Table 1.
Baseline characteristics of the United States and the United Kingdom INTERMAP participants, n=2,385 a
| Variable | Men | Women | Total |
|---|---|---|---|
| n | 1,232 | 1,153 | 2,385 |
| Age (y) | 49.0 (5.4) | 48.9 (5.4) | 48.9 (5.4) |
| Education (y) | 15.0 (3.2) | 14.2 (3.0)**** | 14.6 (3.1) |
| Engagement in moderate and heavy physical activity (h/24 h) | 3.3 (3.2) | 2.8 (2.8)**** | 3.1 (3.1) |
| Current smokers (%) | 230 (18.7) | 176 (15.3)* | 406 (17.0) |
| Any special diet (%) | 47 (3.8) | 95 (8.2)**** | 142 (6.0) |
| Taking dietary supplements (%) | 539 (43.8) | 641 (55.6) **** | 1,180 (49.5) |
| Total energy intake (kcal/24 h) | 2,692 (625) | 1,963 (415)**** | 2,340 (647) |
| Body mass index (kg/m2) | 28.6 (4.7) | 28.1 (6.3)* | 28.3 (4.9) |
| Normal weight (%) b | 271 (22) | 440 (38)**** | 711 (30) |
| Overweight (%) c | 579 (47) | 363 (32)**** | 942 (39) |
| Obese (%) d | 382 (31) | 350 (30) | 732 (31) |
| Eating occasions per 24 h | 4.6 (1.3) | 5.0 (1.2)**** | 4.8 (1.3) |
| Ratio of evening/morning energy intake | 3.4 (1.8) | 3.3 (1.7) | 3.4 (1.8) |
| Dietary energy density (kcal/g) | 1.9 (0.4) | 1.8 (0.4)**** | 1.8 (0.4) |
| Nutrient Rich Food index 9.3 e | 29.0 (12.7) | 32.9 (15.2)**** | 30.9 (14.1) |
Presented as mean (standard deviation) or percent (%).
Body mass index is ≤ 24.9 kg/m2.
Body mass index is 25.0 to <29.9 kg/m2.
Body mass index is ≥30.0 kg/m2.
Nutrient Rich Food index 9.3 was calculated as the sum of the daily values of nutrients to encourage , subtracting the daily values for nutrients to limit based on 100 kcal: example; Nutrient Rich Food index 9.3 = (protein g/50 g + fiber g/25 g + vitamin A IU/5000 IU + vitamin C mg/60 mg +vitamin E IU/30 IU + calcium mg/1000 mg + iron mg/18 mg + magnesium mg/400 mg + potassium mg/3500 mg – saturated fat g/20 g – added sugars g/50 g – sodium mg/2400 mg) × 100.
Significant at P < 0.05
**significant at P < 0.01
***significant at P < 0.001
significant at P < 0.0001.