Six-week high-intensity exercise program for middle-aged patients with knee osteoarthritis: a randomized controlled trial [ISRCTN20244858]

Table 3 Comparisons of change in SF-36 Physical and Mental Components Summaries (PCS and MCS) [23] between exercise and control group.

Short Form-36 item (SF-36) [22]		Exercise group		Control group
		mean	95%CI	mean	95%CI	p*
Physical Component Summary (PCS)	Baseline	42.5	24.4 – 57.5	43.8	24.2 – 57.3	0.49
	Change at 6 weeks	3.0	-5.9 – 13.4	0.3	-15.2 – 12.6	0.13
	Change at 6 months	3.0	-5.9 – 16.3	-0.7	-14.8 – 9.8	0.09
Mental Component Summary (MCS)	Baseline	55.6	40.2 – 66.2	56.3	37.0 – 67.0	0.63
	Change at 6 weeks	1.6	-10.6 – 15.0	-2.1	-16.9 – 11.5	0.04
	Change at 6 months	0.7	-18.1 – 13.2	-0.7	-16.8 – 12.8	0.40

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