Table II. Correlation between OME and distraction in each class.

	Otitis positive	Distraction	Delayed answering	Need to repeat sentences
First class	27	10	11	14
		(p = 0.007)	(p = 0.001)	(p = 0.000)
Second class	27	11	5	10
		(p = 0.086)	(p = 0.689)	(p = 0.250)
Third class	19	6	3	5
		(p = 0.122)	(p = 0.546)	(p = 0.414)
Fourth class	18	4	3	3
		(p = 0.880)	(p = 0.527)	(p = 0.272)
Fifth class	13	2	0	3
		(p = 0.701)	(p = 0.482)	(p = 0.663)