Table 1. The associations between adenotonsillar size and AHI in different age groups.

		Tonsil grade			Adenoid size
	N	R	P		r	p
Age group
Toddler	42	0.34	0.029*		0.37	0.019*
Preschool	164	0.35	<0.001*		0.31	<0.001*
School	200	0.35	<0.001*		0.28	<0.001*
Adolescence	89	0.31	0.009*		0.11	0.368

Note: *p <0.05 as significant. AHI = apnea/hypopnea index.