TABLE 3.

Comparison of intervention effects and MCID.

Outcome	MCID	High intensity laser therapy Vs. Placebo laser (plus exercise)
		*Change scores	#Clinical decision
VAS-pain	0.9	1.66 (1.48, 1.84)	Very likely
WOMAC-pain	1.42	2.74 (2.41, 3.08)	Very likely
WOMAC-stiffness	1.30	0.78 (0.52, 1.04)	Very unlikely
WOMAC-function	7.65	8.37 (6.90, 9.85)	Likely
WOMAC-total	10.37	10.87 (8.85, 12.88)	Likely

MCID, minimal clinically important difference; VAS, visual analog scale; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index. *Values are weighted mean difference (95% confidence interval). ^#Likely to obtain an effect of the stated size when intervention is used. Very likely, The mean of change scores outweigh MCID, and the lower bound of the 95% CI is more than the MCID. Likely, The mean of change scores outweigh MCID, but the lower bound of the 95% CI is less than the MCID. Very unlikely, The mean of change scores below MCID, and the upper bound of the 95% CI is less than the MCID.