Unraveling the Determinants of Protrusion Formation

Table 1

Dimensioned and raw variables whose values are correlated with factor 7 values^a.

Variable	Mean (μm)^b	Standard deviation (μm)^b	PCC^c	𝑃 value
Dimensioned variables
Area	4.56	26.07	−0.085	0.015
Perimeter	6.90	9.60	−0.090	0.009
Mean radius	0.72	0.94	−0.090	0.001
Equivalent radius	0.72	0.95	−0.091	0.009
Width	1.86	2.67	−0.088	0.011
Height	1.70	2.18	−0.089	0.010
Fiber length	2.77	4.10	−0.087	0.013
Fiber breadth	0.67	0.92	−0.089	0.011
Orientation	−0.71	47.00	−0.080	0.023
Raw (nondimensioned) variables
Centroid Y	62.33	115.24	−0.089	0.011
Centroid X	41.89	73.35	−0.104	0.003

^aNumber of samples = 820; number of cells = 37.
^bUnits are μm² for area and degrees for orientation.
^cPCC: Pearson’s correlation coefficient.