Reproducibility and validity of a food frequency questionnaire to estimate calcium intake in Puerto Ricans
The objective of the study was to assess the reproducibility and validity of a short semiquantitative calcium specific FFQ in a convenience Puerto Rican sample.Reproducibility was tested by the difference between calcium intakes from the FFQ completed twice, with a one month difference; validity was...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Sociedad Latinoamericana de Nutrición
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| Series: | Archivos Latinoamericanos de Nutrición |
| Subjects: | |
| Online Access: | http://www.scielo.org.ve/scielo.php?script=sci_arttext&pid=S0004-06222012000300001&lng=en&tlng=en |