Table 3. Statistical analysis of data for cylinder values. Agreement between different techniques.

ANOVA for cylinder	t-test for cylinder
		Rmax(NC) vs TTR	Rmax(NC) vs R	Rmax(C) vs TTR	Rmax(C) vs R	TTR vs R
F=1.866	d	0.27	0.20	0.12	-0.04	0.06
P=0.136	P	0.040	0.045	0.178	0.420	0.470
	95%CI	0.078 to 0.329	0.005 to 0.404	-0.051 to 0.275	-0.165 to 0.692	-0.111 to 0.239
Similar		Different	Different	Similar	Similar	Similar

d: Mean difference between measurement technique; ANOVA: Analysis of variance test; CI: Confidence Interval; F: Variance ratio; Rmax: Retinomax; NC: Noncycloplegic; C: Cycloplegic; TTR: Table top autorefractor; R: Retinoscopy.