The impact of axial spondyloarthritis on quality of life (QoL): a comparison with the impact of moderate to end-stage chronic kidney disease on QoL.
PURPOSE: The purpose of the study was to assess the impact of axial spondyloarthritis (axSpA) on patients' quality of life (QoL) compared to patients with moderate to end-stage chronic kidney disease (CKD). METHODS: We conducted secondary analysis of QoL data obtained from patients with axSpA and CKD from 2011 to 2014. QoL was assessed using the SF-36 version 2 and KDQoL-SF for patients with axSpA and CKD, respectively. Patients with CKD were subcategorized to CKD-pre-dialysis, hemodialysis (CKD-HD) and peritoneal dialysis (CKD-PD). Linear regression was used to compare QoL between patients with axSpA and CKD after adjusting for age, gender, ethnicity, education level, and marital status. RESULTS: A total of 765 patients (mean age 54.6, 63.0% males, 69.0% Chinese) were analyzed, of which 188 (24.5%) had axSpA. Patients with axSpA had poorer SF-36 bodily pain (BP) scores (axSpA: reference; CKD-pre-dialysis β: 11.04, p < 0.001; CKD-HD β: 9.52, p < 0.001; CKD-PD β: 10.35, p < 0.001) and higher general health scores (axSpA: reference; CKD-pre-dialysis β: - 7.87, p < 0.001; CKD-HD β: - 7.14, p < 0.001, CKD-PD β: - 7.25, p < 0.001) as compared to patients with CKD. Generally, patients with axSpA had poorer SF-36 scores than patients with CKD-pre-dialysis and similar SF-36 scores compared to patients with CKD-HD or CKD-PD. CONCLUSIONS: The burden of axSpA on QoL is not trivial and is comparable to patients with CKD-HD or CKD-PD.
Kwan, YH; Fong, W; How, P; Wee, H-L; Leung, YY; Phang, JK; Lui, NL; Tan, CS; Malhotra, R; Østbye, T; Thumboo, J
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