Table 5.

Comparison of five outcome measurements between the two groups

Outcome	Fast rate (N=44)	Slow rate (N=44)	p-valuea)
Visual Analog Scale
Pre-injection	7.4±1.9	7.7±1.8	0.421
2 wk	3.8±2.6	3.6±2.6	0.770
6 wk	3.9±2.8	4.7±3.3	0.240
12 wk	4.6±3.1	5.1±3.2	0.490
Roland 5-point pain scale
Pre-injection	3.6±1.1	3.7±1.1	0.623
2 wk	1.5±1.2	1.4±0.9	0.093
6 wk	1.6±1.2	2.1±1.6	0.073
12 wk	1.9±1.4	2.1±1.4	0.595
Standing tolerance
Pre-injection	0.5±0.8	0.4±0.7	0.591
2 wk	2.1±1.6	1.5±1.5	0.057
6 wk	2.1±1.6	1.6±1.7	0.152
12 wk	1.8±1.6	1.4±1.5	0.252
Walking tolerance
Pre-injection	1.1±1.1	1.0±1.1	0.780
2 wk	2.9±1.3	2.8±1.3	0.747
6 wk	3.0±1.3	2.4±1.6	0.061
12 wk	2.7±1.4	2.5±1.5	0.720
Patients satisfaction
Pre-injection	0.3±0.5	0.4±0.5	0.514
2 wk	2.9±0.8	3.2±0.8	0.090
6 wk	2.7±1.1	2.4±1.3	0.297
12 wk	2.4±1.3	2.3±1.3	0.674

Values are presented as mean±standard deviation.

^a)By unpaired Student t-test.