Table 2.

Bivariate analysis of oral health-related quality of life by sociodemographic, behavioral and support variables

Covariate	Weighted frequency	Mean of oral health-related quality of life	Standard error	p value
Age
20–24	23,430,000	25.45	0.15	Reference
25–44	82,330,000	25.32	0.15	0.2700
45–64a	67,610,000	25.04	0.14	0.0228
65+a	30,920,000	25.95	0.11	0.0036
Ethnicity
White	146,590,000	25.36	0.12	Reference
Latinoa	23,320,000	25.74	0.14	0.0197
African Americana	23,000,000	24.93	0.23	0.0487
Other	11,380,000	25.07	0.31	0.1915
Gender
Female	106,310,000	25.18	0.10	Reference
Malea	97,980,000	25.51	0.13	0.0221
Education
College Degree	47,770,000	26.12	0.12	Reference
Some collegeb	63,830,000	25.27	0.11	<0.0001
High Schoolb	55,020,000	25.09	0.24	<0.0001
Less than High Schoolb	37,470,000	24.80	0.17	<0.0001
Household size
2–3 per house	108,160,000	25.48	0.13	Reference
1 person	28,650,000	25.17	0.15	0.0592
4 or more	67,470,000	25.18	0.18	0.0883
Alcohol
No use	32,860,000	25.29	0.16	Reference
Moderate	110,340,000	25.37	0.10	0.3358
Heavy	11,790,000	24.87	0.44	0.1848
Missing	49,290,000	25.42	0.21	0.3112
Smoking
No use	89,120,000	25.87	0.12	Reference
Previous smoker	56,010,000	25.56	0.15	0.3358
Smoke other tobacco	7,190,000	25.55	0.38	0.1848
Smoke cigarettesb	51,940,000	24.16	0.16	<0.0001
Emotional support
Have support	117,290,000	25.31	0.12	Reference
No support	7,430,000	24.65	0.50	0.0996
Missing	79,570,000	25.44	0.13	0.2312
Financial support
Have support	98,500,000	25.48	0.14	Reference
No supportb	25,480,000	24.44	0.20	<0.0001
Missing	80,310,000	25.45	0.13	0.4376

^ap < 0.05

^bp < 0.0001