Unraveling the Determinants of Protrusion Formation

Table 2

Dimensioned and raw variables whose values are correlated with factor 4, 5, or 16 values^a.

Variable	Dimensions		Factor 4		Factor 5		Factor 16
	Mean; (μm)^b	Standard deviation; (μm)^b	PCC	𝑃 value	PCC	𝑃 value	PCC	𝑃 value
Area	4.28	31.67	0.077	0.0003	0.102	<0.000	−0.034	0.116
Perimeter	7.63	10.32	0.108	<0.000	0.122	<0.000	−0.028	0.192
Mean radius	0.92	1.15	0.112	<0.000	0.132	<0.000	−0.034	0.110
Equivalent radius	0.77	0.87	0.103	<0.000	0.120	<0.000	−0.031	0.149
Width	2.15	1.34	0.073	0.000	0.079	0.000	0.026	0.223
Height	1.97	1.36	0.107	<0.000	0.092	<0.000	−0.047	0.029
Fiber length	3.16	4.68	0.110	<0.000	0.123	<0.000	−0.028	0.196
Fiber breadth	0.65	0.56	0.079	0.000	0.098	<0.000	−0.026	0.227
Centroid Y	94.5	88.5	0.086	<0.000	0.088	<0.000	−0.008	0.723
Centroid X	67.83	86.8	0.033	0.125	0.066	0.002	−0.022	0.315

^aNumber of samples = 2170; number of cells = 37.
^bUnits are μm² for area except centroid values which are integer values without units.