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Table 1 Baseline characteristics and responder status of study population

From: Accuracy of injection and short-term pain relief following intra-articular corticosteroid injection in knee osteoarthritis – an observational study

Characteristics n = 105
Age [years] [mean (SD)] 63.1 (11.3)
Female [n (%)] 62 (59%)
BMI [mean (SD)] 30.8 (5.5)
Previous injection [n (%)] 60 (57%)
Baseline WOMAC Pain [mean(SD)] 266 (95.5)
US effusion depth [mm] [Mean (SD)] 3.74 (2.27)
PD grade [median (IQR)] 0 (0,1)
Osteophyte grade [median (IQR)] 2 (1, 3)
JSN grade [median (IQR)] 2 (1,2)
hs CRP [mg/L] [median (IQR)] 4.4 (1.7,7.1)
Positive US arthrogram [n (%)] 74 (70.5%)
Responders at 3 weeks [n (%)] 63 (60.6%)
Responder at 9 weeks [n (%)] 43 (45.7%)
  1. Abbreviations: BMI body mass index, PD power Doppler, JSN joint space narrowing, hsCRP high-sensitivity CRP, US ultrasound