Table 1.
Demographic distribution and comparison of clinical variables in the two groups before treatment
| Group | Patients, n | Age (years) ± SD | Gender (F:M) | BMI (kg/m2) ± SD | WOMAC ± SD | VAS ± SD | OA grade (II:III) |
|---|---|---|---|---|---|---|---|
| Ozone | 67 | 58.1±6.4 | 50:17 (75%:25%) |
26.8±1.95 | 40.8±9.0 | 7.6±2.8 | 37:30 (56%:44%) |
| HA | 74 | 61.1±6.3 | 56:18 (77%:23%) |
28.6±1.65 | 38.5±8.0 | 7.1±3.2 | 40:34 (54%:46%) |
| p-value | – | 0.44 | 0.88 | 0.08 | 0.16 | 0.86 | 0.80 |
Abbreviations: SD, standard deviation; F, female; M, male; BMI, body mass index; WOMAC, Western Ontario and McMaster Universities Arthritis Index; VAS, visual analog scale; OA, osteoarthritis; HA, hyaluronic acid.