Table 1

Statistical comparison of severity

Category 1Category 2Severity p value (at 5% level)Treatment p value (at 5% level)
CrackBreak<0.0001<0.0001
CrackFracture<0.00010.0017
CrackHairline0.3663<0.0001
CrackGreenstick<0.0001<0.0001
BreakFracture<0.00010.0032
BreakHairline<0.0001<0.0001
BreakGreenstick<0.0001<0.0001
FractureHairline<0.0001<0.0001
FractureGreenstick0.252<0.0001
HairlineGreenstick<0.00010.0831
  • Most severe: break, fracture, greenstick fracture, crack. Least severe: hairline fracture.