Table 2

Demographic and clinical characteristics of the subset of patients undergoing total knee replacement

Normal weightOverweightObese class I & IIObese class IIIP value
(n=26)(n=19)(n=31)(n=12)
Women (N/%)8 (30.8)12 (63.2)15 (48.4)8 (66.7)0.413
Age/year*72.46±8.3169.00±8.0366.84±9.2861.42±6.49 0.003
X-ray/ K-L†2.5 (2 to 3)2 (1 to 3)2 (2 to 4)2 (2 to 3.75)0.725
Predominant compartment0.093
 Medial (N/%)17 (65.4)18 (94.7)24 (77.4)8 (66.7)
 Lateral (N/%)9 (34.6)1 (5.3)7 (22.6)4 (33.3)
  • The comparisons of continuous parameters were performed using one-way analysis of variance. Comparison of categorical data was performed using Fisher’s exact test.

  • *Values presented as mean±SD.

  • †Value presented as median (25th, 75th percentiles).

  • K-L, Kellgren and Lawrence.