Table 1 Comparison of baseline characteristics among study groups
Variables | Ozone therapy 40 µg/mL (n = 20) | Ozon therapy 20 µg/mL (n = 19) | Control group Oxygen (n = 20) | p-value | |
|---|---|---|---|---|---|
Quantitative variables | Mean (SD) | Mean (SD) | Mean (SD) | Â | |
Age (year) | 59.42(9.93) | 61.11 (11.05) | 59.68 (8.71) | 0.850 | |
BMI (kg/m2) | 26.07 (4.01) | 26.93 (2.74) | 26.80 (4.84) | 0.790 | |
Osteoarthritis duration (year) | 7.18 (5.82) | 4.75 (4.36) | 2.63 (1.28) | 0.070 | |
Qualitative variables | Frequency (percentage) | Frequency (percentage) | Frequency (percentage) | Â | |
Gender | Male | 7 (31.80%) | 6 (27.30%) | 9 (40.90%) | 0.664 |
Female | 13 (35.10%) | 13 (35.10%) | 11 (29.70%) | ||
Involved knee | Right | 11 (34.40%) | 10 (31.30%) | 11 (34.40%) | 0.986 |
Left | 9 (33.30%) | 9 (33.30%) | 9 (33.30%) | ||
K-L radiological stage | Grade II | 11 (32.35%) | 12 (35.29%) | 11 (32.35%) | 0.100 |
Grade III | 9 (36.00%) | 7 (28.00%) | 9 (363.00%) | ||