Table 3.

Multiple linear regression of oral health-related quality of life by sociodemographic, behavioral, and support variables

Covariates	Oral health-related quality of life
	Estimate	Standard error	p value
Interceptb	27.24	0.29	<.0001
Age
20–24			Reference
25–44a	−1.28	0.44	0.0116
45–64a	−1.03	0.30	0.0037
65+	−0.16	0.31	0.6198
Ethnicity
White			Reference
Latinoa	0.91	0.21	0.0006
African American	−0.18	0.23	0.4477
Other	−0.46	0.40	0.2686
Gender
Female			Reference
Malea	0.42	0.15	0.0123
Education
College degree			Reference
Some collegea	−0.53	0.20	0.0202
High school	−0.57	0.28	0.0612
Less than high schoola	−1.29	0.27	0.0003
Household size
2–3 per house			Reference
1 person	−0.42	0.23	0.0828
4 or more	0.10	0.31	0.7496
Alcohol
No use			Reference
Moderate	−0.14	0.25	0.5930
Heavy	−0.40	0.50	0.4283
Smoking
Non-smoker			Reference
Previous smoker	−0.38	0.20	0.0825
Smoke other tobacco	0.16	0.38	0.6798
Smoke cigaretteb	−1.67	0.32	0.0001
Emotional support
Have support			Reference
No support	−0.16	0.57	0.7796
Financial support
Have support			Reference
No supporta	−0.83	0.28	0.0103

^ap < 0.05

^bp ≤ 0.0001