Table 3: Cross-Tabulations of the Percent of Study Subjects with Total Knee Replacements in Relation to Quintiles of BMI and HOA Severity (Percent)

BMI (Quintiles)	HOAscore
	0 (n=1611)	1 (n=1170)	2 (n=1020)	3 (n=696)	4+ (n=673)	Total %
1 (<23.5)	1.1	1.0	1.4	3.4	1.6	1.5
2 (23.5-25.6)	1.9	1.3	4.3	3.2	6.2	3.0
3 (25.6-27.7)	2.9	1.9	2.8	5.6	13.1	4.3
4 (27.7-30.3)	3.2	3.1	5.8	4.3	11.4	4.7
5 (>30.3)	6.8	5.9	7.0	13.2	13.4	8.0
Total%	3.3	2.8	4.2	5.7	8.0