Table 2.
VAS scores of both groups before and after treatment
| Group | Before | 1 week after | 1 month after | 3 months after |
|---|---|---|---|---|
| P group (n=45) | 6.2±1.3 | 5.0±1.2a | 3.1±1.1a | 1.8±0.8a |
| O group (n=46) | 6.5±1.4 | 4.8±1.1a | 1.8±1.1a,b | 0.9±0.5a,b |
Notes: Data are presented as mean ± SD. P group = pharmacological therapy group; O group = ozone therapy group. P<0.05 was considered statistically significant.
a
Repeated-measures ANOVA test, P<0.05.
b
Independent-samples t-test, P<0.05.
Abbreviation: VAS, Visual Analog Scale.