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Hospital Healthcare Resource Utilization and Associated Hospital Costs of Patients With Lupus Nephritis in China: A
Xin He1, Xiaochen Zhu2, Zhiliu Tang1
1Value Evidence and Outcomes, GSK, Shanghai, China.
Insights
Patients with lupus nephritis (LN) in China incur significantly higher healthcare resource utilization and costs than those with systemic lupus erythematosus (SLE). End-stage kidney disease (ESKD) further elevates this burden, underscoring the need for early LN management.
Area of Science:
- Nephrology
- Rheumatology
- Health Economics
Background:
- Lupus nephritis (LN) is a severe manifestation of systemic lupus erythematosus (SLE).
- Understanding healthcare resource utilization (HCRU) and costs associated with LN in China is crucial for resource allocation and patient management.
- The impact of end-stage kidney disease (ESKD) on HCRU and costs in LN patients requires further investigation.
Purpose of the Study:
- To assess and compare hospital HCRU and costs for patients with LN in China against a broader SLE cohort.
- To explore the additional impact of ESKD on HCRU and costs among patients with LN.
- To provide data supporting early diagnosis and management strategies for LN in China.
Main Methods:
- Retrospective analysis of administrative claims data from China.
- Identification of patients with SLE and LN using diagnosis codes and keywords.
- Subcategorization of LN patients based on the presence of ESKD; analysis of all-cause and disease-specific HCRU and medical costs.
Main Results:
- A total of 3645 SLE patients were included, with 404 (11%) diagnosed with LN; 142 (35%) of LN patients had ESKD.
- Patients with LN exhibited significantly higher healthcare visits per patient per month (PPPM) (2.08) compared to the SLE cohort (0.92) (P < .0001).
- Median all-cause costs PPPM were substantially greater for LN patients ($287.46) versus SLE patients ($113.09) (P < .0001); ESKD further increased these metrics.
Conclusions:
- Chinese patients with LN demonstrate significantly higher HCRU and healthcare costs compared to the general SLE population.
- The presence of ESKD exacerbates the HCRU and economic burden in patients with LN.
- These findings highlight the critical need for early LN diagnosis and prompt management to alleviate the substantial economic impact.
Objectives:
Assess hospital healthcare resource utilization (HCRU) and associated hospital costs of patients with lupus nephritis (LN) in China and compare these outcomes with a systemic lupus erythematosus (SLE) cohort (SLE with/without LN) as well as exploring the effect of end-stage kidney disease (ESKD).
Methods:
This retrospective administrative claims-based analysis identified patients with SLE and SLE with LN from China using diagnosis codes and keywords. Patients with LN were subcategorized by presence of ESKD. Outcomes included all-cause and disease-specific HCRU (defined as healthcare visits including inpatient and outpatient visits) and medical costs (in 2022 US dollars).
Results:
In total, 3645 patients with SLE were included, of whom 404 (11%) had LN. Among those with LN, 142 (35%) had ESKD. Median (interquartile range) all-cause healthcare visits per patient per month (PPPM) was significantly greater for patients with LN (2.08 [4.01]) vs SLE (0.92 [1.64]; P < .0001). Patients with LN and ESKD (3.00 [4.18]) had numerically more all-cause healthcare visits PPPM compared with LN patients without ESKD (1.50 [3.45]). Median all-cause costs PPPM were significantly greater among patients with LN ($287.46 [477.15]) vs SLE ($113.09 [267.39]; P < .0001) and numerically higher for patients with LN and ESKD ($466.29 [958.90]) vs LN without ESKD ($223.50 [319.56]).
Conclusions:
Chinese patients with LN had greater HCRU and hospital healthcare costs compared with the general SLE cohort. This burden was higher for those with ESKD. These data highlight the substantial HCRU among patients with LN in China, especially those with ESKD, suggesting the need for early diagnosis and timely management of LN to mitigate the economic burden.
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