Table 3.
Agreement among the presence of trans-fat-containing items in the ingredient list, trans-fat reported on the nutrition facts label and claims of no trans-fat on the packaging, stratified by food group: processed food products (n 2327) available in a large supermarket in Florianópolis, Brazil, May 2010
| Reporting | Accuracy (%) | κ | NPV (%) | PPV (%) |
|---|---|---|---|---|
| Nutrition facts label | 57·8 | 0·16 | 54·5 | 72·9 |
| Group A | 56·1 | 0·21 | 48·3 | 89·1 |
| Group B | 81·8 | 0·05 | 94·4 | 9·1 |
| Group C | 53·6 | 0·02 | 56·2 | 45·8 |
| Group D | 56·4 | 0·00 | 61·5 | 30·8 |
| Group E | 50·3 | 0·18 | 39·7 | 94·5 |
| Group F | 52·5 | 0·05 | 51·6 | 57·8 |
| Claims of no trans-fat | 46·9 | 0·00 | 42·0 | 48·3 |
| Group A | 56·6 | 0·08 | 46·7 | 41·6 |
| Group B | 3·1 | 0·00 | 50·0 | 6·2 |
| Group C | 44·3 | 0·00 | 50·0 | 42·7 |
| Group D | 68·0 | 0·42 | 100·0 | 53·7 |
| Group E | 55·9 | 0·00 | 29·1 | 65·5 |
| Group F | 7·8 | 0·00 | 37·5 | 48·3 |
NPV, negative predictive value; PPV, positive predictive value.
Food groups: Group A = bakery products, grains and grain-based products; Group B = dairy; Group C = meat-based products; Group D = oils, fats and processed nuts; Group E = sugars, sugary foods and snacks; Group F = sauces, seasoning blends, stock cubes, dry soups and refrigerated/frozen dishes.