Table 2.
Comparison of energy and energy-adjusted daily nutrient intakes as measured through two FFQ administrations among a convenience sample of ninety-two Puerto Rican adults (≥21 years) from the Medical Sciences Campus, University of Puerto Rico, 2010
| First FFQ | Repeated FFQ | Pearson correlation | ||||||
|---|---|---|---|---|---|---|---|---|
| Nutrient | Mean | sd | Mean | sd | Difference (%)* | r | P value | Paired t test P value |
| Energy (kJ) | 10 242 | 4138 | 9519 | 3515 | 7·1 | 0·65 | <0·01 | 0·07 |
| Fat (g) | 85·8 | 41·2 | 79·8 | 34·3 | 7·0 | 0·66 | <0·01 | 0·10 |
| Carbohydrate (g) | 314 | 150 | 287 | 110 | 8·7 | 0·67 | <0·01 | 0·07 |
| Protein (g) | 93·5 | 37·0 | 91·3 | 38·9 | 2·4 | 0·62 | <0·01 | 0·46 |
| Cholesterol (mg) | 317 | 168 | 315 | 168 | 0·4 | 0·66 | <0·01 | 0·92 |
| Saturated fat (g) | 30·9 | 16·4 | 29·4 | 14·3 | 4·8 | 0·69 | <0·01 | 0·26 |
| Monounsaturated fat (g) | 29·2 | 13·8 | 27·2 | 11·6 | 6·9 | 0·66 | <0·01 | 0·11 |
| Polyunsaturated fat (g) | 18·7 | 10·0 | 16·7 | 6·9 | 10·9 | 0·61 | <0·01 | 0·03 |
| Dietary fibre (g) | 19·4 | 9·2 | 18·2 | 9·4 | 5·9 | 0·58 | <0·01 | 0·10 |
| Vitamin A (µg RE) | 6390 | 3617 | 5965 | 3005 | 6·7 | 0·62 | <0·01 | 0·22 |
| β-Carotene equivalents (µg) | 2621 | 1882 | 2377 | 1636 | 9·3 | 0·57 | <0·01 | 0·13 |
| Vitamin D (µg) | 5·0 | 2·9 | 5·5 | 3·4 | −9·0 | 0·71 | <0·01 | 0·17 |
| Vitamin E (α-tocopherol, mg) | 9·4 | 5·0 | 8·9 | 4·3 | 5·3 | 0·60 | <0·01 | 0·37 |
| Vitamin K (µg) | 78·3 | 39·3 | 71·0 | 32·3 | 9·4 | 0·43 | <0·01 | 0·13 |
| Vitamin C (mg) | 106 | 71·6 | 87·4 | 43·9 | 17·7 | 0·53 | <0·01 | 0·12 |
| Thiamin (mg) | 1·9 | 0·8 | 1·8 | 0·8 | 5·0 | 0·53 | <0·01 | 0·22 |
| Riboflavin (mg) | 2·3 | 1·2 | 2·3 | 1·1 | 0·9 | 0·66 | <0·01 | 0·82 |
| Niacin (mg) | 25·8 | 14·3 | 24·7 | 11·7 | 4·4 | 0·60 | <0·01 | 0·34 |
| Pantothenic acid (mg) | 5·8 | 3·2 | 5·8 | 2·8 | 0·2 | 0·66 | <0·01 | 0·95 |
| Vitamin B6 (mg) | 2·5 | 2·3 | 2·3 | 1·5 | 6·7 | 0·52 | <0·01 | 0·49 |
| Folate (µg) | 433 | 227 | 417 | 216 | 3·8 | 0·48 | <0·01 | 0·44 |
| Vitamin B12 (µg) | 7·5 | 5·0 | 7·5 | 4·8 | −0·6 | 0·67 | <0·01 | 0·71 |
| Ca (mg) | 1149 | 520 | 1167 | 541 | −1·5 | 0·73 | <0·01 | 0·73 |
| P (mg) | 1491 | 617 | 1474 | 636 | 1·1 | 0·66 | <0·01 | 0·66 |
| Mg (mg) | 333 | 138 | 321 | 138 | 3·7 | 0·67 | <0·01 | 0·20 |
| Fe (mg) | 17·1 | 7·0 | 16·3 | 7·2 | 4·2 | 0·58 | <0·01 | 0·27 |
| Zn (mg) | 13·8 | 5·9 | 13·2 | 5·6 | 4·5 | 0·66 | <0·01 | 0·19 |
| Cu (mg) | 1·5 | 0·6 | 1·4 | 0·6 | 5·5 | 0·60 | <0·01 | 0·11 |
| Se (µg) | 136 | 58 | 132 | 64 | 3·2 | 0·55 | <0·01 | 0·35 |
| Na (mg) | 6058 | 2309 | 5534 | 2170 | 8·6 | 0·54 | <0·01 | 0·01 |
| K (mg) | 2945 | 1249 | 2776 | 1097 | 5·7 | 0·65 | <0·01 | 0·14 |
| Mn (mg) | 4·2 | 2·1 | 4·2 | 2·5 | 0·8 | 0·62 | <0·01 | 0·35 |
| Trans-fat (g) | 3·3 | 1·5 | 3·2 | 1·4 | 4·7 | 0·63 | <0·01 | 0·31 |
| n 3 Fatty acids (g) | 1·8 | 1·0 | 1·7 | 0·8 | 8·4 | 0·58 | <0·01 | 0·13 |
RE, retinol equivalents.
*
Percentage difference calculated individually as difference between the value obtained in the first FFQ and the value obtained in the repeated FFQ.