Table 3.

Number of observed blood vessels within 1 cm of each injection site in young adults.

	Males (%)		Females (%)
Sites	Observed	Not observed	Observed	Not observed
(a)	0 (0.0)	13 (100.0)	2 (14.3)	12 (85.7)
(b)	0 (0.0)	13 (100.0)	0 (0.0)	14 (100.0)
(c)	1 (7.7)	12 (92.3)	1 (7.1)	13 (92.9)
(d)	1 (7.7)	12 (92.3)	0 (0.0)	14 (100.0)
(e)	7 (53.8)	6 (46.2)	11 (78.6)	3 (21.4)
(f)	0 (0.0)	13 (100.0)	0 (0.0)	14 (100.0)

(a); three finger breadths below the acromion, (b); the point on the anteroposterior axillary line, (c); the point of Clark, (d); the novel point on the gluteus medius, (e); the middle of the rectus femoris, (f); the middle of the vastus lateralis. Males; n = 13, Females; n = 14.