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Table 4 L* a* b* color change of the plug cartilage in groups H and F

From: Spectrocolorimetric assessment of cartilage plugs after autologous osteochondral grafting: correlations between color indices and histological findings in a rabbit model

Parameter Group H Group F P valuea
L* value 57.5 ± 2.4b 61.2 ± 2.3 P = 0.02
L* value/control 62.3 ± 2.0 62.9 ± 2.3  
a* value 3.7 ± 0.7b 2.4 ± 0.8 P = 0.007
a* value/control 2.5 ± 0.8 2.0 ± 1.0  
b* value 0.3 ± 1.8b -1.1 ± 1.7b NS
b* value/control 6.2 ± 1.5 6.8 ± 1.4  
  1. Data are mean ± standard deviation. aP values based on Mann-Whitney U-test, group H versus F, 12 weeks. bP < 0.05 versus control. NS, not significant.