Osteoarthritis

Predicting the onset of end-stage knee osteoarthritis over two- and five-years using machine learning

Semin Arthritis RheumPublished Prediction model development and validation study

Authors' conclusion

Our study unveils a robust, externally validated machine learning tool proficient in predicting the onset of esKOA over the next 2 to 5 years.

Study context

Population
Participants of the Osteoarthritis Initiative (OAI; development and internal validation) and the Multicentre Osteoarthritis Study (MOST; external validation)3,114 training, 606 validation
Outcome
Onset of end-stage knee OA (end-stage KOA (esKOA)): severe radiographic knee osteoarthritis (KOA) with moderate/severe symptoms or mild/moderate radiographic KOA with persistent/intense symptoms
Follow-up
2-to-2.5 years and 4-to-5 years
Methodological detailsmachine learning, external validation
  • Machine learning
  • External validation

Performance

As reported in the abstract

External validation (MOST) of esKOA prediction, AUC

Right knee, 2.5 years: AUC

0.847

95 % CI 0.811 to 0.882

Right knee, 5 years: AUC

0.853

95 % CI 0.823 to 0.881

Left knee, 2.5 years: AUC

0.824

95 % CI 0.782 to 0.857

Left knee, 5 years: AUC

0.807

95 % CI 0.768 to 0.843

Further findings

Models with fewer predictors

Comparable performance

Original publication

Predicting the onset of end-stage knee osteoarthritis over two- and five-years using machine learning. Semin Arthritis Rheum. Published 16 March 2024. doi:10.1016/j.semarthrit.2024.152433

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