Background
Materials and methods
Study design and population
Outcome variable(s)
Predictor variables
Potential confounding variables
Statistical analysis
Results
Independent Variable
|
No Untreated Dental Caries
n/N (%)
|
At least One tooth with Untreated Dental caries
n/N (%)
|
P Value
| |
---|---|---|---|---|
3843/5205 (73.8)
|
1362/5205 (26.2)
| |||
Sleep Duration
|
< 7 h
|
796/1167 (68.2)
|
371/1167 (31.8)
|
P < 0.001
|
≥ 7 h |
3047/4038 (75.6)
|
991/4038 (24.6)
| ||
Age
|
16–29
|
1034/1297 (79.7)
|
263/1297 (20.3)
|
P < 0.001
|
30–34
|
281/405 (69.4)
|
124/405 (30.6)
| ||
35–49
|
792/1104 (71.7)
|
312/1104 (28.3)
| ||
50–64
|
955/1334 (71.6)
|
379/1334 (28.4)
| ||
≥ 65
|
781/1065 (73.3)
|
284/1065 (26.7)
| ||
Gender
|
Males
|
1775/2506 (70.8)
|
731/2506 (29.2)
|
P < 0.001
|
Females
|
2068/2699 (76.6)
|
631/2699 (23.4)
| ||
Race/ethnicity
|
Non-Hispanic White
|
1305/1732 (75.4)
|
427/1732 (24.6)
|
P < 0.001
|
Non-Hispanic Black
|
752/1202 (62.6)
|
450/1202 (37.4)
| ||
Hispanic
|
933/1224 (76.2)
|
291/1224 (23.8)
| ||
Non-Hispanic Asian
|
651/770 (84.6)
|
119/770 (15.4)
| ||
Other race
|
202/277 (72.9)
|
75/277 (27.1)
| ||
Education level
|
< High school
|
540/856 (63.1)
|
316/856 (36.9)
|
P < 0.001
|
High school graduate / GED
|
681/1067 (63.8)
|
386/1067 (36.2)
| ||
Some college or more
|
2131/2723 (78.3)
|
592/2723 (21.7)
| ||
Income (Income: Poverty)
|
< 1.38
|
873/1381 (63.2)
|
508/1381 (36.8)
|
P < 0.001
|
1.38–3.99
|
1427/1952 (73.1)
|
525/1952 (26.9)
| ||
> 3.99
|
1543/1872 (82.4)
|
329/1872 (17.6)
| ||
Obesity by BMI
|
Obese < 30
|
2352/3074 (76.5)
|
722/3074 (23.5)
|
P < 0.001
|
Obese ≥ 30 |
1491/2131 (70)
|
640/2131 (30)
| ||
Average sleep duration
|
Mean = 7.9
(SD = 1.4)
|
Mean = 7.7
(SD = 1.6)
|
P < 0.001
| |
BMI
|
Mean = 29.1
(SD = 7.2)
|
Mean = 30.4
(SD = 8.2)
|
P < 0.001
|
Independent Variable
| No Dental Caries Experience n/N (%) | Dental Caries Experience n/N (%) |
P value
| |
---|---|---|---|---|
575/5205 (11.1)
|
4630/5205 (88.9)
| |||
Sleep Duration
|
< 7 h
|
87/1167 (7.5)
|
1080/1167 (92.5)
|
P < 0.001
|
≥ 7 h |
488/4038 (12.1)
|
3550/4038 (87.9)
| ||
Age
|
16–29
|
378/1297 (29.1)
|
919/1297 (70.9)
|
P < 0.001
|
30–34
|
74/405 (18.3)
|
331/405 (81.7)
| ||
35–49
|
86/1104 (7.8)
|
1018/1104 (92.2)
| ||
50–64
|
33/1334 (2.5)
|
1301/1334 (97.5)
| ||
≥ 65
|
4/1061 (0.4)
|
1061/1065 (99.6)
| ||
Gender
|
Males
|
297/2506 (11.8)
|
2209/2506 (88.2)
|
P = 0.074
|
Females
|
278/2699 (10.3)
|
2421/2699 (89.7)
| ||
Race/ethnicity
|
Non-Hispanic White
|
167/1732 (9.6)
|
1565/1732 (90.4)
|
P < 0.001
|
Non-Hispanic Black
|
113/1202 (9.4)
|
1089/1202 (90.6)
| ||
Hispanic
|
128/1224 (10.4)
|
1096/1224 (89.6)
| ||
Non-Hispanic Asian
|
129/770 (16.7)
|
641/770 (83.3)
| ||
Other race
|
38/277 (13.7)
|
239/277 (86.3)
| ||
Education level
|
< High school
|
59/856 (6.9)
|
797/856 (93.1)
|
P = 0.28
|
High school graduate / GED
|
81/1067 (7.6)
|
986/1067 (92.4)
| ||
Some college or more
|
231/2723 (8.5)
|
2492/2723 (91.5)
| ||
Income (Income: Poverty)
|
< 1.38
|
151/1381 (10.9)
|
1230/1381 (89.1)
|
P = 0.434
|
1.38–3.99
|
204/1952 (10.4)
|
1748/1952 (89.6)
| ||
> 3.99
|
220/1872 (11.7)
|
1652/1872 (88.3)
| ||
Obesity by BMI
|
Obese (BMI < 30)
|
391/3074 (12.7)
|
2683/3074 (87.3)
|
P < 0.05
|
Obese (BMI ≥ 30) |
184/2131 (8.6)
|
1947/2131 (91.4)
| ||
Average sleep duration
|
Mean = 8.1
(SD = 1.2)
|
Mean = 27.7
(SD = 7.6)
|
P < 0.05
| |
BMI
|
Mean = 7.8
(SD = 1.5)
|
Mean = 29.7
(SD = 7.4)
|
P < 0.05
|
Predictor variable | Untreated Dental Caries | Dental Caries Experience | ||||
---|---|---|---|---|---|---|
Adjusted Mean Ratio | P Value | 95% Confidence Interval | Adjusted Mean Ratio | P Value | 95% Confidence Interval | |
Sleep duration* | 0.89 | P = 0.023 | 0.81–0.98 | 0.97 | 0.004 | 0.96–0.99 |
Sleep ≥ 7 h/night# | 0.69 | P = 0.001 | 0.57–0.83 | 0.92 | 0.03 | 0.87–0.99 |
Predictor variable | Untreated Dental Caries | Dental Caries Experience | ||||
---|---|---|---|---|---|---|
Adjusted Odds Ratio | P Value | 95% Confidence Interval | Adjusted Odds Ratio | P Value | 95% Confidence Interval | |
Sleep duration* | 0.87 | 0.002 | 0.81–0.94 | 0.86 | 0.036 | 0.75–0.98 |
Sleep ≥ 7 h/night# | 0.7 | 0.005 | 0.56–0.88 | 0.52 | 0.008 | 0.33–0.82 |