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Table 2 Level of significance (P values) in signal intensity of plug cartilage

From: Acoustic stiffness and change in plug cartilage over time after autologous osteochondral grafting: correlation between ultrasound signal intensity and histological score in a rabbit model

  24 weeks 12 weeks 8 weeks 4 weeks 2 weeks
Day 0 P < 0.001 P < 0.001 P < 0.001 P < 0.001 P < 0.001
2 weeks P < 0.001 P < 0.05 P < 0.05 NS -
4 weeks P < 0.001 P < 0.001 P < 0.001 - -
8 weeks NS NS - - -
12 weeks NS - - - -
  1. The P value was not significant (NS) between weeks 2 and 4, or among weeks 8, 12 and 24. Values for signal intensity are presented in Fig. 7a.