Table 2.
Averages of daily and first differences of dietary outcomes and intakes; nationally representative sample of the US population (n 7647)
| First differences (day 2 – day 1) | Average of two days | |||
|---|---|---|---|---|
| Variable | Mean | se | Mean | se |
| Energy (kJ) | −355·98 | 58·61 | 8989·19 | 61·68 |
| Fibre (g/4184 kJ) | 0·37 | 0·06 | 7·26 | 0·14 |
| Na (mg/4184 kJ) | 67·29 | 11·16 | 1613·76 | 12·32 |
| Food amount (100 g) | −1·48 | 0·23 | 22·06 | 0·28 |
| Dark green/orange vegetables – home (cups) | 0·04 | 0·01 | 0·14 | 0·01 |
| Dark green/orange vegetables – away (cups) | −0·01 | 0·00 | 0·04 | 0·00 |
| Potatoes – home (cups) | 0·01 | 0·01 | 0·26 | 0·01 |
| Potatoes – away (cups) | −0·01 | 0·01 | 0·14 | 0·01 |
| Tomatoes – home (cups) | 0·02 | 0·01 | 0·23 | 0·01 |
| Tomatoes – away (cups) | −0·03 | 0·01 | 0·13 | 0·00 |
| Other vegetables – home (cups) | 0·03 | 0·01 | 0·39 | 0·01 |
| Other vegetables – away (cups) | −0·01 | 0·01 | 0·22 | 0·01 |
Source: National Health and Nutrition Examination Survey 2003–2004.