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Table 5 Correlations of MRI cartilage thickness measurements at subdivision of femoral and tibial condyles with demographic data and clinical characteristics

From: Ankylosing spondylitis impact on knee cartilage thickness: correlation with demographic data and clinical characteristics

 

R ant

R middle

R post

L ant

L middle

L post

 

(a) Medial femoral compartment

Age

 − 0.34 (0.04*)

 − 0.24 (0.25)

 − 0.41 (0.04*)

 − 0.41 (0.04*)

 − 0.12 (0.57)

 − 0.47 (0.01*)

BASMI

0.16 (0.44)

0.33 (0.11)

 − 0.52 (< 0.001*)

0.14 (0.51)

0.09 (0.65)

 − 0.29 (0.05)

BASRI

0.13 (0.54)

 − 0.41 (0.04*)

 − 0.46 (0.02*)

0.08 (0.71)

0.10 (0.63)

 − 0.09 (0.65)

ASDAS ESR

 − 0.48 (0.01*)

 − 0.36 (0.05)

0.20 (0.33)

 − 0.50 (0.01*)

 − 0.13 (0.53)

 − 0.40 (0.05)

 

(b) Lateral femoral compartment

ASDAS CRP

 − 0.30 (0.04*)

0.19 (0.36)

0.48 (0.21)

 − 0.33 (0.04*)

0.20 (0.35)

0.49 (0.73)

ASDAS ESR

 − 0.50 (0.02*)

 − 0.16 (0.42)

0.48 (0.09)

 − 0.53 (0.01*)

 − 0.16 (0.45)

0.51 (0.52)

 

R middle

R post

L middle

L post

 

(c) Medial tibial compartment

   

BASFI

 − 0.48 (0.01*)

0.26 (0.21)

 − 0.48 (0.01*)

0.26 (0.21)

BASMI

0.29 (0.15)

 − 0.45 (0.02*)

0.29 (0.15)

 − 0.45 (0.02*)

BASRI

 − 0.31 (0.04*)

0.21 (0.32)

0.31 (0.05)

0.21 (0.32)

 

(d) Lateral tibial compartment

   

Disease duration

 − 0.35 (0.02*)

 − 0.09 (0.66)

 − 0.35 (0.05)

 − 0.09 (0.66)

  1. Data presented as r (P)
  2. R = right, L = left, ant = anterior, post = posterior, BASMI = Bath Ankylosing Spondylitis Metrology Index, BASRI = Bath Ankylosing Spondylitis Radiographic Index, ASDAS ESR = Ankylosing Spondylitis Disease Activity Score-erythrocyte sedimentation rate, ASDAS CRP = Ankylosing Spondylitis Disease Activity Score-C-reactive protein, and BASFI = Bath Ankylosing Spondylitis Functional Index, *P < 0.05