Table 2. Differences in facial measurements between Dutch and UK.

	Dutch female	UK female	P	Dutch male	UK male	P
Face length (mm)	113.7	111.9	<0.05a	122.8	122.4	0.68
Nasal ridge length (mm)	46.4	47.4	<0.05a	49.6	50.5	0.10
Relative nasal ridge length	0.41	0.42	<0.0001b	0.40	0.41	<0.05a
Upper face proportion	0.46	0.47	<0.001b	0.45	0.46	0.06
Nares anteversion	0.82	0.83	<0.05a	0.83	0.84	0.09
Nose width (mm)	33.4	32.7	<0.05a	36.3	36.9	0.15
Outer canthal separation (mm)	88.3	86.2	<0.0005b	92.3	90.6	<0.005b
Palpebral fissure width (mm)	28.3	27.3	<0.001b	29.5	28.8	<0.005b
PBL relative to face length (mm)	0.25	0.24	0.13	0.24	0.24	<0.05a

Abbreviation: PBL, palpebral fissure width. Anthropometric calculations and t-tests were performed in Excel (Microsoft Office 2010).

^aSignificant (P-value <0.05).

^bHighly significant (P-value <0.005, including <0.001 and <0.0001).