Table 5

Body mass index (BMI)-associated horizontal fissuring in osteochondral interface

UnadjustedP valueAge and sex adjustedP value
Predominant
 Incidence of fissures (OR (95% CI))*1.144 (1.061 to 1.233)<0.0011.147 (1.055 to 1.246)0.001
  Length of fissures (µm) (R)†0.403<0.0010.417<0.001
  Area of fissures (mm2) (R)‡0.400<0.0010.391<0.001
Medial
 Incidence of fissures (OR (95% CI))*1.173 (1.081 to 1.273)<0.0011.186 (1.081 to 1.302)<0.001
  Length of fissures (µm) (R)†0.463<0.0010.507<0.001
  Area of fissures (mm2) (R)‡0.467<0.0010.518<0.001
Lateral
 Incidence of fissures (OR (95% CI))*1.086 (1.017 to 1.159)0.0131.078 (1.004 to 1.157)0.038
  Length of fissures (µm) (R)†0.2640.0130.2400.027
  Area of fissures (mm2) (R)‡0.2860.0070.2240.040
  • *Logistic regression between BMI (kg/m2, continuous variable) and incidence of fissures.

  • †Spearman’s rank correlation analysis between BMI (kg/m2) and the length of fissures (µm).

  • ‡Spearman’s rank correlation analysis between BMI (kg/m2) and the area of fissures (mm2).