Table 3.

Associations among sociodemographic, familiar environment and clinical condition variables with oral health- related quality of life in the overall median score of CPQ_11-14, through the Poisson model for multiple regression analysis.

	Variable	n	CPQ11-14		Poisson regression
			scores > median		Estimative (b)	SE	PR - adjusted	p
			N	%
Children's perception of their oral health	fair/poor	166	124	74.7	0.1696	0.0371	1.18	< 0.0001
	excellent/very good/good	349	130	37.2
Monthly family income	≤ 3 minimum wages	242	143	59.1	0.2015	0.0527	1.22	0.0001
	> 3 minimum wages	44	6	13.6
Gender	Female	290	155	53.4	0.1108	0.035	1.12	0.0015
	Male	225	99	44.0
Orthodontic treatment need	Yes	125	80	64.0	0.1183	0.0382	1.12	0.0019
	No	390	174	44.6
Mother's education	≤ 8 years	141	94	66.7	0.1011	0.0393	1.11	0.01
	> 8 years	142	52	36.6
Number of siblings	2 or more	259	157	60.6	0.0813	0.0377	1.08	0.0312
	< 2	256	97	37.9
Household overcrowding	More than 1 person/room	76	50	65.8	0.1056	0.0491	1.11	0.0315
	≤ 1 person/room	439	204	46.5