Validation Testing Demonstrates Efficacy of a 7-Day Fluid Record to Estimate Daily Water Intake in Adult Men and Women When Compared with Total Body Water Turnover Measurement
| Autor: | Evan C. Johnson, Lisa T. Jansen, Catalina Capitán-Jiménez, François Péronnet, Andy Mauromoustakos, J D Adams, Liliana Jimenez, Stavros A. Kavouras, Isabelle Guelinckx |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Adult Male medicine.medical_specialty Intraclass correlation Body water Drinking Medicine (miscellaneous) Diet Records Beverages 03 medical and health sciences Animal science Body Water Surveys and Questionnaires Medicine Humans Water intake Metabolic water Bland–Altman plot Deuterium Oxide Body fluid 030109 nutrition & dietetics Nutrition and Dietetics business.industry Reproducibility of Results Water Middle Aged Water-Electrolyte Balance Surgery Nutrition Assessment Female Self Report business Body mass index Food Analysis |
| Zdroj: | The Journal of nutrition. 147(10) |
| ISSN: | 1541-6100 |
| Popis: | Background: Mean daily water intake from fluids (WATER-FL) has proven to be difficult to measure because of a range of nonvalidated data collection techniques. Few questionnaires have been validated to estimate WATER-FL against self-reported diaries or urinary hydration markers, which may limit their objectivity.Objectives: The goals of this investigation were 1) to assess the validity of a 7-d fluid record (7dFLR) to measure WATER-FL (WATER-FL-7dFLR) through comparison with WATER-FL as calculated by measuring deuterium oxide (D2O) disappearance (WATER-FL-D2O), and 2) to evaluate the reliability of the 7dFLR in measuring WATER-FL.Methods: Participants [n = 96; 51% female; mean ± SD age: 41 ± 14 y; mean ± SD body mass index (in kg/m2): 26.2 ± 5.1] completed body water turnover analysis over 3 consecutive weeks. They completed the 7dFLR and food diaries during weeks 2 and 4 of the observation. The records were entered into nutritional software to determine the water content of all foods and fluids consumed. WATER-FL-D2O was calculated from water turnover (via the D2O dilution method), minus water from food and metabolic water. The agreement between the 2 methods of determining WATER-FL were compared according to a Bland-Altman plot at week 2. The test-retest reliability of 7dFLR between weeks 2 and 4 was assessed via intraclass correlation (ICC).Results: The mean ± SD difference between WATER-FL-7dFLR and WATER-FL-D2O was -131 ± 845 mL/d. In addition, no bias was observed (F[1,94] = 0.484; R2 = 0.006; P = 0.488). When comparing WATER-FL-7dFLR from weeks 2 and 4, no significant difference (mean ± SD difference: 71 ± 75 mL/d; t[79] = 0.954; P = 0.343) and an ICC of 0.85 (95% CI: 0.77, 0.90) was observed.Conclusions: The main findings of this study were that the use of the 7dFLR is an effective and reliable method to estimate WATER-FL in adults. This style of questionnaire may be extremely helpful for collecting water intake data for large-scale epidemiologic studies. |
| Databáze: | OpenAIRE |
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