Table 2.

Summary of results from the eligible studies (tele-rehabilitation (TR); office-based rehabilitation (OB); control (CL); WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index); relative risk reduction (RRR)).

Study	Interventions	n(Group) = Sample Size	Mean within-Group Difference from Baseline	Relative Risk Reduction	TR vs. OB (p Values)
Allen et al. [18]			Pain WOMAC-Month 4	Pain WOMAC-Month 4	0.20
	TR	n(TR) = 112	TR: 1.59	RRR TR: 7.9%
	OB	n(OB) = 129	OB: 1.11	RRR OB: 5.5%
	CL	n(CL) = 63	CL: 0.66	RRR CL: 3.3%
			Pain WOMAC-Month 12	Pain WOMAC-Month 12	0.22
			TR: 1.15	RRR TR: 5.7%
			OB: 0.7	RRR OB: 3.5%
			CL: 0.64	RRR CL: 3.2%
			Function WOMAC-Month 4	Function WOMAC-Month 4	0.33
			TR: 3.74	RRR TR: 5.5%
			OB: 4.77	RRR OB: 7.0%
			CL: 2.3	RRR CL: 3.4%
			Function WOMAC-Month 12	Function WOMAC-Month12	0.93
			TR: 3.4	RRR TR: 5.0%
			OB: 3.3	RRR OB: 4.8%
			CL: 1.51	RRR CL: 2.2%
			Total WOMAC-Month 4	Total WOMAC-Month 4	0.65
			TR: 6.06	RRR TR: 6.3%
			OB: 6.73	RRR OB: 7.0%
			CL: 3.37	RRR CL: 3.5%
			Total WOMAC-Month 12	Total WOMAC-Month 12	0.51
			TR: 5.46	RRR TR: 5.6%
			OB: 4.42 CL: 2.83	RRR OB: 4.6% RRR CL: 2.9%
Azma et al. [19]			Total WOMAC-Week 6	Total WOMAC-Week 6	0.66
	TR	n(TR) = 27	TR: 31.79	RRR TR: 31.8%
	OB	n(OB) = 27	OB: 31.54	RRR OB: 31.5%
Bennell et al. [20]			Pain WOMAC-Month 6	Pain WOMAC-Month 6	>0.05
	Rehabilitation + TR	n(TR) = 84	TR: 3.5	RRR TR: 17.5%
	OB	n(OB) = 84	OB: 2.9	RRR OB: 14.5%
			Function WOMAC-Month 6	Function WOMAC-Month 6	>0.05
			TR: 11.8	RRR TR: 17.3%
			OB: 11.4	RRR OB: 16.8%