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Table 1 List of relevant baseline characteristics

From: Relevant baseline characteristics for describing patients with knee osteoarthritis: results from a Delphi survey

  Outcome
  Pain Function Structure
General information  
Age Age Age
  Gender Gender Gender
Activity level in daily life Activity level in daily life
Psychosocial factors  
  Pain catastrophizing   
  Anxiety and Fear   
  Depression Depression  
  Quality of life* Quality of life*  
Information from history  
    Primary or secondary osteoarthritis
Duration since onset of symptoms indicating knee osteoarthritis Duration since onset of symptoms indicating knee osteoarthritis Duration since onset of symptoms indicating knee osteoarthritis
  Intermittent or constant pain Intermittent or constant pain  
  Pain remained constant or varied in the last week   
  Average daily pain during the last week Average daily pain during the last week  
   Walking aid needed (e.g., cane/walker)  
  Global knee pain** Global knee pain** Global knee pain**
  Waking up with pain   
  Weight bearing pain Weight bearing pain  
  Pain at rest   
  Pain when going down stairs   
  Function of knee*** Function of knee*** Function of knee***
  Pain or reduced function in other joints (hip/spine) Pain or reduced function in other joints (hip/spine)  
    Previous history of knee trauma
    Previous history of meniscal tear or meniscectomy
    Previous history of ACL§ rupture
Previous surgical intervention
  Daily dose of pain killers (NSAIDs)   
Information from physical examination  
  BMI BMI BMI
Physical functional ability; e.g., performance tests of baseline physical ability (e.g., the Timed Up and Go test or a 6-min walking test)
Lab results  
Imaging results  
    Kellgren-Lawrence grading (weight bearing)
    Bone marrow lesions
    Joint space width
    Synovitis (US§§, MRI§§§)
    Effusion (US, MRI)
    Involved joint compartment (i.e., patellofemoral vs. tibiofemoral vs. combined etc.)
    Meniscus tear
    Meniscus extrusion
ACL tear
    Cartilage abnormalities (MRI)
    Malalignment (hip-knee-ankle mechanical axis)
    Cartilage volume/thickness in the compartment of interest (MRI)
  1. Legend: List of baseline characteristics with a median rating of importance ≥7 according to three different outcome categories, based on the opinions of an expert panel.
  2. Abbreviations: *e.g., SF-36; **e.g., VAS, WOMAC; ***e.g., WOMAC, Lequesne; § Anterior crucial ligament; §§ Ultrasound; §§§ Magnetic Resonance Imaging.