Background: This study aims to examine the treatment patterns of end-stage kidney disease (ESKD) among SLE patients and to compare the outcome of hemodialysis (HD) and peritoneal dialysis (PD).
Methods: SLE patients identified from the national administration dataset in 2005-2021 were linked to the Australia and New Zealand Dialysis and Transplant Registry to identify ESKD cases. The adjusted odds ratio of having PD instead of HD as the first treatment for ESKD for Asian, Māori, and Pacific compared with European/others was estimated with the logistic regression model. The adjusted hazards ratio of all-cause mortality for patients having PD first compared with HD first was calculated.
Results: Two hundred ten ESKD patients with SLE were identified. Two thirds (137/210) of the ESKD patients had HD as the first treatment, and one third (68, 32.4%) had PD first. Around 60% of Asian patients had PD as the first treatment, compared with 30% in other ethnic groups. The adjusted odds ratio of having PD as the first treatment for Asian patients compared with European/others was 3.00 (95% confidence interval, 1.16-7.73). The adjusted hazards ratio of all-cause mortality for patients in the PD group compared with the HD group was 0.60 (95% confidence interval, 0.37-0.97).
Conclusions: Asian patients with ESKD were more likely to have PD as the first treatment. The optimal dialysis type for ESKD patients with SLE might be different from ESKD patients caused by other diseases. ESKD patients with SLE receiving PD first had superior outcomes than patients receiving HD first.
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