Development and validation of a patient-centered outcome measure for young adults with pediatric hip conditions: the “Quality of Life, Concerns and Impact Measure”
2019
Purpose: To develop and validate a patient-centered, evaluative outcome measure to assess
patient-significant and identified impacts of the three pediatric hip conditions (the “Quality of
Life, Concerns and Impact Measure” (QoLCI following revision, it was piloted with a group of clinicians
and patients to assess its patient and clinical utility, face and content validity. The final,
refined prototype measure (QoLCI 4% (9) PHC not stated. The scale showed good
acceptability (few missing items, good spread, low floor/ceiling effects), relevance (76%
stating they would find the measure useful in their discussions with clinicians), and good
internal consistency (Cronbach’s α=0.98; average ICC=0.98). Hypotheses on convergent
validity (with the General Health Questionnaire, to measure depression, and the
International Hip Outcome Tool Short Form, to measure quality of life) and divergent
validity (with the General Self-Efficacy Scale, to measure coping) were confirmed.
Conclusion: The 64-item QoL&CI measure is a practical and valid measure addressing
areas of clinical and patient significance and has potential value to assist patients and
clinicians in discussions about treatment choices and treatment progress. Future research
will address further psychometric testing (test–retest validity and responsiveness to change),
in additional sites, and embedding the measure into clinical practice.
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