Table 4.

Percentages of the femora that need to be downsized due to clinically significant overhang (>3 mm) for each ethnicity and design family

% Femora needing downline	Design family						Mean ± SD
	A	B	C	D	E	F
Caucasian	0.0	0.0	3.7	20.7	7.4	20.0	8.6 ± 9.5
Indian	0.0	1.4	2.7	14.9	2.7	12.2	5.7 ± 6.3
Korean	0.0	0.0	2.9	26.5	4.4	19.1	8.8 ± 11.2
Mean ± SD	0.0 ± 0.0a	0.5 ± 0.8a	3.1 ± 0.5b	20.7 ± 5.8c	4.8 ± 2.4b	17.1 ± 4.3c
Pooled	0.0	0.4	3.2	20.5	5.4	17.7

^abcIndicate statistical differences