Table 1. Number of axons in each Remak bundle.

	Normal	Autograft	Acellular	SC	BDNF	CNTF	NT3
Mean	3.53	3.47	4.52	2.31	1.86	2.81	2.36
SEM	0.397	0.249	0.389	0.192	0.130	0.203	0.161
Variance	12.8	5.5	14.7	3.9	1.5	4.2	4.0
Minimum	1	1	1	1	1	1	1
Maximum	17	11	18	10	7	12	13
1st quartile	1	2	2	1	1	1	1
Median	2	3	3	1	1	2	2
3rd quartile	4.5	4	6	3	2	3	3

Descriptive statistics of the number of unmyelinated axons in Remak bundles, including mean and standard error of mean (SEM), variance and range of data distribution represented by minimum and maximum number of axons, and percentiles distribution, namely first, second (median) and third quartile. There were significant differences between experimental groups in the median number of unmyelinated axons in Remak bundles (p<0.0005), with significantly higher numbers in autografts and acellular grafts than in NT3, SCs and BDNF grafts. Moreover, the number of unmyelinated axons in the latter was also significantly lower than in normal nerves and in CNTF grafts. Further details on statistical analysis provided as Statistical Information S1.