Table 2.

Gaussian fit parameters for neurite orientation. All values are mean ± S.D.

	50-μm	100-μm	150-μm	200-μm
Mean (μ)
Round	5.8±2.8	0.2±7.6	−7.6±9.4	−3.2±8.6
Square	1.4±3.8*	0.4±4.9	2.1±5.8	1.2±10.3
Grooved	−2.1±2.3*	0.1±2.	0.1±1.0	−1.4±4.3
Variance (σ)
Round	5.8±2.8	6.1±7.6	9.4±7.6	8.3±3.8#
Square	3.3±2.4*	3.8±3.2	3.8±4.8	8.1±6.4#
Grooved	2.2±2.2*	2.0±1.5	0.9±0.4*	3.5±2.8*

^*Statistically significant from Round fiber of same dimension (p<0.05; one-way ANOVA)

^#Statistically significant from 50-μm of same geometry (p<0.05; one-way ANOVA)