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Table 3 Multivariable analyses of differences between offspring and controls in changes in cartilage measures

From: Genetic mechanisms of knee osteoarthritis: a population-based longitudinal study

Outcome factor

Univariable analysis

β and 95% confidence interval

  

Cartilagea

Cartilagea and BMI

Knee pain

Bone sizeb

Other outcomec

All factors

Differences in annual change in cartilage volume

   Medial tibial (%)

-1.06 (-2.01,-0.10)

-0.77 (-1.61,+0.08)

-0.62 (-1.46,+0.23)

-0.89 (-1.88,+0.10)

-0.64 (-1.60,+0.31)

-0.71 (-1.57,+0.15)

-0.27 (-1.14,+0.60)

   Lateral tibial (%)

-0.79 (-1.60,-0.00)

-0.55 (-1.32,+0.21)

-0.44 (-1.22,+0.33)

-0.55 (-1.43,+0.33)

-0.52 (-1.33,+0.29)

-0.75 (-1.59,+0.07)

-0.32 (-1.21,+0.56)

   Patellar (%)

-0.98 (-1.83,-0.12)

-0.96 (-1.78,-0.15)

-0.74 (-1.56,+0.09)

-0.85 (-1.76,+0.06)

-1.01 (-1.87,-0.17)

-0.75 (-1.56,+0.06)

-0.55 (-1.37,+0.26)

   Total (%)

-0.86 (-1.54,-0.17)

-0.71 (-1.33,-0.10)

-0.54 (-1.17,+0.09)

-0.69 (-1.40,+0.02)

-0.63 (-1.34,+0.07)

-0.60 (-1.23,+0.04)

-0.28 (-0.94,+0.38)

Differences in annual change in cartilage defects

   Medial (number)

0.16 (0.00,0.32)

0.22 (0.07,0.38)

0.19 (0.05,0.34)

0.13 (-0.04,+0.31)

0.11 (-0.06,+0.27)

0.09 (-0.05,+0.23)

0.11 (-0.04,+0.26)

   Patella (number)

0.09 (-0.05,+0.24)

0.14 (0.00,0.29)

0.12 (-0.03,+0.26)

0.09 (-0.06,+0.25)

0.08 (-0.06,+0.23)

0.05 (-0.09,+0.20)

0.07 (-0.07,+0.22)

   Total (number)

0.26 (-0.06,+0.59)

0.41 (0.06,0.76)

0.32 (-0.01,+0.66)

0.23 (-0.12,+0.59)

0.16 (-0.17,+0.48)

0.11 (-0.19,+0.40)

0.19 (-0.13,+0.50)

  1. Bold denotes statistical significance. aAdjusted for differences at baseline in cartilage volume (analyses of differences in change in cartilage volume) or in cartilage defects (analyses of differences in change in cartilage defects); badjusted for differences at baseline in bone size at this site; cadjusted for differences at baseline in annual change in cartilage defects (analyses of differences in change in cartilage volume) or in annual change in cartilage volume (analyses of differences in change in cartilage defects).