Table 2.

AV and CS results in the Norm group, according to age groups.

		<1 y	1–2 y	3–5 y	6–11 y	>12 y	p
VA (cpd)		N = 33	N = 135	N = 526	N = 706	N = 63
	Mean (s.d)	8.80 (4.59)	9.87 (5.10)	13.94 (4.80)	15.11 (4.33)	16.54 (3.24)	<0.001 *
CS (u log)		N = 29	N = 133	N = 520	N = 699	N = 61
	Mean (s.d)	0.74 (0.59)	0.99 (0.62)	1.66 (0.53)	1.82 (0.47)	1.89 (0.50)	<0.001 *

* ANOVA between age groups. Data are presented as mean (s. d).