Table 1.
Number of children examined and population distribution of family income and dental caries experience among US children and adolescents in three periods of National Health and Nutrition Examination Surveys, 1988 to 2014
| Age group (years) | |||||
|---|---|---|---|---|---|
| Period | Statistic | 2–5 | 6–11 | 12–17 | All 2–17 |
| 1988–1994 | Number of children | ||||
| Unweighted number examined | 4,301 | 3,237 | 2,437 | 9,975 | |
| Family income: % of population (se) | Weighted population estimates
|
||||
| Below poverty threshold | 26.4 (1.5) | 24.3 (1.8) | 20.8 (1.7) | 23.5 (1.2) | |
| 100-<200% of poverty threshold | 24.1 (1.1) | 23.2 (1.5) | 23.2 (1.7) | 23.4 (1.1) | |
| 200-<300% of poverty threshold | 20.5 (1.2) | 22.3 (1.5) | 22.4 (2.1) | 21.9 (1.2) | |
| ≥ 300% of poverty threshold | 23.5 (1.4) | 26.2 (1.7) | 27.3 (2.4) | 25.9 (1.4) | |
| Missing | 5.5 (0.4) | 4.1 (0.5) | 6.3 (1.0) | 5.2 (0.5) | |
| Dental caries: population mean (s.e.) * | |||||
| dfs† per child | 2.1 (0.2) | 3.5 (0.2) | |||
| DMFS‡ per child | 0.9 (0.1) | 4.4 (0.3) | |||
| Dental caries: population prevalence (s.e.) | |||||
| % of children with dfs>0 | 23.9 (1.3) | 44.3 (1.6) | |||
| % of children with DMFS>0 | 26.0 (1.7) | 64.0 (2.1) | |||
| 1999–2004 | Number of children | ||||
| Unweighted number examined | 2,379 | 3,171 | 5,105 | 10,655 | |
| Family income: % of population (se) | Weighted population estimates
|
||||
| Below poverty threshold | 25.8 (1.2) | 22.2 (1.3) | 19.6 (0.8) | 22.1 (0.8) | |
| 100-<200% of poverty threshold | 24.6 (1.5) | 25.1 (1.7) | 21.1 (1.0) | 23.4 (1.2) | |
| 200-<300% of poverty threshold | 14.9 (1.2) | 16.8 (1.2) | 15.5 (0.9) | 15.9 (0.9) | |
| ≥ 300% of poverty threshold | 28.6 (1.8) | 30.2 (1.9) | 37.6 (1.5) | 32.6 (1.5) | |
| Missing | 6.3 (0.7) | 5.6 (0.8) | 6.2 (0.6) | 6.0 (0.5) | |
| Dental caries: population mean (s.e.) | |||||
| dfs per child | 2.6 (0.2) | 4.0 (0.2) | |||
| DMFS per child | 0.7 (0.0) | 3.5 (0.1) | |||
| Dental caries: population prevalence (s.e.) | |||||
| % of children with dfs>0 | 28.0 (1.4) | 46.3 (1.9) | |||
| % of children with DMFS>0 | 20.8 (1.1) | 55.4 (1.0) | |||
| Age group | |||||
| Period | Statistic | 2–5 yrs | 6–11 yrs | 12–17 yrs | All 2–17 yrs |
| 2011–2014 | Number of children | ||||
| Unweighted number examined | 1,773 | 2,523 | 1,938 | 6,234 | |
| Family income: % of population (se) | Weighted population estimates
|
||||
| Below poverty threshold | 29.7 (2.4) | 25.6 (2.0) | 20.7 (2.2) | 24.8 (1.9) | |
| 100-<200% of poverty threshold | 24.7 (1.7) | 22.7 (1.4) | 22.1 (1.9) | 23.0 (1.1) | |
| 200-<300% of poverty threshold | 11.7 (1.5) | 14.5 (1.2) | 14.6 (1.4) | 13.8 (1.0) | |
| ≥ 300% of poverty threshold | 28.2 (3.1) | 32.3 (2.8) | 36.9 (3.2) | 33.0 (2.6) | |
| Missing | 5.7 (0.7) | 5.0 (0.7) | 5.7 (0.8) | 5.4 (0.6) | |
| Dental caries: population mean (s.e.) | |||||
| dfs per child | 2.6 (0.3) | 4.8 (0.3) | |||
| DMFS per child | 0.7 (0.1) | 3.5 (0.2) | |||
| Dental caries: population prevalence (s.e.) | |||||
| % of children with dfs>0 | 23.4 (1.4) | 45.4 (1.8) | |||
| % of children with DMFS>0 | 18.0 (1.1) | 52.6 (1.8) | |||
s.e. standard error
†
dfs = number of primary tooth surfaces decayed or filled due to dental decay
‡
DMFS = number of permanent tooth surfaces decayed, missing due to dental decay or filled due to dental decay