Table 2.

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

	Normal weight	Overweight	Obese class I & II	Obese class III	P 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±8.31	69.00±8.03	66.84±9.28	61.42±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 compartment					0.093
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.