Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)

Objectives To examine the acceptability and validity of two patient-reported outcome measures (PROMs) for adult acne, comparing them to the validated Acne-specific Quality of Life (Acne-QoL) measure.Design Mixed-methods validation study.Setting Participants were recruited by (1) mail-out through pri...

Full description

Saved in:
Bibliographic Details
Main Authors: Ingrid Muller, Miriam Santer, Beth Stuart, Paul Little, Karen Thomas, Samantha Hornsey, Alison M Layton, Leanne Morrison, Jamie King
Format: Article
Language:English
Published: BMJ Publishing Group 2021-03-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/11/3/e034047.full
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1846162194480234496
author Ingrid Muller
Miriam Santer
Beth Stuart
Paul Little
Karen Thomas
Samantha Hornsey
Alison M Layton
Leanne Morrison
Jamie King
author_facet Ingrid Muller
Miriam Santer
Beth Stuart
Paul Little
Karen Thomas
Samantha Hornsey
Alison M Layton
Leanne Morrison
Jamie King
author_sort Ingrid Muller
collection DOAJ
description Objectives To examine the acceptability and validity of two patient-reported outcome measures (PROMs) for adult acne, comparing them to the validated Acne-specific Quality of Life (Acne-QoL) measure.Design Mixed-methods validation study.Setting Participants were recruited by (1) mail-out through primary care if they had ever consulted for acne and received a prescription for acne treatment within the last 6 months, (2) opportunistically in secondary care and (3) poster advertisement in community venues.Participants 221 (204 quantitative and 17 qualitative) participants with acne, aged 18–50 years.Outcome measures Quantitative sub-study participants completed Acne-QoL, Skindex-16 and Comprehensive Acne Quality of Life Scale (CompAQ) at baseline, 24 hours and 6 weeks. Qualitative sub-study participants took part in cognitive think-aloud interviews, while completing the same measures. Transcribed audio recordings were analysed using inductive thematic analysis.Results Quantitative analyses suggested high internal consistency (Cronbach’s alpha 0.74–0.96) and reliability (intraclass correlation coefficient values 0.88–0.97) for both questionnaires. Both scales showed floor effects on some subdomains. Skindex-16 and CompAQ showed good evidence of construct validity when compared with Acne-QoL with Spearman’s correlation coefficients 0.54–0.81, and good repeatability over 24 hours.Qualitative data uncovered wide-ranging views regarding usability and acceptability. Interviewees held strong but differing views about layout, question/response wording, redundant/similar questions and guidance notes. Similarly, interviewees differed in perceptions of acceptability of the different scales, particularly on relatability of questions and emotive reactions to scales.Conclusions All PROMs performed well in statistical analyses. No PROM showed superior usability and acceptability in the qualitative study. Any PROM should be acceptable for further research in adult acne but researchers should consider the different domains and whether they will measure only facial or facial and trunk acne before making a selection. A new PROM or further evaluation of novel PROMs may be beneficial.
format Article
id doaj-art-c684ac67b84f4daa8a1c6225087f61c9
institution Kabale University
issn 2044-6055
language English
publishDate 2021-03-01
publisher BMJ Publishing Group
record_format Article
series BMJ Open
spelling doaj-art-c684ac67b84f4daa8a1c6225087f61c92024-11-20T17:30:08ZengBMJ Publishing GroupBMJ Open2044-60552021-03-0111310.1136/bmjopen-2019-034047Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)Ingrid Muller0Miriam Santer1Beth Stuart2Paul Little3Karen Thomas4Samantha Hornsey5Alison M Layton6Leanne Morrison7Jamie King8associate professorPrimary Care, Population Science and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UKPrimary Care Population Sciences and Medical Education Unit, University of Southampton School of Medicine, Southampton, UKPrimary Care Research Centre, University of Southampton, Southampton, UKDivision of Injury Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USAUniversity Of Southampton, Southampton, UK8 Skin Research Centre, Hull York Medical School, University of York, York, North Yorkshire, UK1 School of Psychology, University of Southampton, Southampton, UKFaculty of Medicine, Primary Care, Population Sciences and Medical Education, University of Southampton, Southampton, Hampshire, UKObjectives To examine the acceptability and validity of two patient-reported outcome measures (PROMs) for adult acne, comparing them to the validated Acne-specific Quality of Life (Acne-QoL) measure.Design Mixed-methods validation study.Setting Participants were recruited by (1) mail-out through primary care if they had ever consulted for acne and received a prescription for acne treatment within the last 6 months, (2) opportunistically in secondary care and (3) poster advertisement in community venues.Participants 221 (204 quantitative and 17 qualitative) participants with acne, aged 18–50 years.Outcome measures Quantitative sub-study participants completed Acne-QoL, Skindex-16 and Comprehensive Acne Quality of Life Scale (CompAQ) at baseline, 24 hours and 6 weeks. Qualitative sub-study participants took part in cognitive think-aloud interviews, while completing the same measures. Transcribed audio recordings were analysed using inductive thematic analysis.Results Quantitative analyses suggested high internal consistency (Cronbach’s alpha 0.74–0.96) and reliability (intraclass correlation coefficient values 0.88–0.97) for both questionnaires. Both scales showed floor effects on some subdomains. Skindex-16 and CompAQ showed good evidence of construct validity when compared with Acne-QoL with Spearman’s correlation coefficients 0.54–0.81, and good repeatability over 24 hours.Qualitative data uncovered wide-ranging views regarding usability and acceptability. Interviewees held strong but differing views about layout, question/response wording, redundant/similar questions and guidance notes. Similarly, interviewees differed in perceptions of acceptability of the different scales, particularly on relatability of questions and emotive reactions to scales.Conclusions All PROMs performed well in statistical analyses. No PROM showed superior usability and acceptability in the qualitative study. Any PROM should be acceptable for further research in adult acne but researchers should consider the different domains and whether they will measure only facial or facial and trunk acne before making a selection. A new PROM or further evaluation of novel PROMs may be beneficial.https://bmjopen.bmj.com/content/11/3/e034047.full
spellingShingle Ingrid Muller
Miriam Santer
Beth Stuart
Paul Little
Karen Thomas
Samantha Hornsey
Alison M Layton
Leanne Morrison
Jamie King
Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)
BMJ Open
title Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)
title_full Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)
title_fullStr Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)
title_full_unstemmed Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)
title_short Patient-reported outcome measures for acne: a mixed-methods validation study (acne PROMs)
title_sort patient reported outcome measures for acne a mixed methods validation study acne proms
url https://bmjopen.bmj.com/content/11/3/e034047.full
work_keys_str_mv AT ingridmuller patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT miriamsanter patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT bethstuart patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT paullittle patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT karenthomas patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT samanthahornsey patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT alisonmlayton patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT leannemorrison patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms
AT jamieking patientreportedoutcomemeasuresforacneamixedmethodsvalidationstudyacneproms