BMI	Body mass index
DMOAD	Disease-modifying osteoarthritis drug
ECLIA	Electrochemiluminescence immunoassay
ECM	Extracellular matrix
IGF-1	Insulin-like growth factor 1
LLOD	Lower limit of detection
LLOQ	Lower limit of quantification
MRI	Magnetic resonance imaging
OA	Osteoarthritis
PBS	Phosphate buffered saline
PINP	Procollagen type I N-terminal propeptides
PIIANP	Procollagen type IIA N-terminal propeptides
PIIBNP	Procollagen type IIB N-terminal propeptides
RA	Rheumatoid arthritis
SD	Standard deviation
SDS-PAGE	Sodium dodecyl sulfate-polyacrylamide gel electrophoresis
ULOD	Upper limit of detection