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Table 2 Demographic and clinical characteristics of study subjects

From: A semiquantitative color Doppler ultrasound scoring system for evaluation of synovitis in joints of patients with blood-induced arthropathy

Study site N Age (range, median) Ankles Imaged Elbows imaged Knees imaged Hemophilia type Baseline FVIII/IX Level* (%) Pettersson score HJHS score (range, median)
1 22 7–17, 13 8 7 7 A:N = 17 0:N = 13; Score 0:N = 1 7–15, 9
        1: N = 4 Scores 1–3:N = 8  
         Scores 4–7:N = 5  
       B:N = 5 0:N = 4 Scores ≥ 8:N = 8  
        1:N = 1   
2 12 8–18, 11.5 4 4 4 A:N = 12 0:N = 5 Score 0:N = 0 3–16, 11.5
        1:N = 7 Scores 1–3:N = 4  
         Scores 4–7:N = 4  
         Scores ≥ 8:N = 4  
3 29 5–17, 13 21 0 8 A:N = 23 0:N = 20 Score 0:N = 14 0–16, 4.5
        1:N = 3 Scores 1–3:N = 4  
       B:N = 3 0:N = 2 Scores 4–7:N = 5  
        1:N = 1 Scores ≥ 8:N = 6  
       vWD type 3:N = 3**    
  1. N, number; FVIII/IX, factors VIII/IX; IU, International Unit; dL, deciliter; HJHS, Hemophilia Joint Health Score
  2. *Baseline FVIII/IX level: 0: < 1 IU/dL (= < 1%, consistent with a diagnosis of severe hemophilia) 1: 1-5 IU/dL ( = 1-5%, consistent with a diagnosis of moderate hemophilia)
  3. **Three patients had vWD