Table 1.

Breathing pattern evaluation according to the results from the tests of water dwelling time in the mouth (in minutes) and the steam in the mirror, according to the type of school.

Type of school
Variables	Private		Public		Group Total		P value
	N	%	n	%	N	%
• Breathing Pattern Time (minutes)
< 3 (RO)(2)	37	46.8	44	68.7	81	56.6	p(1) = 0.0086*
> = 3 (RN)(2)	42	53.2	20	31.3	62	43.4
TOTAL	79	100.0	64	100.0	143	100.0
• Steam in the mirror
Superior (RN)(2)	43	54.4	21	32.8	64	44.8	p(1) = 0.0298*
Inferior (RO)(2)	1	1.3	1	1.6	2	1.4
Both (RO) (2)	35	44.3	42	65.6	77	53.8
TOTAL	79	100.0	64	100.0	143	100.0

(*) Significant difference at 5.0%.

(1) Through the Pearson's chi-squared test.

(2) Results regarding breathing type - RO oral breathing

RN nasal breathing