ArticleHypertension research : official journal of the Japanese Society of Hypertension2016
Twenty-four-hour urinary sodium and potassium excretion and associated factors in Japanese secondary school students.
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13 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.
- The Science of Salt: A regularly updated systematic review of the implementation of salt reduction interventions (March-August 2016).Journal of clinical hypertension (Greenwich, Conn.) · 2017Pooled it
- Time to Consider Potassium Intake in Saudi: A Cross-Sectional Assessment Using 24 h Urinary Excretion.Nutrients · 2025Article
- Comparison between 24-hour diet recall and 24-hour urine collection for estimating sodium and potassium intakes and their ratio among Korean adults.Nutrition research and practice · 2023Article
- Estimation of daily sodium and potassium excretion from overnight urine of Japanese children and adolescents.Environmental health and preventive medicine · 2020Article
- A New Approach Is Needed to Evaluate 24-Hour Urinary Sodium Excretion Using Spot Urines: A Validation Study in a Chinese Child Population.Journal of the American Heart Association · 2020Article
- Sodium and potassium excretion predict increased depression in urban adolescents.Physiological reports · 2019Article
- Protein Intake Estimated from Brief-Type Self-Administered Diet History Questionnaire and Urinary Urea Nitrogen Level in Adolescents.Nutrients · 2019Article
- Marinobufagenin is related to elevated central and 24-h systolic blood pressures in young black women: the African-PREDICT Study.Hypertension research : official journal of the Japanese Society of Hypertension · 2018Article
- Placing Salt/Soy Sauce at Dining Tables and Out-Of-Home Behavior Are Related to Urinary Sodium Excretion in Japanese Secondary School Students.Nutrients · 2017Article
- A high salt diet inhibits obesity and delays puberty in the female rat.International journal of obesity (2005) · 2017Article
- Diurnal variation of urinary sodium-to-potassium ratio in free-living Japanese individuals.Hypertension research : official journal of the Japanese Society of Hypertension · 2017Article
- Twenty-four-hour urinary sodium and potassium excretion and associated factors in Japanese secondary school students: methodological issues that can lead to misinterpretation.Hypertension research : official journal of the Japanese Society of Hypertension · 2017Article
- Relationship between 24-h urine sodium/potassium ratio and central aortic systolic blood pressure in hypertensive patients.Hypertension research : official journal of the Japanese Society of Hypertension · 2017Article
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4 authors at 2 institutions in 1 country.
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Abstract
Data on the sodium and potassium intake using dietary records among schoolchildren are sorely lacking in the Japanese literature. Some evidence indicates that sodium and potassium intake has been correctly measured, but information concerning these associated factors is scarce. The 24-h urine samples and first morning voiding (overnight) samples were collected twice from 68 secondary schoolchildren in Suo-Oshima Town, Japan. Sodium, potassium and creatinine concentrations were analyzed. Body height and weight were measured, and menstruation and physical activity were assessed via questionnaires. We analyzed the 24-h samples with a >20-h collecting period and no missed voiding. The 24-h sodium excretion was 163.2±36.8 and 149.8±45.1 mmol per 24 h for the boys and girls, respectively. Considering daily habits and loss from sweat, intake was assumed to be 10.6±1.2 and 10.0±2.4 g per day for the boys and girls, respectively. The 24-h potassium excretion was 43.4±10.8 and 45.8±14.4 mmol per 24 h for the boys and girls, respectively. Estimated usual potassium intake was 2195±401 and 2330±630 mg per day for the boys and girls, respectively. Sodium excretion was associated with sodium and potassium concentrations in overnight urine samples and physical activity. Potassium excretion was associated with height and physical activity. We described daily sodium and potassium excretion in Japanese secondary schoolchildren. Excretion was associated more with physical activity than with bodyweight. Therefore, the estimation methods used in adults are not applicable for use in adolescents.
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