Author:
Du Xiaofu,Fang Le,Guo Jing,Chen Xiangyu,Su Shuoci,Zhang Jie
Abstract
AbstractSpot urine (SU) collection is a convenient method commonly used for sodium estimation, but its validity in predicting 24-h urinary sodium (24-hUNa) excretion has not been thoroughly evaluated among the general population. The aim of this study was to comprehensively assess the validity of eight existing methods in predicting 24-hUNa excretion by using SU samples among Chinese adults. We analyzed 1424 representative individuals aged 18 to 69 years. We compared the measured and estimated measurements of 24-hUNa at the population level by examining bias, the correlation, intraclass correlation coefficients (ICCs), receiver operating characteristic (ROC) curves and Bland–Altman plots and analyzed the relative and absolute differences and misclassification at the individual level. The bias for all methods was significant (all p < 0.001), among which the smallest bias was − 7.9 mmol for the Toft formula and the largest bias was − 53.8 mmol for the Mage formula. Correlation coefficients were all less than 0.380, all formulas exhibited an area under the ROC curve below 0.683, and the Bland–Altman plots indicated slightly high dispersion of the estimation biases at higher sodium levels regardless of the formula. The proportions of relative differences > 40% for the eight methods were all over one-third, the proportions of absolute differences > 51.3 mmol/24 h (3 g/day NaCl) were all over 40%, and the misclassification rates (7, 10, and 13 g/day NaCl as cutoff points) were all over 65%. Caution remains due to poor validity between estimated and actual measurements when using the eight formulas to obtain a plausible estimation for surveillance of the Chinese population sodium excretion, and the results do not support the application of SU to estimate sodium intake at the individual level due to its poor performance with respect to classification.
Publisher
Springer Science and Business Media LLC
Reference53 articles.
1. Wang, Z. et al. Status of hypertension in China: Results from the China hypertension survey, 2012–2015. Circulation 137, 2344–2356 (2018).
2. Abubakar, I., Tillmann, T. & Banerjee, A. Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990–2013: A systematic analysis for the Global Burden of Disease Study 2013. Lancet 385, 117–171 (2015).
3. Naghavi, M. et al. Global, regional, and national age-sex specific mortality for 264 causes of death, 1980–2016: A systematic analysis for the Global Burden of Disease Study 2016. Lancet 390, 1151–1210 (2017).
4. China State Council Information Office. The Health and Family Planning Commission and others introduced the “Report on Nutrition and Chronic Disease Status of Chinese Residents (2015)” (accessed 23 Dec 2020). http://www.gov.cn/xinwen/2015-06/30/content_2887030.htm
5. World Health Organization. Global Status Report on Noncommunicable Diseases 2010 (World Health Organization, 2016).
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