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Table 3 Correlations between CTX-II a and isokinetic muscle strength (IMS) at baseline, follow-up and change from baseline to follow-up

From: Relationship between CTX-II and patient characteristics, patient-reported outcome, muscle strength, and rehabilitation in patients with a focal cartilage lesion of the knee: a prospective exploratory cohort study of 48 patients

  Baseline CTX-II vs. baseline IMS (n = 48) Follow-up CTX-II vs. follow-up IMS (n = 44) ΔbCTX-II vs. ΔbIMS (n = 44)
  rc pd rc pd rc pd
Quadriceps, injured limb -0.297 0.040 -0.081 ns -0.054 ns
Quadriceps, %e -0.299 0.039 0.069 ns -0.012 ns
Hamstrings, injured limb -0.176 ns -0.045 ns 0.150 ns
Hamstrings, %e -0.148 ns -0.003 ns 0.069 ns
  1. aLog transformed values; bΔ, change from baseline to follow-up; cr, Pearson correlation coefficient; dp, level of significance; e%, isokinetic muscle strength injured limb in percentage of isokinetic muscle strength uninjured limb; ns, not significant.