Table 3. Comparison of ages at onset of diabetes mellitus and optic atrophy in subjects with and without a mutated WFS1 gene.

	WFS1 mutation(+)	WFS1 mutation(−)
	(n = 27)	(n = 11)	P
Age at onset of DM	8.1±7.3	11.6±8.6	0.27
Age at onset of OA	14.5±10.5	18±11.8	0.43

*Data are expressed as means±SD.