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Table 1 Demographics and patient characteristics at screening or baseline

From: Efficacy and safety of a single intra-articular injection of 6 ml Hylan G-F 20 compared to placebo in Chinese patients with symptomatic knee osteoarthritis

  Placebo (N = 220) Single 6 ml Hylan G-F 20 injection (N = 220) All (N = 440)
Gender [n (%)]
 Male 48 (21.8) 50 (22.7) 98 (22.3)
 Female 172 (78.2) 170 (77.3) 342 (77.7)
Age (year)
 Mean (SD) 61.6 (7.8) 61.5 (7.9) 61.5 (7.9)
 Median 63.0 62.0 63.0
 Min; Max 42; 79 40; 79 40; 79
Age group [n (%)]
 < =60 79 (35.9) 92 (41.8) 171 (38.9)
 > 60 141 (64.1) 128 (58.2) 269 (61.1)
Race [n (%)]
 Asian 220 (100) 220 (100) 440 (100)
Ethnicity [n (%)]
 Not Hispanic or Latino 220 (100) 220 (100) 440 (100)
Baseline BMI (kg/m2)
 Mean (SD) 25.39 (3.29) 25.57 (3.07) 25.48 (3.18)
 Median 25.39 25.23 25.28
 Min; Max 16.5; 36.2 18.3; 34.4 16.5; 36.2
Grade according to modified Kellgren-lawrence numerical [n (%)]
 0 0 0 0
 I 24 (10.9) 31 (14.1) 55 (12.5)
 II 116 (52.7) 105 (47.7) 221 (50.2)
 III 80 (36.4) 84 (38.2) 164 (37.3)
 IV 0 0 0
WOMAC A1 score (0–10)
 Number 220 220 440
  Mean (SD) 5.2 (1.3) 5.3 (1.2) 5.3 (1.3)
  1. SD standard deviation