{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T03:40:45Z","timestamp":1768707645057,"version":"3.49.0"},"reference-count":62,"publisher":"Cambridge University Press (CUP)","issue":"17","license":[{"start":{"date-parts":[[2020,7,2]],"date-time":"2020-07-02T00:00:00Z","timestamp":1593648000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Public Health Nutr."],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S1368980020001044_as1\"><jats:title>Objective:<\/jats:title><jats:p>The aim of the current study was to evaluate the accuracy of the new software eAT24 used to assess dietary intake in the National Food, Nutrition and Physical Activity Survey (IAN-AF) against urinary biomarkers: N (nitrogen), K (potassium) and Na (sodium).<\/jats:p><\/jats:sec><jats:sec id=\"S1368980020001044_as2\"><jats:title>Design:<\/jats:title><jats:p>We conducted a cross-sectional study. Two non-consecutive 24-h dietary recalls (24-HDR) were applied, and a 24-h urine sample was collected. We examined differences between estimates from dietary and urine measures, Pearson correlation coefficients were calculated and the Bland\u2013Altman plots were drawn. Multiple linear regression was used to evaluate the factors associated with the difference between estimates.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980020001044_as3\"><jats:title>Setting:<\/jats:title><jats:p>Sub-sample from the Portuguese IAN-AF sampling frame.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980020001044_as4\"><jats:title>Participants:<\/jats:title><jats:p>Ninety-five adults (men and women) aged 18\u201384 years.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980020001044_as5\"><jats:title>Results:<\/jats:title><jats:p>The estimated intake calculated using the dietary recall data was lower than that estimated from urinary excretion for the three biomarkers studied (protein 94\u00b73 <jats:italic>v<\/jats:italic>. 100\u00b74 g\/d, K 3212 <jats:italic>v<\/jats:italic>. 3416 mg\/d and Na 3489 <jats:italic>v<\/jats:italic>. 4003 mg\/d). Considering 2 d of recall, the deattenuated correlation coefficients were 0\u00b733, 0\u00b764 and 0\u00b726 for protein, K and Na, respectively. For protein, differences between dietary and urinary estimates varied according to BMI (<jats:italic>\u03b2<\/jats:italic> = \u22121\u00b796, <jats:italic>P<\/jats:italic> = 0\u00b7017). The energy intake and 24-h urine volume were significantly associated with the difference between estimates for protein (<jats:italic>\u03b2<\/jats:italic> = 0\u00b703, <jats:italic>P<\/jats:italic> &lt; 0\u00b7001 and <jats:italic>\u03b2<\/jats:italic> = \u22120\u00b702, <jats:italic>P<\/jats:italic> = 0\u00b7002, respectively), K (<jats:italic>\u03b2<\/jats:italic> = 0\u00b771, <jats:italic>P<\/jats:italic> &lt; 0\u00b7001 and <jats:italic>\u03b2<\/jats:italic> = \u22120\u00b742, <jats:italic>P<\/jats:italic> = 0\u00b7040, respectively) and Na (<jats:italic>\u03b2<\/jats:italic> = 1\u00b755, <jats:italic>P<\/jats:italic> &lt; 0\u00b7001 and <jats:italic>\u03b2<\/jats:italic> = \u22120\u00b781, <jats:italic>P<\/jats:italic> = 0\u00b7011, respectively).<\/jats:p><\/jats:sec><jats:sec id=\"S1368980020001044_as6\"><jats:title>Conclusions:<\/jats:title><jats:p>The new software eAT24 performed well in estimating protein and K intakes, but lesser so in estimating Na intake, using two non-consecutive 24-HDR.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s1368980020001044","type":"journal-article","created":{"date-parts":[[2020,7,2]],"date-time":"2020-07-02T10:00:17Z","timestamp":1593684017000},"page":"3093-3103","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":33,"title":["Validation of a new software eAT24 used to assess dietary intake in the adult Portuguese population"],"prefix":"10.1017","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2212-0786","authenticated-orcid":false,"given":"Ana CL","family":"Goios","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5787-4871","authenticated-orcid":false,"given":"Milton","family":"Severo","sequence":"additional","affiliation":[]},{"given":"Amanda J","family":"Lloyd","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6521-980X","authenticated-orcid":false,"given":"V\u00e2nia PL","family":"Magalh\u00e3es","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1524-852X","authenticated-orcid":false,"given":"Carla","family":"Lopes","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8960-2160","authenticated-orcid":false,"given":"Duarte PM","family":"Torres","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2020,7,2]]},"reference":[{"key":"S1368980020001044_ref44","doi-asserted-by":"publisher","DOI":"10.1016\/j.numecd.2015.04.010"},{"key":"S1368980020001044_ref31","doi-asserted-by":"crossref","first-page":"591","DOI":"10.1093\/aje\/kwr140","article-title":"Evaluation and comparison of food records, recalls, and frequencies for energy and protein assessment by using recovery biomarkers","volume":"174","author":"Prentice","year":"2011","journal-title":"Am J Epidemiol"},{"key":"S1368980020001044_ref24","volume-title":"Estimation of Sodium Intake and Output: 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