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Table 3 Association (risk ratio and 95% CI) of severe knee injury and knee surgery with knee osteoarthritis among current and retired professional footballers

From: Knee osteoarthritis in professional football is related to severe knee injury and knee surgery

  Current professional footballers Retired professional footballers
Unadjusted Adjusted a Unadjusted Adjusted a
Number of severe knee injuries 1.69 (1.48–1.92) 1.74 (1.50–2.01) 1.62 (1.45–1.80) 1.87 (1.61–2.13)
Number of knee surgeries 1.94 (1.68–2.23) 1.96 (1.66–2.29) 1.54 (1.39–1.70) 1.72 (1.50–1.95)
  1. aAdjusted for age and body mass index (BMI)