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Table 3 Associations of erythrocyte sedimentation rate with muscle strength change in patients with knee osteoarthritis

From: Elevated C-reactive protein is associated with lower increase in knee muscle strength in patients with knee osteoarthritis: a 2-year follow-up study in the Amsterdam Osteoarthritis (AMS-OA) cohort

Independent factors Muscle strength change, N-m/kg
  β P value
ESR (crude)   
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.07 0.34
 Not elevated at baseline and elevated at follow-up -0.05 0.48
 Elevated at both times of assessment -0.11 0.16
ESRa,b
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.06 0.39
 Not elevated at baseline and elevated at follow-up -0.05 0.46
 Elevated at both times of assessment -0.09 0.19
ESRa-c
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.06 0.41
 Not elevated at baseline and elevated at follow-up -0.01 0.95
 Elevated at both times of assessment -0.08 0.26
ESRa-d
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.08 0.28
 Not elevated at baseline and elevated at follow-up 0.01 0.99
 Elevated at both times of assessment -0.08 0.27
ESRa-e
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.09 0.24
 Not elevated at baseline and elevated at follow-up 0.04 0.96
 Elevated at both times of assessment -0.08 0.31
ESRa-f
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.10 0.20
 Not elevated at baseline and elevated at follow-up -0.03 0.76
 Elevated at both times of assessment -0.07 0.35
ESRa-g   
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.10 0.19
 Not elevated at baseline and elevated at follow-up -0.01 0.86
 Elevated at both times of assessment -0.07 0.34
ESRa-h   
 Not elevated at baseline and at follow-up Ref.  
 Elevated at baseline and not elevated at follow-up -0.10 0.17
 Not elevated at baseline and elevated at follow-up -0.02 0.79
 Elevated at both times of assessment -0.07 0.38
  1. This linear regression analysis used muscle strength change as a dependent factor. All the models were adjusted for baseline muscle strength. Additionally, confounders adjusting the model were aage, bgender, ccomorbidities change, dnon-steroidal anti-inflammatory drug change, ebody mass index change, fWestern Ontario and McMaster Universities Osteoarthritis pain change, gKellgren-Lawrence score change, and hphysical activity follow-up. Reduce patients numbers in the multivariate linear regression analyses due to random missing in the outcome measure or selected predictors. ESR, erythrocyte sedimentation rate; Ref., reference.