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Pain. 2017 Aug;158(8):1577-1585. doi: 10.1097/j.pain.0000000000000954.

Validation of EQ-5D and 15D in the assessment of health-related quality of life in chronic pain.

Author information

1
aDivision of Pain Medicine, Department of Anaesthesiology, Intensive Care and Pain Medicine, Helsinki University Hospital, University of Helsinki, Helsinki, Finland bUnit of Primary Health Care, Kuopio University Hospital, University of Eastern Finland, Kuopio, Finland cPain Clinic, Service Division 2: Perioperative Services, Intensive Care Medicine and Pain Management, Turku University Hospital, University of Turku, Turku, Finland dDepartment of Anaesthesiology, Intensive Care and Pain Medicine, South Karelia Central Hospital, Lappeenranta, Finland eInstitute of Dentistry, University of Turku, Turku, Finland.

Abstract

Chronic pain has a significant impact on quality of life. Measurement of health-related quality of life (HRQoL) is essential in the assessment of pain management outcomes, but different instruments have produced varying results. We assessed the validity of 2 HRQoL instruments, EuroQol 5 dimensions questionnaire (EQ-5D) and 15-dimensional health-related quality of life measure (15D), in patients with challenging chronic pain. Three hundred ninety-one chronic noncancer pain patients referred to tertiary pain clinics completed EQ-5D, 15D, and a broad set of questionnaires mapping socioeconomic factors, self-rated health, pain intensity and interference, depression, pain acceptance, pain-related anxiety, and sleep. The 2 HRQoL instruments were compared with each other, and head-to-head comparisons were made with self-rated health and the symptom-specific questionnaires. 15D and EQ-5D showed moderate agreement (ρ = 0.66), but there were also considerable differences between the instruments. 15D correlated better with self-rated health than EQ-5D (ρ = -0.62 vs -0.45, P < 0.001). The EQ-5D appeared less sensitive than 15D especially in those patients with chronic pain who had a better health status. The principal component constructed from measures of pain intensity and interference, anxiety, pain acceptance, depression, and sleep had higher standardized beta coefficients with 15D than with EQ-5D (P = 0.038). The principal component explained more variance in the 15D (R = 0.65) than in the EQ-5D (R = 0.43). The study identified differences in the pain-related variables between the EQ-5D and the 15D. In patients with chronic pain, both instruments are valid, but 15D appears somewhat more sensitive than EQ-5D.

PMID:
28715354
DOI:
10.1097/j.pain.0000000000000954
[Indexed for MEDLINE]

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