Table 7.

Analysis of biomechanical change in rabbits implanted with polypropylene and ACTM from 24 weeks to 48 weeks.

	Levene's test for equation of variance		T-test for equation of means
	F	P value	Mean difference	SE difference	95% CI	t	P value
Tensile stress (MPa): polypropylene 48 w-24 w	0.178	0.677	1.01	0.321	0.348–1.664	3.131	0.004
Tensile stress (MPa): ACTM 48 w-24 w	0.289	0.595	1.1	0.244	0.597–1.595	4.501	<0.001
Tensile strain (%): polypropylene 48 w-24 w	0.400	0.532	0.111	1.195	−2.336–2.559	0.093	0.926
Tensile strain (%): ACTM 48 w-24 w	1.349	0.255	0.697	2.104	−3.612–5.007	0.331	0.743