Validation of a quality of life questionnaire for critically ill patients
- R. Rivera FernandezAffiliated withServicio de Medicina Intensiva, CRT Hospital Virgen de las Nieves
- , J. J. Sanchez CruzAffiliated withEscuela Andaluza de Salud Pública
- , G. Vazquez MataAffiliated withServicio de Medicina Intensiva, CRT Hospital Virgen de las Nieves
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Development and validation of quality of life questionnaire for critical care patients.
Intensive care unit (ICU) of a general hospital and ICUs of 83 Spanish hospitals.
Patients admitted to the ICU>18 years of age; close family members.
A committee of experts designed a questionnaire with characteristics judged essential for intensive care use: easy, quick administration (5–10 min); capable of completion by patient or close family member, by direct or telephone interview. Fifteen items relevant to critical care patients were grouped in three subscales: basic physiological activities, normal daily activities, and emotional state. Reproducibility of interobserver, intraobserver, patient/family member and telephone/direct interviews was analysed and also internal consistency, responsiveness, and main components.
Internal consistency (578 patients): Cronbach's alpha coefficient=0.85. Reproducibility: intraobserver reproducibility (n=150): Spearman correlation coefficient=0.92. Interobserver (n=85); correlation=0.92. Patient/family member (n=81): correlation=0.92. Telephone/direct interview (n=54): correlation=0.96. Validity: factorial analysis confirmed that the three subscales were fundamental questionnaire components. There was good concordance between questionnaire/subscale and Glasgow Outcome Scale (GOS) results. Responsiveness: quality of life score changes between preadmission and 6 months' postdischarge correlated with GOS findings (weighted kappa index=0.56).
Questionnaire meets objectives recommended for critical care use, and fulfills essential requirements of validity and reproducibility when applied to critically ill patients.
Key wordsHealth status Intensive care Quality of life
- Validation of a quality of life questionnaire for critically ill patients
Intensive Care Medicine
Volume 22, Issue 10 , pp 1034-1042
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