Abstract
Objectives
To study the aggregation of multiple comorbidities in people with gout and explore differences in prognosis of gout flares among different subgroups.
Methods
Hierarchical clustering was performed to identify homogeneous subgroups among 2639 people with gout using eight comorbidities. A one-year follow-up of acute gout flares in 463 of these people was conducted; the incidence and the timing of gout flares in each cluster were assessed to explore prognosis of gout flares. Binary logistic regression was applied to assess factors associated with gout flares.
Results
In baseline study, we identified five subgroups (C1–C5). C1 (n = 671, 25%) was characterized by isolated gout with few comorbidities. C2 (n = 258, 10%) were all obese. Almost all people in C3 (n = 335, 13%) had diabetes (99.7%). All people in C4 (n = 938, 36%) had dyslipidemia. C5 (n = 437, 17%) had the highest proportion of cardiovascular disease (CVD, 53%), chronic kidney disease (CKD, 56%), and cancer (7%). In follow-up study, C5 had the highest incidence (71.9%) and earliest onset (median 3 months) of gout flares. C2 had the lowest incidence (52.1%) and the latest onset (median 10 months) of gout flares. The highest relative risk for gout recurrent was seen for C5 (OR = 2.09). Other factors associated with the risk of gout flares were age at diagnosis of gout, duration of gout, presence of tophi, and smoking ≥ 20 cigarettes/day.
Conclusions
We clustered people with gout into five groups with varying comorbidities. People with CVD, CKD, and cancer had the highest risk of gout flares and should receive comprehensive care.
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Data availability
The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
We thank the trial staff as well as all people with gout who agreed to participate in this study.
Funding
This study was supported by the National Key R&D Programme of China (2019YFA0904500, 2022YFC2503300), the National Natural Science Foundation of China (81870616, 82170904), the Clinical Trial Programme of Shanghai Municipal Health Commission (202240130), the Clinical Trial Programme of Shanghai No.10 Hospital (YNCR2A009), and Medical enterprise integration Innovation achievement transformation Programme of Shanghai Shen-kang Hospital Development Centre (SHDC2022CRD042) to HC.
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SL: designed the study, analyzed and interpreted the data, and wrote the paper. HS: participated in the conception of the study. SY, NL and YG: participated in the collection of trial data. SQ and HC made critical revisions to the original manuscript.
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This study was approved by the Ethics Committee of Shanghai Tenth People’s Hospital. It was conducted in accordance with the Declaration of Helsinki and the Guidelines for Good Clinical Practice.
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Liu, S., Sun, H., Yang, S. et al. Clustering of gout-related comorbidities and their relationship with gout flares: a data-driven cluster analysis of eight comorbidities. J Endocrinol Invest 47, 1119–1128 (2024). https://doi.org/10.1007/s40618-023-02224-y
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DOI: https://doi.org/10.1007/s40618-023-02224-y