References
Knee injury, Osteoarthritis, pain
SECONDARY, OSTEOARTHRITIS
PRISMA Flow Diagram.Intra-group analysis of the WOMAC LK 3.1 pain subscale score (Baseline characteristics of study participants.Continuous variables are expressed as means ± standard deviations; categorical data are expressed as counts and percentages. Abbreviations: OT: oxygen–ozone therapy; HA: hyaluronic acid; BMI: body mass index.Intra-group differences in outcome measures on patients who completed follow-up (per-protocol analysis).Continuous variables are expressed as means ± standard deviations; categorical data are expressed as counts (percentages). Abbreviations: OT: oxygen–ozone therapy; HA: hyaluronic acid; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; KOOS: Knee injury and Osteoarthritis Outcome Score; NRS: Numeric Rating Scale.Between-group differences in the primary outcome.Continuous variables are expressed as means ± standard deviations; categorical data are expressed as counts (percentages). Abbreviations: OT: oxygen–ozone therapy; HA: hyaluronic acid; BMI: body mass index; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.Between-group differences in the secondary outcomes.Continuous variables are expressed as means ± standard deviations; categorical data are expressed as counts (percentages). Abbreviations: OT: oxygen–ozone therapy; HA: hyaluronic acid; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; KOOS: Knee injury and Osteoarthritis Outcome Score; NRS: Numeric Rating Scale.