Relationship of Routine Inadequate Sleep Duration and Periodontitis in a Nationally Representative Sample

Table 1

Sample characteristics: NHANES Health and Nutrition Examination Surveys 2009–2012.

Total	Frequency; 3,740	Weighted percent; 100
Periodontitis
No	1,646	52.7
Yes	2,094	47.3
Adequate sleep
<7 hours	1,484	35.7
7 or more hours	2,256	64.3
Age groups
30 to less than 45 years	1,341	38.5
45 to less than 55 years	945	28.7
55 years and above	1,454	32.8
Sex
Female	1,873	50.8
Male	1,867	49.2
Race/ethnicity
Non-Hispanic White	1,790	69.4
Non-Hispanic Black	671	11.0
Mexican American	676	8.0
Other	328	50.7
Education
HS graduate or less	1,841	39.1
Some coll/tech/or more	1,890	60.9
Smoking
Current	728	17.0
Former	952	26.0
Never	2,060	57.0
Number of missing teeth
0–5	1,834	55.9
6–9	903	24.7
10–20	662	12.9
More than 20	341	6.4
Federal Poverty Level Index
0 to less than 1.25	939	16.0
1.25 to less than 2.00	538	12.6
2.00 to less than 4.00	906	29.9
4.00 and above	962	41.5
Insurance coverage
Yes	2,835	81.7
No	905	18.3
Diabetes
Yes	559	11.3
No	3,181	88.7

Abbreviations: NHANES-National Health and Nutrition Examination Surveys; HS = high school; coll = college; tech = technical school.