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Table 1 Clinical and demographic characteristics of the patients in the Re-Join® and HA groups (n = 52)

From: Treatment of knee osteoarthritis with intra-articular injection of autologous adipose-derived mesenchymal progenitor cells: a prospective, randomized, double-blind, active-controlled, phase IIb clinical trial

  Re-Join® HA P value
No. of patients 26 26  
Age, mean (SD) 55.03 (9.19) 59.64 (5.97) 0.0375
Sex, no. (%)
 Male 3 (11.54) 3 (11.54) 1.0000
 Female 23 (88.46) 23 (88.46)  
Height, mean (SD),cm 161.35 (6.43) 162.46 (5.66) 0.5609
Weight, mean (SD), kg 63.46 (10.69) 62.81 (9.44) 0.8172
Body mass index, mean (SD) 24.27 (3.04) 24.26 (2.59) 0.9883
Symptom duration, mean (SD), month 53.62 (41.24) 63.81 (34.14) 0.2061
Left knee VAS score, mean (SD) 5.27(2.27) 4.92(2.56) 0.6078
Right knee VAS score, mean (SD) 5.50(2.48) 4.96(2.46) 0.4355
Kellgren–Lawrence grade, No. (%)* Left Right Left Right Left Right
0.825 0.825
 Grade 0 0 (0.00) 0 (0.00) 0 (0.00) 0 (0.00)   
 Grade 1 1 (3.85) 1 (3.85) 2 (7.69) 2 (7.69)   
 Grade 2 9 (34.62) 9 (34.62) 8 (30.77) 8 (30.77)   
 Grade 3 16 (61.54) 16 (61.54) 16(61.54) 16 (61.54)   
 Grade 4 0 (0.00) 0 (0.00) 0 (0.00) 0 (0.00)   
Cartilage volume by MRI, log(mm3) 9.54 (0.19) 9.54 (0.18) 9.62 (0.19) 9.59 (0.19) Left Right
0.124 0.347
Previous treatment, No. (%)1
 Yes 19 (73.08) 14 (53.85) 0.1539
 No 7 (26.92) 12 (46.15)  
Concomitant diseases, No. (%)1
 Yes 2 (7.69) 6 (23.08) 0.1279
 No 24 (92.31) 20 (76.92)  
  1. *Statistics were calculated by ANOVA or chi-square test