TABLE 4.

WOMAC, PASE and self-reported pain levels at initial visit and 12-month follow-up^*

	ID	WOMAC Physical Function subscale		WOMAC Pain subscale		WOMAC Knee Stiffness subscale		WOMAC Total score		PASE		Worst pain in past 24h
		Initial	12M	Initial	12M	Initial	12M	Initial	12M	Initial	12M	Initial	12M
Progressors	136	12	12	4	4	3	2	19	18	138	184	4	4
	130	10	5	3	3	1	0	14	8	347	295	4	3
	149	29	5	4	1	6	4	39	10	181	174	4	4
	142	10	8	0	3	3	0	13	11	109	120	1	2
	148	12	5	3	2	2	0	17	7	202	211	2	1
	145	2	0	1	0	2	2	5	2	104	94	1	1
Non-progressors	150	12	4	1	1	1	0	14	5	78	138	2	2
	151	3	3	3	0	1	1	7	4	124	31	1	1
	135	16	13	5	6	2	3	23	22	34	267	3	5
	138	8	5	1	2	2	3	11	10	123	166	2	3
	153	11	13	4	3	3	2	18	18	115	140	3	5
	147	21	9	6	2	3	3	30	14	155	192	8	3
	131	12	36	3	10	1	5	16	51	77	116	4	5
Median Values by Group	Progressors	11	5	3	3	3	1	16	9	160	179	3	3
	Non-progressors	12	9	3	2	2	3	16	14	115	140	3	3

Abbreviations: WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index; PASE, Physical Activity Scale for the Elderly; 12M, 12 month follow-up visit.

^*Ranges for the WOMAC: 0–68 physical function subscale, 0–20 pain subscale, 0–8 stiffness subscale, 0–96 total score. Higher values indicate greater functional deficits, pain and stiffness. Range for PASE: 0 to greater than 400 with higher scores indicating increased physical activity