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During the congress, E-Posters will be accessible to all participants on the congress website 24/7, as well as in the E-poster stations in the congress center.
Preparing your E-Poster
Please review the E-Poster format requirements carefully when preparing your E-Poster. Should your E-Poster not meet the mentioned requirements, it may not be displayed as described above.
E-Poster Submission Deadline
Please prepare and upload your E-Poster no later than March 14, 2026 11.59PM CET. After this date, you will no longer be able to prepare and upload your E-poster and it will not be displayed and accessible on the congress website.
Please follow the instructions below to input your abstract title.
Abstract titles should be brief and reflect the content of the abstract.
Excessive salt intake contributes to hypertension, heart failure, and chronic kidney disease (CKD). Assessing individual dietary salt intake is essential for promoting awareness of salt reduction. We previously developed a self-administered salt intake questionnaire that estimates salt intake based on the frequency of consumption of specific dishes and food groups, showing a strong correlation with 24-hour urine collection (r = 0.43). However, the correlation coefficient was not considered sufficient. In the present study, we developed a revised version that reassessed the salt content of specific dishes and food groups and adjusted the estimated salt intake per meal based on body weight (BW), since dietary intake per meal differs depending on BW.
This multicenter study included 169 outpatients with CKD from Hamamatsu University Hospital and five affiliated hospitals. The self-administered salt intake questionnaire evaluated the weekly consumption frequency of four main dishes and three side dishes with high salt content, and estimates daily salt intake by summing the added salt from each dish and food group. We revised the estimated salt content for each food groups in the new questionnaire, based on partial correlations between the estimated salt intake from the existing questionnaire and that from 24-hour urine collection. Additionally, the estimated salt intake is adjusted for BW to account for differences in salt intake due to body composition. By multiplying the estimated salt intake based on the new salt intake questionnaire by BW and a regression-derived adjustment factor of 0.0133, we obtained an adjusted estimate of salt intake that reflects the quantity of food consumed. Estimated daily salt intake was compared with that calculated from 24-hour urinary sodium excretion, considered the gold standard.
The estimated daily salt intake based on the new questionnaire showed a significant correlation with salt intake estimated from 24-hour urine collection (r = 0.43, p < 0.001), which was stronger than that of the previous questionnaire (r = 0.36, p < 0.001). Subgroup analyses demonstrated higher correlations in women (r = 0.47) than in men (r = 0.33), and in participants aged 65 years or older (r = 0.43) compared with those younger than 65 years (r = 0.35).
The new salt intake questionnaire provides a more accurate estimate of dietary salt intake due to reassessment of salt content and adjustment for BW. The stronger correlations observed among women and older adults may reflect greater dietary regularity and health consciousness in these populations. The new salt questionnaire not only enables estimation of total salt intake but also helps individuals recognize specific dishes or food groups contributing to excessive salt consumption, suggesting its potential utility as a dietary guidance tool. Facilitating easy self-assessment of salt intake may increase awareness of dietary salt restriction, potentially contributing to the prevention and management of hypertension and CKD.
