The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record
Despite the increasing use of dietary patterns (DP) to study diet and health outcomes, relatively few studies have examined the reliability of DP using different dietary assessment methods. Reduced-rank regression (RRR) is an emerging statistical method that incorporates a priori information to char...
| Main Authors: | , , , , , |
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| Format: | Article |
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Cambridge University Press
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/35802/ |
| _version_ | 1848848155351711744 |
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| author | Appannah, Geeta Pot, Gerda Karolien O'Sullivan, Therese Anne Oddy, Wendy Hazel Jebb, Susan Ann Ambrosini, Gina Leslie |
| author_facet | Appannah, Geeta Pot, Gerda Karolien O'Sullivan, Therese Anne Oddy, Wendy Hazel Jebb, Susan Ann Ambrosini, Gina Leslie |
| author_sort | Appannah, Geeta |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Despite the increasing use of dietary patterns (DP) to study diet and health outcomes, relatively few studies have examined the reliability of DP using different dietary assessment methods. Reduced-rank regression (RRR) is an emerging statistical method that incorporates a priori information to characterise DP related to specific outcomes of interest. The aim of the present study was to compare DP identified using the RRR method in a FFQ with those in a 3 d food record (FR). Participants were 783 adolescents from the Western Australian Pregnancy (Raine) Cohort Study who completed both a FFQ and FR at 14 years of age. A similar 'energy-dense, high-fat and low-fibre' DP was identified in the FFQ and FR that was characterised by high intakes of processed meat and sugar-sweetened beverages, and low intakes of vegetables and fresh fruit. Nutrient profiles for this DP were consistent in the FFQ and FR. Pearson's correlation coefficient between participants' z-scores for the DP identified in the FFQ and FR was 0·35 for girls and 0·49 for boys (P< 0·05). The mean difference between DP z-scores derived from the FFQ and FR was -0·08 (95 % CI -0·21, 0·04) for girls and -0·05 (95 % CI -0·17, 0·07) for boys. The 95 % limits of agreement were -2·55 to 2·39 for girls and -2·52 to 2·41 for boys. These findings suggest that very similar DP may be identified and their z-scores show modest agreement when applying the RRR method to dietary intake data collected from adolescents using a FFQ or FR. |
| first_indexed | 2025-11-15T09:30:00Z |
| format | Article |
| id | upm-35802 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:30:00Z |
| publishDate | 2014 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-358022016-02-10T06:19:35Z http://psasir.upm.edu.my/id/eprint/35802/ The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record Appannah, Geeta Pot, Gerda Karolien O'Sullivan, Therese Anne Oddy, Wendy Hazel Jebb, Susan Ann Ambrosini, Gina Leslie Despite the increasing use of dietary patterns (DP) to study diet and health outcomes, relatively few studies have examined the reliability of DP using different dietary assessment methods. Reduced-rank regression (RRR) is an emerging statistical method that incorporates a priori information to characterise DP related to specific outcomes of interest. The aim of the present study was to compare DP identified using the RRR method in a FFQ with those in a 3 d food record (FR). Participants were 783 adolescents from the Western Australian Pregnancy (Raine) Cohort Study who completed both a FFQ and FR at 14 years of age. A similar 'energy-dense, high-fat and low-fibre' DP was identified in the FFQ and FR that was characterised by high intakes of processed meat and sugar-sweetened beverages, and low intakes of vegetables and fresh fruit. Nutrient profiles for this DP were consistent in the FFQ and FR. Pearson's correlation coefficient between participants' z-scores for the DP identified in the FFQ and FR was 0·35 for girls and 0·49 for boys (P< 0·05). The mean difference between DP z-scores derived from the FFQ and FR was -0·08 (95 % CI -0·21, 0·04) for girls and -0·05 (95 % CI -0·17, 0·07) for boys. The 95 % limits of agreement were -2·55 to 2·39 for girls and -2·52 to 2·41 for boys. These findings suggest that very similar DP may be identified and their z-scores show modest agreement when applying the RRR method to dietary intake data collected from adolescents using a FFQ or FR. Cambridge University Press 2014-08-28 Article PeerReviewed Appannah, Geeta and Pot, Gerda Karolien and O'Sullivan, Therese Anne and Oddy, Wendy Hazel and Jebb, Susan Ann and Ambrosini, Gina Leslie (2014) The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record. British Journal of Nutrition, 112 (4). pp. 609-615. ISSN 0007-1145; ESSN: 1475-2662 http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9313356&fileId=S0007114514001111 10.1017/S0007114514001111 |
| spellingShingle | Appannah, Geeta Pot, Gerda Karolien O'Sullivan, Therese Anne Oddy, Wendy Hazel Jebb, Susan Ann Ambrosini, Gina Leslie The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record |
| title | The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record |
| title_full | The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record |
| title_fullStr | The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record |
| title_full_unstemmed | The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record |
| title_short | The reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a FFQ and 3 d food record |
| title_sort | reliability of an adolescent dietary pattern identified using reduced-rank regression: comparison of a ffq and 3 d food record |
| url | http://psasir.upm.edu.my/id/eprint/35802/ http://psasir.upm.edu.my/id/eprint/35802/ http://psasir.upm.edu.my/id/eprint/35802/ |