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Table 2 Demographics and baseline characteristics by treatment group

From: Safety and performance of Hydros and Hydros-TA for knee osteoarthritis: a prospective, multicenter, randomized, double-blind feasibility trial

Category Hydros n = 32 Hydros TA n = 34 Synvisc-One n = 32
Age in years, mean (SD) 59 (12) 61 (11) 59 (12)
Gender, n (%)    
  Male 12 (38) 14 (41) 16 (50)
  Female 20 (63) 20 (59) 16 (50)
Race, n (%)    
  Caucasian 23 (72) 28 (82) 23 (72)
  Non-Caucasian 9 (28) 6 (18) 9 (28)
Body Mass Index in kg/m 2 , mean (SD) 29.8 (4.1) 29.0 (4.1) 29.0 (3.8)
  Kellgren-Lawrence Grade for Treatment Knee, n (%)    
  Grade 2 18 (56) 22 (65) 18 (56)
  Grade 3 14 (44) 12 (35) 14 (44)
  Pre-Treatment WOMAC score in mm, mean (SD)    
  Treatment Knee 68 (9) 69 (11) 66 (12)
  Non-treatment Knee 13 (8) 12 (9) 12 (8)
Duration of Symptoms - Pre-Treatment in Treatment Knee in months, mean (SD) 64 (59) 74 (80) 69 (56)
  1. Abbreviations: WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.