Table 1.
Demographic characteristics of US adults ≥ 20 years by quintile of Healthy Eating Index (HEI-2015) score, NHANES 2011–2012 and 2013–2014. Frequencies and means (± standard errors) are weighted to account for the complex survey design and yield estimates generalizable to the US population.
| HEI 2015 Quintile | I | II | III | IV | V | Total |
|---|---|---|---|---|---|---|
| HEI 2015 Range | 16.93 – 42.62 | 42.63– 50.44 | 50.45 – 57.89 | 57.90 – 66.74 | 66.75 – 95.80 | 16.93 – 95.80 |
| Number of participants | 1550 | 1551 | 1550 | 1550 | 1550 | 7751 |
| Age (y)* | 41.9±0.7 | 45.5±0.9 | 48.5±0.7 | 48.8±0.8 | 52.4±0.9 | 47.4±0.5 |
| Gender (%)† | ||||||
| Men | 55.5 | 52.3 | 50.5 | 45.1 | 40.4 | 48.8 |
| Women | 44.5 | 47.7 | 49.5 | 54.9 | 59.6 | 51.2 |
| Race/Ethnicity (%)† | ||||||
| Mexican-American | 10.1 | 8.6 | 7.8 | 8.5 | 5.7 | 8.2 |
| Other Hispanic | 4.1 | 5.3 | 5.8 | 6.2 | 6.2 | 5.5 |
| Non-Hispanic White | 66.8 | 67.1 | 67.9 | 66.7 | 70.2 | 67.7 |
| Non-Hispanic Black | 13.1 | 12.7 | 11.3 | 10.4 | 7.3 | 11.0 |
| Non-Hispanic Asian | 2.7 | 3.8 | 4.5 | 6.0 | 8.6 | 5.1 |
| Other, including Multi-racial | 3.3 | 2.5 | 2.6 | 2.2 | 2.1 | 2.6 |
| Family income-to-poverty threshold ratio * | 2.49±0.09 | 2.76±0.12 | 2.95±0.12 | 3.18±0.09 | 3.41±0.12 | 2.95±0.08 |
| Highest education (%)† | ||||||
| 11th grade or less | 17.4 | 16.1 | 13.6 | 12.5 | 8.7 | 13.7 |
| High school graduate/GED | 27.9 | 23.2 | 21.8 | 17.0 | 13.2 | 20.7 |
| Some college, AA degree, or college graduate | 54.7 | 60.7 | 64.6 | 70.5 | 78.1 | 65.6 |
| Last dental visit (%)† | ||||||
| Within past 1 year | 48.5 | 56.5 | 60.6 | 65.7 | 76.9 | 61.5 |
| >1 year but <= 3 years | 22.6 | 19.9 | 19.5 | 19.6 | 12.3 | 18.8 |
| > 3years | 28.9 | 23.6 | 20.0 | 14.8 | 10.8 | 19.7 |
| Current cigarette use (%)† | 32.9 | 21.3 | 19.5 | 11.3 | 8.8 | 18.8 |
| Ever told by a doctor had heart attack (%) | 3.0 | 3.0 | 4.4 | 2.6 | 3.3 | 3.3 |
*
Linear trend across quintiles, p<0.001.
†
Significantly different distribution among quintiles, p<0.001.