Identification and prediction of difficult-to-treat rheumatoid arthritis patients in structured and unstructured routine care data: results from a hackathon

Table 5 The number of predicted D2T and non-D2T RA patients

Prediction	Validation
Prediction	Clinically classified D2T RA	Clinically classified non-D2T RA	Total
D2T RA	22	44	66
Non-D2T RA	6	44	50
Total	28	88	116

Predictions are based on data from before the start of the first b/tsDMARD
b/tsDMARD biological or targeted synthetic disease-modifying antirheumatic drug, D2T difficult-to-treat, RA rheumatoid arthritis
*Clinical classification of D2T and non-D2T RA patients as performed in the cross-sectional study [6]
A decision threshold of 0.15 was applied

ISSN: 1478-6362