ACR	American College Testing
AdaBoost	Adaptive Boosting
AUC-ROC	Area under the Receiver Operating Characteristic Curve
bDMARDs	Biological Disease-Modifying Antirheumatic Drugs
BMI	Body Mass Index
CDAI	Clinical Disease Activity Index
CCP	Cyclic Citrullinated Peptide Antibodies
CRP	C-Reactive Protein
csDMARDs	Conventional Disease-Modifying Antirheumatic Drugs
DAS28-CRP	Disease Activity Score-28 using C-Reactive Protein
DAS28-ESR	Disease Activity Score-28 using Erythrocyte Sedimentation Rate
ESR	Erythrocyte Sedimentation Rate
EULAR	European Alliance of Associations for Rheumatology
HAQ	Health Assessment Questionnaire
KNN	K-nearest Neighbors
KOBIO	Korean College of Rheumatology Biologics and Targeted Therapy Registry
LDA	Low Disease Activity
ML	Machine Learning
MICE	Multiple Imputations by Chained Equation
NAO	Nearest Available Observation
NSAIDs	Non-steroidal Anti-inflammatory Drugs
RA	Rheumatoid Arthritis
RF	Rheumatoid Factor
RF (Model)	Random Forest
SD	Standard Deviation
SDAI	Simple Disease Activity Index
SHAP	Shapley Additive Explanations
SJC28	Swollen Joint Count based on 28 joints
SVM	Support Vector Machines
TJC28	Tender Joint Count based on 28 joints
VAS	Visual Analogue Scales
XGBoost	Extreme Gradient Boosting
MCC	Matthews Correlation Coefficient