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Table 1 Correlations between baseline characteristics and CTX-II a at baseline, at 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

  CTX-II at baseline CTX-II at follow-up ΔbCTX-II
Baseline characteristic n rc pd n rc pd n rc pd
Age 48 -0.566 0.001 44 -0.694 <0.001 44 -0.199 ns
Gender 48 0.205 ns 44 0.187 ns 44 -0.069 ns
Body Mass Index 48 -0.247 ns 44 -0.151 ns 44 0.201 ns
Duration of symptoms 48 -0.088 ns 44 -0.086 ns 44 0.016 ns
Previous knee surgery 48 0.060 ns 44 -0.018 ns 44 0.005 ns
Size of cartilage lesion 46 0.100 ns 43 0.065 ns 43 -0.137 ns
  1. aLog transformed values; bΔ, change from baseline to follow-up; cr, Pearson correlation coefficient; dp, level of significance; ns, not significant.