Table 4.
Classification of participants into quintiles of intake: comparison between the average of the two FFQ and the mean of the 6 d food records among a convenience sample of ninety-two Puerto Rican adults (≥21 years) from the Medical Sciences Campus, University of Puerto Rico, 2010
| Percentage (%) allocation by quintile | |||||||
|---|---|---|---|---|---|---|---|
| Nutrient | Exact quintile | Adjacent quintile | ±2 Quintiles | ±3 Quintiles | Gross misclassification | κ w | 95 % CI |
| Energy (kJ) | 32·6 | 41·3 | 15·2 | 8·7 | 2·2 | 0·33 | 0·20, 0·46 |
| Fat (g) | 28·3 | 33·7 | 19·6 | 15·2 | 3·3 | 0·17 | 0·02, 0·32 |
| Carbohydrate (g) | 25·0 | 36·9 | 22·8 | 10·9 | 4·4 | 0·17 | 0·03, 0·30 |
| Protein (g) | 27·2 | 38·0 | 18·5 | 14·1 | 2·2 | 0·21 | 0·06, 0·35 |
| Cholesterol (mg) | 30·4 | 43·5 | 16·3 | 6·5 | 3·3 | 0·32 | 0·18, 0·45 |
| Saturated fat (g) | 23·9 | 39·1 | 19·6 | 7·6 | 9·8 | 0·12 | −0·03, 0·26 |
| Monounsaturated fat (g) | 33·7 | 29·4 | 18·5 | 13·0 | 5·4 | 0·21 | 0·05, 0·35 |
| Polyunsaturated fat (g) | 25·0 | 37·0 | 25·0 | 10·9 | 2·2 | 0·19 | 0·05, 0·32 |
| Dietary fibre (g) | 25·0 | 35·8 | 25·0 | 10·9 | 3·3 | 0·18 | 0·04, 0·32 |
| Vitamin A (µg RE) | 31·5 | 34·8 | 26·1 | 6·5 | 1·1 | 0·30 | 0·17, 0·44 |
| β-Carotene equivalents (µg) | 35·9 | 31·5 | 18·5 | 12·0 | 2·2 | 0·29 | 0·14, 0·44 |
| Vitamin D (µg) | 32·6 | 37·0 | 22·8 | 7·6 | 0·0 | 0·34 | 0·21, 0·47 |
| Vitamin E (α-tocopherol, mg) | 29·3 | 32·6 | 22·8 | 10·9 | 4·4 | 0·17 | 0·02, 0·31 |
| Vitamin K (µg) | 28·3 | 34·8 | 17·4 | 15·2 | 4·4 | 0·17 | 0·02, 0·31 |
| Vitamin C (mg) | 32·6 | 38·1 | 20·6 | 8·7 | 0·0 | 0·34 | 0·21, 0·46 |
| Thiamin (mg) | 23·9 | 32·6 | 19·6 | 17·4 | 6·5 | 0·06 | −0·10, 0·22 |
| Riboflavin (mg) | 35·9 | 36·9 | 20·6 | 3·3 | 3·3 | 0·35 | 0·22, 0·49 |
| Niacin (mg) | 16·3 | 48·9 | 18·5 | 12·0 | 4·3 | 0·13 | −0·01, 0·26 |
| Pantothenic acid (mg) | 33·7 | 32·6 | 25·0 | 6·5 | 2·2 | 0·30 | 0·16, 0·43 |
| Vitamin B6 (mg) | 30·4 | 33·7 | 25·0 | 7·6 | 3·3 | 0·20 | 0·07, 0·34 |
| Folate (µg) | 26·1 | 32·6 | 29·3 | 10·9 | 1·1 | 0·19 | 0·06, 0·33 |
| Vitamin B12 (µg) | 31·5 | 30·4 | 23·9 | 12·0 | 2·2 | 0·22 | 0·08, 0·37 |
| Ca (mg) | 40·2 | 39·1 | 15·2 | 4·4 | 1·1 | 0·45 | 0·32, 0·58 |
| P (mg) | 32·6 | 38·0 | 21·7 | 5·4 | 2·2 | 0·33 | 0·19, 0·47 |
| Mg (mg) | 33·7 | 43·5 | 17·4 | 5·4 | 0·0 | 0·41 | 0·28, 0·53 |
| Fe (mg) | 28·3 | 34·8 | 25·0 | 7·6 | 4·3 | 0·22 | 0·08, 0·35 |
| Zn (mg) | 25·0 | 42·4 | 22·8 | 9·8 | 0·0 | 0·27 | 0·14, 0·40 |
| Cu (mg) | 29·3 | 38·1 | 17·4 | 13·1 | 2·2 | 0·25 | 0·11, 0·39 |
| Se (µg) | 22·8 | 37·0 | 23·9 | 9·8 | 6·5 | 0·12 | −0·03, 0·26 |
| Na (mg) | 32·6 | 31·5 | 22·8 | 9·8 | 3·3 | 0·25 | 0·10, 0·40 |
| K (mg) | 39·1 | 35·9 | 21·7 | 3·3 | 0·0 | 0·44 | 0·32, 0·56 |
| Mn (mg) | 28·3 | 41·3 | 20·6 | 9·8 | 0·0 | 0·30 | 0·17, 0·43 |
| Trans-fat (g) | 25·0 | 31·5 | 21·7 | 15·2 | 6·5 | 0·17 | 0·02, 0·32 |
| n 3 Fatty acids (g) | 33·7 | 25·0 | 25·0 | 7·6 | 8·7 | 0·08 | −0·06, 0·23 |
RE, retinol equivalents.