Table 3.

Penile Length & Width

Genital stage	Age (years) range	Number	Length (cm) mean ± SD	Width (cm) mean ± SD
G-1a	3.4 to 6.5	10	4.77 ± 0.68	1.46 ± 0.18
G-1b	7.2 to 8.7	10	4.80 ± 0.56	1.40 ± 0.20
G-1c	8.9 to 13.2	16	4.88 ± 0.67	1.66 ± 0.20
G-1 all	3.4 to 13.2	36	4.83 ± 0.64	1.53 ± 0.23
G-2	10.0 to 15.0	16	5.28 ± 0.74*	1.74 ± 0.25
G-3	11.4 to 15.0	10	7.40 ± 0.49**	2.24 ± 0.37
G-4	11.7 to 16.9	21	8.57 ± 1.29*	2.77 ± 0.36
G-5	13.0 to 17.5	19	9.47 ± 0.99*	3.22 ± 0.28
Adult	15.8 to 34.0	43	9.66 ± 1.00	3.09 ± 0.39

Difference between the means: *p < 0.05; **p < 0.001

G-1a, b, c: The only criterion for separation is age