Table 2.

Mean collagen density at the surface for the caudal site, distal site, and rostral site

age [weeks]	0	2	4	8	12	20	28	36	52	72
ρs [g/ml] caudal	0.22	0.27	0.26*	0.36	0.37	0.45	0.43	0.48	0.49	0.53*
ρs [g/ml] distal	0.25	0.27	0.26*	0.34	0.38	0.46	0.40	0.48	0.47	0.54*
ρs [g/ml] rostral	0.23	0.26	0.30	0.36	0.39	0.48	0.42	0.47	0.48	0.46

Mean collagen density at the surface ρ_s [g/ml] per age for caudal site, distal site and rostral site from the statistical model. The associated standard error is 0.0155 [g/ml]. Stars mark values that are significantly different from the value for the rostral site at that age.