Table 1.

Statistical Distribution Of Hair Shaft Diameters From Three Styling Groups, And Among The Five Scalp Areas

Scalp Region	Afro		Natural-Styled		Chemically Relaxed
Mean Diameter (µm)	SD	Mean Diameter (µm)	SD	Mean Diameter (µm)	SD
F	62.55	16.83	64.16	12.83	76.69*	12.76
L	62.17	18.57	62.74	14.59	75.99*	11.78
R	60.39	23.81	61.49	14.05	72.61*	15.51
O	61.27	21.78	64.41	14.23	73.56*	14.38
V	76. 01**	31.9	68.75**	14.93	81.54*,**	17.61

Notes: *Significance (p < 0.05) of comparison between Afro and chemically relaxed hair.^**Significance (p < 0.05) of comparison between Afro, natural-styled, and chemically relaxed hair.

Abbreviations: Scalp hair origin; F, frontal; L, left temporal; R, right temporal; O, occipital; V, vertex.