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Table 3 Means of the last follow-up scores of clinical scales adjusted for baseline score of the respective scale, follow-up time, age, BMI, gender, and severity grade (NC = nucleated cells, SE = standard error, LEFS = lower extremity functional scale, NPS = numeric pain scale, IKDC = international knee documentation committee scale, improvement rating = percentage improvement rating scale)

From: A dose response analysis of a specific bone marrow concentrate treatment protocol for knee osteoarthritis

  NC ≤ 4 × 108 cells NC > 4 × 108 cells  
  N Mean SE N Mean SE P-value
NPS 67 3.2 0.3 49 1.6 0.3 <.001
LEFS 57 53.4 2.4 37 58.7 2.7 .114
IKDC 25 68.3 3.7 22 68.4 3.9 .989
Improvement rating 137 46.4 3.7 103 50.9 4.3 .372