Table 2.

Comparison of the morphological features (length, width, height, W/L, H/L, and H/W) between the U.S. and Chinese children templates.

Measurement	Age	U.S. templates	CN templates	U.S. minus CN
Length (mm)	8	163	154	9
	10	168	154	14
	12	168	168	0
	14	171	166	5
	16	169	159	10
Width (mm)	8	133	138	−5
	10	129	140	−11
	12	134	138	−4
	14	131	140	−9
	16	131	134	−3
Height (mm)	8	132	131	1
	10	132	134	−2
	12	130	143	−13
	14	136	142	−6
	16	132	131	1
W/L	8	0.82	0.9	−0.08
	10	0.77	0.91	−0.14
	12	0.8	0.82	−0.02
	14	0.77	0.84	−0.07
	16	0.78	0.84	−0.06
H/L	8	0.81	0.85	−0.04
	10	0.79	0.87	−0.08
	12	0.77	0.85	−0.08
	14	0.8	0.86	−0.06
	16	0.78	0.82	−0.04
H/W	8	0.99	0.95	0.04
	10	1.02	0.96	0.06
	12	0.97	1.04	−0.07
	14	1.04	1.01	0.03
	16	1.01	0.98	0.03