{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T11:04:47Z","timestamp":1774436687233,"version":"3.50.1"},"reference-count":10,"publisher":"S. Karger AG","issue":"4","license":[{"start":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T00:00:00Z","timestamp":1104537600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T00:00:00Z","timestamp":1104537600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Ann Nutr Metab"],"published-print":{"date-parts":[[2005]]},"abstract":"<jats:p>&lt;i&gt;Background\/Aims:&lt;\/i&gt; Validity and reproducibility were evaluated of a new questionnaire to assess fruit and vegetable intakes in 11- to 12-year-old children. &lt;i&gt;Methods:&lt;\/i&gt; The precoded teacher-assisted self-administered questionnaire included two sections: a 24-hour recall part and a food frequency part. Validity was tested in 4 countries (Denmark, Iceland, Norway, Portugal; n = 43\u201360 per country) using a 1-day weighed food record and 7-day food records as reference methods. Test-retest (7\u201312 days apart) reproducibility was assessed in 6 countries (Belgium, Denmark, Iceland, Norway, Portugal, Spain; n = 60\u201374 per country). &lt;i&gt;Results:&lt;\/i&gt; Spearman rank correlations for fruit and vegetable intake according to the frequency part and the 7-day food record ranged between r = 0.40\u20130.53. Between 25\u201350% were classified into the same quartile and 70\u201388% into the same or adjacent quartile. Test-retest Spearman rank correlations for the food frequency part were r = 0.47\u20130.84. Three countries showed no significant difference between fruit intake as assessed with the 24-hour recall part and the 1-day weighed food record, and 2 countries showed no significant difference for vegetables. In the other countries, the 24-hour recall part resulted in substantially higher mean intake levels. &lt;i&gt;Conclusion:&lt;\/i&gt; Validity and reproducibility as to ranking of subjects were regarded to be satisfactory in all countries. Group mean intake, based on the original 24-hour part, was valid for fruit in 3 countries and for vegetables in 2 countries, and this part was subsequently adjusted to avoid overestimation, before the questionnaire was used in the Pro Children study.<\/jats:p>","DOI":"10.1159\/000087276","type":"journal-article","created":{"date-parts":[[2005,7,29]],"date-time":"2005-07-29T10:02:17Z","timestamp":1122631337000},"page":"221-227","source":"Crossref","is-referenced-by-count":84,"title":["Validity and Reproducibility of a Precoded Questionnaire to Assess Fruit and Vegetable Intake in European 11- to 12-Year-Old Schoolchildren"],"prefix":"10.1159","volume":"49","author":[{"given":"J\u00f3hanna","family":"Haraldsd\u00f3ttir","sequence":"first","affiliation":[]},{"given":"Inga","family":"Th\u00f3rsd\u00f3ttir","sequence":"additional","affiliation":[]},{"given":"Maria Daniel Vaz","family":"de Almeida","sequence":"additional","affiliation":[]},{"given":"Lea","family":"Maes","sequence":"additional","affiliation":[]},{"given":"Carmen","family":"P\u00e9rez Rodrigo","sequence":"additional","affiliation":[]},{"given":"Ibrahim","family":"Elmadfa","sequence":"additional","affiliation":[]},{"given":"Lene","family":"Frost Andersen","sequence":"additional","affiliation":[]}],"member":"127","published-online":{"date-parts":[[2005,8,26]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1136%2Fewjm.173.6.378"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1159%2F000087245"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1038%2Fsj.ejcn.1601875"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1016%2FS0002-8223%2897%2900022-9"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1093%2Fher%2F17.2.211"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1017%2FS1368980099000397"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1016%2FS0002-8223%2898%2900127-8"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1079%2FPHN2003466"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1079%2FPHN2002356"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.2105%2FAJPH.88.8.1216"}],"container-title":["Annals of Nutrition and Metabolism"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/87276","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/87276","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T03:20:41Z","timestamp":1745464841000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000087276"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2005]]},"references-count":10,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2005,8,1]]}},"URL":"https:\/\/doi.org\/10.1159\/000087276","archive":["Portico"],"relation":{},"ISSN":["0250-6807","1421-9697"],"issn-type":[{"value":"0250-6807","type":"print"},{"value":"1421-9697","type":"electronic"}],"subject":[],"published":{"date-parts":[[2005]]}}}