Table 3. Association and percentage improvement of WOMAC score stratified by Kellgren-Lawrence grading of knee osteoarthritis severity of study population.
1. One-way ANOVA was applied. P-value <0.05 was considered as statistically significant. 2. A paired "t" test was applied. P-value of <0.05 was considered as statistically significant.
WOMAC: Western Ontario and McMaster Universities Arthritis, ANOVA: analysis of variance
| Kellgren-Lawrence Grade | WOMAC score | |||
| Baseline (Mean±S.D.) | Six weeks (Mean±S.D.) | Three months (Mean±S.D.) | Six months (Mean±S.D.) | |
| Grade 1 (n = 35) | 81.11±2.79 | 71.06±3.88 | 65.83±1.70 | 61.66±1.34 |
| Grade 2 (n = 29) | 80.97±2.82 | 71.62±3.48 | 66.03±0.94 | 61.62±1.08 |
| Grade 3 (n = 17) | 81.41±2.03 | 75.59±1.27 | 74.06±1.39 | 66.88±2.17 |
| Grade 4 (n = 19) | 80.79±2.09 | 76.05±1.43 | 73.53±1.54 | 66.84±2.24 |
| p-value1 | 0.900 | <0.001* | <0.001* | <0.001* |
| Grade 1- Percentage improvement | -12.39% | -18.84% | -23.98% | |
| Grade 2- Percentage improvement | -11.55% | -18.45% | -23.98% | |
| Grade 3- Percentage improvement | -7.15% | -9.03% | -17.85% | |
| Grade 4- Percentage improvement | -5.87% | -8.99% | -17.27% | |
| p-value2 | <0.0001* | <0.0001* | <0.0001* | |