US 11,948,691 B1
Predicting addiction relapse and decision support tool
Douglas S. McNair, Seattle, WA (US)
Assigned to Cerner Innovation, Inc., Kansas City, KS (US)
Filed by CERNER INNOVATION, INC., Kansas City, KS (US)
Filed on Jul. 16, 2021, as Appl. No. 17/378,245.
Application 17/378,245 is a continuation of application No. 15/719,151, filed on Sep. 28, 2017, granted, now 11,069,446.
Claims priority of provisional application 62/401,160, filed on Sep. 28, 2016.
This patent is subject to a terminal disclaimer.
Int. Cl. G16H 50/30 (2018.01); G06F 17/18 (2006.01)
CPC G16H 50/30 (2018.01) [G06F 17/18 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for predicting relapse or non-adherence in an individual subject based on a predictive model, the method comprising:
selecting a cohort of historical subjects in an electronic health records system with known relapse statuses;
retrieving for the selected cohort of historical subjects historical values for variables including one or more of treatment events, medication history, substance use history, demographic attributes, and laboratory tests;
standardizing the retrieved historical values using one or more processors to symmetrize and deskew distributions of ratio-scale or interval-scale variables included inthe retrieved historical values;
performing dimensionality reduction using Least Absolute Shrinkage and Selection Operator (LASSO) regression;
based on the LASSO regression, determining a set of statistically-significant independent variables and a set of dependent variables from the symmetrized and deskewed distributions of ratio-scale or interval-scale variables;
performing relative survival regression using multiplicative Cox Proportional Hazards relative survival regression of the set of dependent variables on the set of statistically-significant independent variables;
storing the independent variables' regression coefficients determined by the relative survival regression thereby forming the predictive model for determining likelihood of addiction relapse or non-adherence;
accessing the predictive model and corresponding model variables;
accessing a health record information corresponding to the individual subject, and extracting subject values corresponding to the model variables from the health record information of the individual subject;
standardizing the subject values using one or more processors to symmetrize and deskew ratio-scale or interval-scale values included in the subject values to generate a plurality of standardized values;
utilizing the predictive model and the plurality of standardized values to determinea predicted likelihood of relapse for the individual subject;
comparing the predicted likelihood of relapse with a predetermined threshold; and
responsive to the predicted likelihood of relapse exceeding the predetermined threshold, automatically modifying a care plan for the individual subject and providing the determined likelihood of relapse prediction to a caregiver associated with the individual subject via a notification, wherein modifying the care plan comprises increasing monitoring, modifying a pharmaceutical combination administered to the individual subject, or scheduling a caregiver visit with the individual subject.