Table 10.

Comparison of Rib Insertion Width

Variable	Measurement	Minimum	Maximum	Mean	SD	F	P
Rib spacing	N10*	7.06	9.98	8.57	0.85
	N11†	9.07	12.95	10.99	1.13
	N12‡	4.05	5.98	4.96	0.55	997.38	0.0001

*

†

^‡Applying analysis of variance/Bonferroni mean differences.

F, test variation.