Table 2. Description of the scales according to groups and times assessed.

		1x6mL					3x2mL
Variable	Time	Mean	SD	CI (95%)		N	Mean	SD	CI (95%)		N
				Lower	Upper				Lower	Upper
IKDC	Pre	36.68	15.05	32.6	40.7	53	33.58	12.32	30.2	36.9	52
	1 month	39.54	14.72	35.4	43.7	48	41.35	13.88	37.4	45.3	48
	3 months	36.18	12.03	32.8	39.5	49	37.75	14.29	33.7	41.8	47
WOMAC	Pre	43.83	16.30	39.4	48.2	53	45.71	16.84	41.1	50.3	52
	1 month	42.17	17.08	37.3	47.0	48	34.73	16.43	30.1	39.4	48
	3 months	45.59	14.93	41.4	49.8	49	39.53	18.77	34.2	44.9	47
WOMAC (Pain)	Pre	8.36	3.78	7.3	9.4	53	8.90	3.08	8.1	9.7	52
	1 month	8.44	3.41	7.5	9.4	48	6.69	3.35	5.7	7.6	48
	3 months	9.00	3.51	8.0	10.0	49	7.91	3.91	6.8	9.0	47
VAS	Pre	53.43	21.07	47.8	59.1	53	60.25	20.12	54.8	65.7	52
	1 month	48.43	22.66	42.0	54.8	48	40.30	28.18	32.3	48.3	48
	3 months	56.02	21.86	49.9	62.1	49	52.73	22.82	46.2	59.3	47
Lequesne	Pre	12.15	3.54	11.2	13.1	53	11.93	3.61	11.0	12.9	52
	1 month	10.68	3.89	9.6	11.8	48	10.37	4.35	9.1	11.6	48
	3 months	11.99	3.83	10.9	13.1	49	11.40	4.37	10.2	12.7	47
PCS	Pre	32.93	6.63	31.1	34.7	53	32.35	7.76	30.2	34.5	52
	1 month	36.10	8.43	33.7	38.5	48	35.03	8.00	32.8	37.3	48
	3 months	33.88	5.61	32.3	35.5	48	34.18	8.40	31.8	36.6	47
MCS	Pre	46,30	10,85	43,4	49,2	53	48,23	12,71	44,8	51,7	52
	1 month	45,06	11,93	41,7	48,4	48	47,02	13,89	43,1	50,9	48
	3 months	47,35	11,72	44,0	50,7	48	46,72	11,03	43,6	49,9	47