Additionally, patients were asked at follow-up to retrospectively rate their oral health status at baseline (retrospective pretest or then-test) and the change in oral health status using a global transition question. Furthermore, patients’ ratings of overall oral health and general health were used as validity criteria for the OHRQoL assessments. Response shift was calculated as the difference between the initial and retrospective baseline assessments.

Results

Baseline and retrospective pretest did not differ substantially in terms of internal consistency and convergent validity. Response shift was more pronounced when patients perceived a large change in OHRQoL during treatment. Retrospective pretests were more highly correlated with the baseline than with the follow-up assessment.

Conclusion

Findings suggest that retrospective assessments of OHRQoL using the OHIP-49 are susceptible to bias. Cognitive dissonance is more likely to appear as a source of bias than implicit theory of change.

Log in om toegang te krijgen

Met onderstaand(e) abonnement(en) heeft u direct toegang:

BSL Podotherapeut Totaal

Binnen de bundel kunt u gebruik maken van boeken, tijdschriften, e-learnings, web-tv's en uitlegvideo's. BSL Podotherapeut Totaal is overal toegankelijk; via uw PC, tablet of smartphone.

Literatuur
Over dit artikel

Andere artikelen Uitgave 3/2018

Quality of Life Research 3/2018 Naar de uitgave