Pavelka 2002.

Methods	Randomized controlled trial Double blinded Parallel group Single center
Participants	Outpatients with osteoarthritis of the knee Country: Prague, Czech Republic N = 202 Mean age = 62.3 years Female: 78% Male: 22%
Interventions	GS 1500 mg PO OD versus placebo PO OD Duration: 3 years
Outcomes	WOMAC pain WOMAC stiffness WOMAC function WOMAC total Lequesne Index Joint space narrowing (x‐ray)
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Low risk	A ‐ Adequate