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Table 4 Spearman’s Correlations Between Baseline Patient-Rated Outcomes and Longitudinal Biomarker Changes in Adolescents a

From: Differences in biomarkers of cartilage matrix turnover and their changes over 2 years in adolescent and adult volleyball athletes

   IKDC SF-36 PCS
CILP r 0.307 −0.212
P-value 0.388 0.556
COMP r −0.587 0.127
P-value 0.074 0.726
sC2C r −0.498 −0.236
P-value 0.143 0.511
CPII r −0.662 −0.248
P-value 0.037* 0.489
C2C-HUSA r −0.027 0.248
P-value 0.940 0.489
CTX-II r −0.464 −0.018
P-value 0.176 0.960
  1. *Statistically significant difference (P < 0.05)
  2. a N = 10 for all correlation analyses due to one adolescent male and five adolescent females missing baseline serum samples, and one adolescent male missing a follow-up serum sample