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| Group | Pre | Post | |
|---|---|---|---|
| VAS (point) | CPTG** | 7.2 ± 1.2 | 5.8 ± 1.1 |
| HILTG** | 7.3 ± 0.6 | 3.1 ± 0.7†† | |
| K-WOMAC (point) | CPTG** | 37.8 ± 5.4 | 31.9 ± 6.5 |
| HILTG** | 36.1 ± 8.0 | 17.2 ± 6.2†† |
VAS: visual analog scale, K-WOMAC: Korean Western Ontario and McMaster Universities Osteoarthritis Index, CPTG: Conservative physical therapy group, LTG: Laser therapy group, *Paired t-test, †Independent sample t-tests, **, ††p<0.01, *, †p<0.05
