Article

OBJECTIVE: To develop and validate a self-reporting questionnaire assessing the
burden of exercise therapy for patients with chronic conditions. DESIGN: Measurement properties of an instrument. SETTING: Outpatient clinics and tertiary
care hospital. PARTICIPANTS: Patients (N=201) with at least 1 chronic condition
and performing exercise therapy. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The dimensional structure of the questionnaire was assessed by
principal component analysis. Construct validity of the instrument was assessed
by exploring convergent validity with the Treatment Burden Questionnaire (TBQ)
and divergent validity with pain, self-efficacy, treatment satisfaction, and
health state. Reliability was assessed with the Cronbach alpha coefficient, a
test-retest method using the intraclass correlation coefficient (ICC), and
Bland-Altman plotting. RESULTS: A preliminary list of items was developed from
semistructured interviews with 28 patients and reviewed by 2 expert physicians.
Items obtained were reduced. Then a sample of 163 patients was used to measure
the psychometrics of the Exercise Therapy Burden Questionnaire (ETBQ), consisting
of 10 items. Principal component analysis extracted 1 dimension. The Cronbach
alpha was .86 (.82-.89). Test-retest reliability (n=24 patients) was good with an
ICC of .93 (.85-.97), and Bland-Altman analysis did not reveal a systematic
trend. The ETBQ showed expected convergent validity with the TBQ (rho=.52) and
expected divergent validity with pain (rho=.37), self-efficacy (rho=-.34),
treatment satisfaction (rho=-.49), and perceived health state (rho=-.28).
CONCLUSIONS: The ETBQ is the first questionnaire assessing exercise therapy
burden in patients with chronic conditions. Its psychometric properties are
promising.
CI - Copyright (c) 2017 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS