Clinical prediction rule	CPR
Confidence interval	CI
Knee osteoarthritis	Knee OA
Transcranial direct current stimulation	tDCS
Primary motor cortex	M1
Descending pain inhibitory system	DPIS
Non-invasive brain stimulation	NIBS
Western Ontario and McMaster Universities’ osteoarthritis index	WOMAC
Minimal detectable change	MDC
Minimal clinically important difference	MCID
Standard error of measurement	SEM
Minimum important change	MIC
Visual analog mood scale	VAMS
Mental component score	MCS
Physical component score	PCS
12-Item short form health survey	SF12
Timed up and go test	TUGT
Pain pressure threshold	PPT
Conditioned pain modulation	CPM
Area under the curve	AUC