Table 2

 Factors affecting longitudinal change in tibial cartilage volume in men over two years

VariableUnivariate analysis regression coefficient (95% CI)*p ValueMultivariate analysis† regression coefficient (95% CI)*p Value
*Change in cartilage per unit increase in corresponding variable
†Multivariate analysis with age, BMI, physical activity, baseline tibial cartilage volume, and tibial plateau area in regression equation.
BMI, body mass index; CI, confidence interval.
Age−1.8 (−13.9 to 10.4)0.776.3 (−6.3 to 18.9)0.31
BMI−12.9 (−65.7 to 39.8)0.62−16.3 (−70.5 to 37.9)0.54
Physical activity−6.3 (−84.2 to 71.6)0.87−25.0 (−116.7 to 66.6)0.57
Tibial plateau area0.01 (−0.33 to 0.35)0.960.03 (−0.35 to 0.41)0.85