Efficacy of stromal vascular fraction for knee osteoarthritis: A prospective, single-centre, non-randomized study with 2 years follow-up

Table 2 Visual analog score in various time-points

Time-point	Group A (n = 23)	Group B (n = 24)	Standard error	95%CI	t	P value
Pre-procedure	7.7 ± 1.1	7.8 ± 0.8	0.272	-0.44-0.64	0.37	0.71
1 month Follow-up	7.0 ± 1.8	7.2 ± 1.0	0.41	-0.62-1.02	0.48	0.561
3 months Follow-up	6.5 ± 1.8	7.6 ± 1.6	0.48	0.13-2.06	2.28	0.03
6 months Follow-up	4.3 ± 1.4	6.8 ± 1.2	0.36	1.75-3.24	6.78	< 0.001
12 months Follow-up	2.3 ± 0.20	6.1 ± 0.80	0.16	3.47-4.13	23.04	< 0.001
24 months Follow-up	2.4 ± 0.88	6.2 ± 1.1	0.27	3.25-4.34	13.97	< 0.001

Independent t-test.