Using the standard error of measurement to identify important changes on the Asthma Quality of Life Questionnaire

Kathleen W. Wyrwich, William M. Tierney, Fredric D. Wolinsky

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

Objectives: To establish a link between the minimal important difference (MID) and the standard error of measurement (SEM) for all responsive dimensions of the Asthma Quality of Life Questionnaire (AQLQ). Methods: Secondary data analysis of baseline and follow-up interview data from 198 outpatients with asthma enrolled in a randomized controlled trial and receiving care at a major urban academic medical center's general medicine clinics. Domain statistics for baseline and follow-up interviews were examined for the AQLQ. The baseline SEM values were compared with established AQLQ MID standards using weighted κ values. Results: One SEM identified the MID in responsive AQLQ dimensions. Weighted κ values (0.88-0.93) validated excellent agreement between these two criteria. Conclusion: This is the third study to support using one SEM to identify important individual change in health-related quality of life (HRQoL) measures. However, refinement of the process for determining a measure's clinically meaningful differences is still needed to secure a link between the SEM and the identification of relevant HRQoL change over time.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalQuality of Life Research
Volume11
Issue number1
DOIs
StatePublished - 2002

Fingerprint

Asthma
Quality of Life
Interviews
Surveys and Questionnaires
Outpatients
Randomized Controlled Trials
Medicine

Keywords

  • Asthma
  • Dimensionality
  • Measurement
  • Quality of life
  • Relevant change
  • Reliability
  • Responsiveness
  • Sensitivity

ASJC Scopus subject areas

  • Rehabilitation
  • Nursing(all)

Cite this

Using the standard error of measurement to identify important changes on the Asthma Quality of Life Questionnaire. / Wyrwich, Kathleen W.; Tierney, William M.; Wolinsky, Fredric D.

In: Quality of Life Research, Vol. 11, No. 1, 2002, p. 1-7.

Research output: Contribution to journalArticle

Wyrwich, Kathleen W. ; Tierney, William M. ; Wolinsky, Fredric D. / Using the standard error of measurement to identify important changes on the Asthma Quality of Life Questionnaire. In: Quality of Life Research. 2002 ; Vol. 11, No. 1. pp. 1-7.
@article{08e51ace403e482aa51e72e5a5667abd,
title = "Using the standard error of measurement to identify important changes on the Asthma Quality of Life Questionnaire",
abstract = "Objectives: To establish a link between the minimal important difference (MID) and the standard error of measurement (SEM) for all responsive dimensions of the Asthma Quality of Life Questionnaire (AQLQ). Methods: Secondary data analysis of baseline and follow-up interview data from 198 outpatients with asthma enrolled in a randomized controlled trial and receiving care at a major urban academic medical center's general medicine clinics. Domain statistics for baseline and follow-up interviews were examined for the AQLQ. The baseline SEM values were compared with established AQLQ MID standards using weighted κ values. Results: One SEM identified the MID in responsive AQLQ dimensions. Weighted κ values (0.88-0.93) validated excellent agreement between these two criteria. Conclusion: This is the third study to support using one SEM to identify important individual change in health-related quality of life (HRQoL) measures. However, refinement of the process for determining a measure's clinically meaningful differences is still needed to secure a link between the SEM and the identification of relevant HRQoL change over time.",
keywords = "Asthma, Dimensionality, Measurement, Quality of life, Relevant change, Reliability, Responsiveness, Sensitivity",
author = "Wyrwich, {Kathleen W.} and Tierney, {William M.} and Wolinsky, {Fredric D.}",
year = "2002",
doi = "10.1023/A:1014485627744",
language = "English",
volume = "11",
pages = "1--7",
journal = "Quality of Life Research",
issn = "0962-9343",
publisher = "Springer Netherlands",
number = "1",

}

TY - JOUR

T1 - Using the standard error of measurement to identify important changes on the Asthma Quality of Life Questionnaire

AU - Wyrwich, Kathleen W.

AU - Tierney, William M.

AU - Wolinsky, Fredric D.

PY - 2002

Y1 - 2002

N2 - Objectives: To establish a link between the minimal important difference (MID) and the standard error of measurement (SEM) for all responsive dimensions of the Asthma Quality of Life Questionnaire (AQLQ). Methods: Secondary data analysis of baseline and follow-up interview data from 198 outpatients with asthma enrolled in a randomized controlled trial and receiving care at a major urban academic medical center's general medicine clinics. Domain statistics for baseline and follow-up interviews were examined for the AQLQ. The baseline SEM values were compared with established AQLQ MID standards using weighted κ values. Results: One SEM identified the MID in responsive AQLQ dimensions. Weighted κ values (0.88-0.93) validated excellent agreement between these two criteria. Conclusion: This is the third study to support using one SEM to identify important individual change in health-related quality of life (HRQoL) measures. However, refinement of the process for determining a measure's clinically meaningful differences is still needed to secure a link between the SEM and the identification of relevant HRQoL change over time.

AB - Objectives: To establish a link between the minimal important difference (MID) and the standard error of measurement (SEM) for all responsive dimensions of the Asthma Quality of Life Questionnaire (AQLQ). Methods: Secondary data analysis of baseline and follow-up interview data from 198 outpatients with asthma enrolled in a randomized controlled trial and receiving care at a major urban academic medical center's general medicine clinics. Domain statistics for baseline and follow-up interviews were examined for the AQLQ. The baseline SEM values were compared with established AQLQ MID standards using weighted κ values. Results: One SEM identified the MID in responsive AQLQ dimensions. Weighted κ values (0.88-0.93) validated excellent agreement between these two criteria. Conclusion: This is the third study to support using one SEM to identify important individual change in health-related quality of life (HRQoL) measures. However, refinement of the process for determining a measure's clinically meaningful differences is still needed to secure a link between the SEM and the identification of relevant HRQoL change over time.

KW - Asthma

KW - Dimensionality

KW - Measurement

KW - Quality of life

KW - Relevant change

KW - Reliability

KW - Responsiveness

KW - Sensitivity

UR - http://www.scopus.com/inward/record.url?scp=0036214037&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036214037&partnerID=8YFLogxK

U2 - 10.1023/A:1014485627744

DO - 10.1023/A:1014485627744

M3 - Article

VL - 11

SP - 1

EP - 7

JO - Quality of Life Research

JF - Quality of Life Research

SN - 0962-9343

IS - 1

ER -