Table 2

Association between baseline IPFP and changes in knee pain

 Multivariable*
β (95% CI)p Value
Men
 Total WOMAC knee pain−0.17 (−0.67 to 0.32)0.490
 Pain walking on flat surface0.02 (−0.09 to 0.12)0.741
 Pain going up/down stairs−0.01 (−0.17 to 0.15)0.912
 Pain in bed−0.08 (−0.22 to 0.06)0.273
 Pain when sitting/lying−0.07 (−0.19 to 0.04)0.204
 Pain when standing−0.05 (−0.16 to 0.06)0.385
Women
 Total WOMAC knee pain−0.86 (−1.56 to −0.17)0.015
 Pain walking on flat surface−0.11 (−0.26 to 0.05)0.164
 Pain going up/down stairs−0.11 (−0.32 to 0.11)0.337
 Pain in bed−0.29 (−0.49 to −0.09)0.005
 Pain when sitting/lying−0.18 (−0.34 to −0.01)0.033
 Pain when standing−0.24 (−0.39 to −0.08)0.002
  • Dependent variables: changes in knee pain; independent variable: IPFP maximal area (per cm2).

  • *Adjusted for age, weight and height.

  • IPFP, infrapatellar fat pad; WOMAC, Western Ontario McMaster Osteoarthritis Index.