Pharmacy Medical News about low back pain; Fear of Daily Activities Questionnaire

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Development of a Self-Report Measure of Fearful Activities for Patients With Low Back Pain: The Fear of Daily Activities Questionnaire
Physical Therapy, 09/02/09

George SZ et al. – The Fear of Daily Activities Questionnaire (FDAQ) is a potentially viable measure for fear of specific activities in physical therapy settings. These analyses suggest the FDAQ may be appropriate for determining graded exposure treatment plans and monitoring changes in fear levels, but is not appropriate as a screening tool.

Methods

A prospective cohort study. Reliability and validity cohorts were recruited from outpatient physical therapy clinics.
Analyses for the reliability cohort included internal consistency and 48–hour test–retest coefficients, as well as standard error of measurement and minimal detectable change estimates.
Analyses for the validity cohort included factor analysis for construct validity and correlation and multiple regression analyses for concurrent and predictive validity.
Four–week responsiveness was assessed by paired t test, effect size calculation, and percentage of patients meeting or achieving MDC criterion.

Results

The FDAQ demonstrated adequate internal consistency and 48–hour test–retest properties.
Factor analysis suggested a 2– or 3–factor solution consisting of loaded spine, postural, and spinal movement factors.
The FDAQ demonstrated concurrent validity by contributing variance to disability (baseline and 4 weeks) and physical impairment (baseline) scores.
In predictive validity analyses, baseline FDAQ scores did not contribute variance to 4–week disability and physical impairment scores, but changes in FDAQ scores were associated with changes in disability.
The FDAQ scores significantly decreased over a 4–week treatment period, with an effect size of .86 and 55% of participants meeting the minimal detectable change criterion.

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