Diabetes technology

Proof-of-Concept Study of Using Supervised Machine Learning Algorithms to Predict Self-Care and Glycemic Control in Type 1 Diabetes Patients on Insulin Pump Therapy

Endocr PractPublished Retrospective cohort study

Authors' conclusion

These proof-of-concept analyses demonstrate the feasibility of using SMLAs to develop clinically relevant predictive models of adherence with IPSMB criteria and glycemic control within 6 months. Subject to further study, nonlinear prediction models may perform better.

Study context

Population
Adults with T1D on insulin pump therapy (≥6 months), single centre
Participants
100 adults
Exposure
Three supervised machine learning algorithms: Logistic regression (LR) vs random forest (RF) vs K-nearest neighbor (k-NN)
Outcome
Prediction of meeting insulin pump self-management behavioral (IPSMB) criteria and achieving good glycemic response; discrimination (AUC-ROC) and calibration (Brier score)
Follow-up
Within 6 months
Methodological detailssingle-center, retrospective chart review, proof-of-concept, repeated three-fold cross-validation
  • Single-center
  • Retrospective chart review
  • Proof-of-concept
  • Repeated three-fold cross-validation

Main finding

As reported in the abstract

Adherence with IPSMB criteria: discrimination (AUC) and calibration
GroupValueAUCBrier
LR0.740.74
RF0.740.740.151
k-NN0.720.72

Value

LR0.74
RF0.74
k-NN0.72

AUC

LR0.74
RF0.74
k-NN0.72

Brier

LR— not stated in the abstract
RF0.151
k-NN— not stated in the abstract

Observational data: associations, not effects.

Further findings

OutcomeLRRFk-NN
Good glycemic response: discrimination (AUC) and calibration · within 6 months
AUC0.810.800.78
Brier— not stated in the abstract0.099— not stated in the abstract

— not stated in the abstract

Good glycemic response: discrimination (AUC) and calibration · within 6 months

Predictors of good glycemic response: baseline HbA1c, entering carbohydrates, following recommended bolus dose
Comparable discriminatory power; RF model better calibrated

Original publication

Proof-of-Concept Study of Using Supervised Machine Learning Algorithms to Predict Self-Care and Glycemic Control in Type 1 Diabetes Patients on Insulin Pump Therapy. Endocr Pract. Published 8 March 2023. doi:10.1016/j.eprac.2023.03.002

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