Estimation of salt intake assessed by 24-h urinary sodium level among adults speaking different dialects from the Chaoshan region of southern China
- 29 April 2020
- journal article
- research article
- Published by Cambridge University Press (CUP) in Public Health Nutrition
- Vol. 24 (2), 290-298
- https://doi.org/10.1017/s136898001900507x
Abstract
Objective: Dietary salt intake may vary depending on different lifestyles. We aimed to estimate the different salt intakes and evaluate the knowledge and self-awareness about salt among people speaking the Teochew, Teochew–Hakka and Hakka dialects in the Chaoshan region of southern China. Design: The study followed a cluster sampling of residents in Chaoshan region. General characteristics, lifestyles, health status as well as knowledge and self-awareness related to salt intake were investigated using a questionnaire. Anthropometric variables as well as Na and K excretion in a 24-h urine collection were measured. Setting: Chaoshan region of China. Participants: Four hundred fifteen adults who spoke only one of these three dialects. Results: The salt intake of adults who spoke the Teochew, Teochew–Hakka and Hakka dialects was 7·19 (interquartile range (IQR) 5·29–10·17), 9·03 (IQR 6·62–11·54) and 10·12 (IQR 7·61–12·82) g/d, respectively, with significant differences between Teochew and Teochew–Hakka speakers and between Teochew and Hakka speakers (both P < 0·05). The Na:K ratio for adults who spoke the three dialects was 3·00 (IQR 2·00–4·11), 3·50 (IQR 2·64–4·82) and 4·52 (IQR 3·35–5·97), respectively, and differed significantly among the groups (all P < 0·05). Multiple linear regression analysis showed increased Na:K ratio associated with hypertension (β = 0·71, P = 0·043) in Hakka speakers. Knowledge and self-awareness about salt intake were poor in this population. Conclusions: Salt intake was closely related to lifestyles and was higher than the upper limit (5 g/d) recommended by the WHO in adults of Chaoshan, especially those speaking the Hakka dialect.This publication has 47 references indexed in Scilit:
- Factors Associated with a Low-sodium Diet: The Fourth Korean National Health and Nutrition Examination SurveyEpidemiology and Health, 2013
- High sodium:potassium intake ratio increases the risk for all-cause mortality: the REasons for Geographic And Racial Differences in Stroke (REGARDS) studyJournal of Nutritional Science, 2013
- Effect of longer term modest salt reduction on blood pressure: Cochrane systematic review and meta-analysis of randomised trialsBMJ, 2013
- Dietary Sodium Intake: Knowledge, Attitudes and Practices in Shandong Province, China, 2011PLOS ONE, 2013
- Association Between Sodium Intake and Change in Uric Acid, Urine Albumin Excretion, and the Risk of Developing HypertensionCirculation, 2012
- Association of Urinary Sodium/Potassium Ratio with Blood PressureClinical Journal of the American Society of Nephrology, 2012
- Inaccuracy of self-reported low sodium dietAmerican Journal of Human Biology, 2012
- Lack of Association between Self-reported Saltiness of Eating and Actual Salt IntakeKorean Journal of Family Medicine, 2012
- Tracing the origins of Hakka and Chaoshanese by mitochondrial DNA analysisAmerican Journal of Physical Anthropology, 2009
- 2007 Guidelines for the management of arterial hypertension: The Task Force for the Management of Arterial Hypertension of the European Society of Hypertension (ESH) and of the European Society of Cardiology (ESC)European Heart Journal, 2006