BMC Oral Health

Table 2 Univariate and multiple regression models for quality of life of alcohol and drug users

From: The impact of oral health conditions, socioeconomic status and use of specific substances on quality of life of addicted persons

	Quality of life
	Low*		High		Crude analysis			Multiple analysis
Variables	N	%	N	%	Crude OR	CI 95%	p-value	Adjusted OR	IC95%	p-value
Sex
Male	101	38.55	110	52.13	0.64	0.34-1.19	0.160
Female	30	58.82	21	41.18	Ref
Age
≤37 years	64	46.38	74	53.62	0.73	0.45-1.19	0.215
>37 years	67	54.03	57	45.97	Ref
Race
Black	51	46.36	59	53.64	0.77	0.47-1.27	0.316
White	80	52.63	72	52.63	Ref
DMFT
≤13	62	43.36	81	56.64	Ref			Ref
>13	69	57.98	50	42.02	1.80	1.11-3.03	0.018	2.25	1.30-3.89	0.003
Alcohol use risk
Low	24	48.00	26	52	0.90	0.48-1.67	0.750
Moderate/high	107	50.47	105	49.53	Ref
Marijuana use risk
Low	69	49.29	71	50.71	0.94	0.57-1.52	0.800
Moderate/high	62	50.82	60	49.18	Ref
Cocaine/crack use
Low	46	44.23	58	55.77	Ref			Ref
Moderate/high	85	53.8	73	46.2	1.47	0.89-2.44	0.120	2.02	1.15-3.59	0.014
Income
≤1 MW	32	68.09	15	31.91	2.49	1.27-4.88	0.006	2.41	1.22-4.77	0.011
>1 MW	99	46.05	116	53.95	Ref			Ref
Subject education
≤8 years	86	53.75	74	46.25	1.47	0.88-2.46	0.138
>8 years	41	44.09	52	55.91	Ref
Mother’s education
≤8 years	105	50.48	103	49.52	1.93	0.85-4.36	0.106
>8 years	10	34.48	19	65.52	Ref
Father’s education
≤8 years	84	50.00	84	50.00	1.66	0.76-3.60	0.194
>8 years	12	37.50	20	62.5	Ref

*Low quality of life was considered the level of reference of the dependent variable.
CI = confidence interval; Odds ratio; MW = minimum wage.

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