In 1,000 repeats, 70 % of samples were selected for threshold optimization and 30 % for evaluation, ensuring that no training data appeared in the test set. Out-of-sample performance was estimated by examining
This will provide insight into potential risk factors, in terms of age and gender and other sociodemographic factors, comorbidity, and prescribing history including opioid strength, type and prescription repeats. A population‐based data linkage study could also provide insight into potential drug ...