Table 1.
Summary statistics for the full sample: respondents aged 20–64 years who completed 24 h dietary recall interviews for both day 1 and day 2 in the National Health and Nutrition Examination Survey (NHANES), 2003–2010
| Consumption and nutrient intake summary statistics | Day 1 | Day 2 |
|---|---|---|
| Prevalence of consumption | ||
| Fast-food restaurant (%) | 35 | 32 |
| Fast-food restaurant away from home (%) | 23 | 21 |
| Fast-food restaurant at home (%) | 15 | 13 |
| Full-service restaurant (%) | 28 | 20 |
| Full-service restaurant away from home (%) | 23 | 17 |
| Full-service restaurant at home (%) | 6 | 4 |
| Non-restaurant away from home (%) | 61 | 60 |
| Consumption on weekday (%) | 59 | 80 |
| Energy intake | ||
| Total energy (kJ) | ||
| Mean | 9548 | 8866 |
| se | 54 | 54 |
| Total energy (kcal) | ||
| Mean | 2282 | 2119 |
| se | 13 | 13 |
| Dietary nutrient intakes | ||
| Sugar (g) | ||
| Mean | 125 | 116 |
| se | 1·0 | 0·95 |
| Saturated fat (g) | ||
| Mean | 29 | 26 |
| se | 0·3 | 0·3 |
| Na (mg) | ||
| Mean | 3689 | 3519 |
| se | 23·8 | 21·0 |
| Socio-economic statistics | Full sample | |
| Male (%) | 48·90 | |
| Young adults aged 20–34 years (%) | 31·55 | |
| Older adults aged 35–64 years (%) | 68·45 | |
| White (%) | 69·48 | |
| Black (%) | 11·49 | |
| Hispanic (%) | 13·22 | |
| Other (%) | 5·81 | |
| Low income (%) | 18·23 | |
| Middle income (%) | 25·52 | |
| High income (%) | 51·03 | |
| Full sample size | 12 528 | |
All summary statistics are weighted using the NHANES examination weight. Low-income adults were defined as individuals in families with income <130 % of the federal poverty level (FPL), middle-income adults as ≥130 % and <300 % of the FPL, and high-income adults as ≥300 % of the FPL.