Table 5. Spearman's correlation coefficient and median (P25; P75) of the estimate of energy and nutrients of the usual diet of women according to the score of the Diet Quality Index Adapted for Pregnant Women (IQDAG). Ribeirão Preto, state of São Paulo, Brazil, 2012. (n = 785).
| Variable | r | IQDAG | pb | ||
|---|---|---|---|---|---|
| 1st Tertile (n = 261) | 2nd Tertile (n = 263) | 3rd Tertile (n = 261) | |||
| Energy (kcal) | 0.03 | 2013.1 (1695.4; 2354.6) | 2002.2 (1697.1; 2372.5) | 2011.6 (1728.1; 2348.0) | 0.778 |
| Carbohydrates (% TEV) | 0.12a | 54.2 (50.7; 57.8) | 55.0 (50.6; 59.1) | 56.0 (51.8; 59.3) | 0.013 |
| Proteins (% TEV) | 0.26a | 15.7 (14.2; 17.8) | 16.7 (14.6; 19.0) | 17.7 (15.7; 19.6) | < 0.001 |
| Total Fat (% TEV) | –0.16a | 25.5 (22.0; 29.0) | 24.7 (21.5; 28.1) | 23.7 (20.8; 27.1) | 0.010 |
| Saturated fat (% TEV) | –0.12a | 8.5 (7.1; 9.8) | 8.3 (7.1; 9.6) | 8.0 (6.9; 9.2) | 0.015 |
| Polyunsaturated fat (% TEV) | 0.04 | 4.4 (3.5; 5.5) | 4.3 (3.8; 5.1) | 4.4 (3.7; 5.4) | 0.690 |
| Monounsaturated fat (% TEV) | –0.15a | 7.5 (6.4; 8.9) | 7.3 (6.2; 8.4) | 7.0 (6.0; 8.2) | 0.004 |
| Trans fat (% TEV) | –0.03 | 1.3 (0.8; 1.9) | 1.2 (0.8; 1.8) | 1.2 (0.9; 1.8) | 0.950 |
| Cholesterol (mg) | 0.17a | 205.1 (164.6; 266.9) | 223.5 (173.5; 282.3) | 237.8 (181.6; 298.8) | < 0.001 |
| Vitamin C (mg) | 0.23a | 157.5 (65.2; 279.5) | 196.5 (89.0; 348.9) | 256.3 (147.4; 401.6) | < 0.001 |
| Vitamin E (mg) | 0.13a | 7.7 (5.7; 10.7) | 8.1 (6.1; 11.4) | 8.9 (6.5; 11.3) | 0.012 |
| Vitamin A (ui) | 0.25a | 10736.7 (6132.0; 16257.4) | 12790.0 (7341.5; 19779.0) | 15714.4 (9941.5; 21726.1) | < 0.001 |
| Calcium (mg) | 0.34a | 419.8 (303.3; 544.9) | 537.8 (412.6; 696.4) | 592.9 (441.5; 759.0) | < 0.001 |
| Folate (μg) | 0.33a | 362.0 (294.3; 421.1) | 404.1 (322.1; 515.0) | 452.0 (363.7; 548.6) | < 0.001 |
| Iron (mg) | 0.40a | 10.2 (6.9; 67.0) | 64.0 (8.8; 69.5) | 68.3 (38.2; 72.1) | < 0.001 |
TEV: total energy value
a
p < 0.01
b
Kruskal-Wallis test.