1Department of Nutritional Sciences,Faculty of Nutritional Sciences,Nakamura Gakuen University,5-7-1 Befu,Jonan-ku,Fukuoka 814-0198,Japan.
2Department of Health and Nutrition Sciences,Faculty of Health and Nutrition Sciences,Nishikyushu University,Saga,Japan.
Public Health Nutr. 2018 Aug;21(12):2164-2173. doi: 10.1017/S1368980018000095. Epub 2018 Feb 20.
The present study aimed to evaluate salt-reduction education using a self-monitoring urinary salt-excretion device.
Parallel, randomized trial involving two groups. The following parameters were checked at baseline and endline of the intervention: salt check sheet, eating behaviour questionnaire, 24 h home urine collection, blood pressure before and after urine collection.
The intervention group self-monitored urine salt excretion using a self-measuring device for 4 weeks. In the control group, urine salt excretion was measured, but the individuals were not informed of the result.
Seventy-eight individuals (control group, n 36; intervention group, n 42) collected two 24 h urine samples from a target population of 123 local resident volunteers. The samples were then analysed.
There were no differences in clinical background or related parameters between the two groups. The 24 h urinary Na:K ratio showed a significant decrease in the intervention group (-1·1) compared with the control group (-0·0; P=0·033). Blood pressure did not change in either group. The results of the salt check sheet did not change in the control group but were significantly lower in the intervention group. The score of the eating behaviour questionnaire did not change in the control group, but the intervention group showed a significant increase in eating behaviour stage.
Self-monitoring of urinary salt excretion helps to improve 24 h urinary Na:K, salt check sheet scores and stage of eating behaviour. Thus, usage of self-monitoring tools has an educational potential in salt intake reduction.
本研究旨在评估使用自我监测尿液排盐装置进行的减盐教育。
平行、随机试验，涉及两组。在干预的基线和终点检查以下参数：盐检查表、饮食行为问卷、24 h 家庭尿液收集、尿液收集前后的血压。
干预组使用自我测量装置自我监测尿液盐排泄 4 周。在对照组中，测量尿液盐排泄，但不向个人提供结果。
78 名个体（对照组，n=36；干预组，n=42）从 123 名当地志愿者目标人群中收集了两份 24 h 尿液样本。然后对样本进行了分析。
两组之间在临床背景或相关参数方面没有差异。干预组 24 h 尿钠钾比（-1.1）较对照组（-0.0；P=0.033）显著降低。两组血压均无变化。对照组盐检查表的结果没有变化，但干预组显著降低。对照组饮食行为问卷的评分没有变化，但干预组的饮食行为阶段显著增加。
自我监测尿液盐排泄有助于改善 24 h 尿钠钾、盐检查表评分和饮食行为阶段。因此，自我监测工具的使用在减少盐摄入方面具有教育潜力。
