Kenichiro Yasutake1, Emiko Miyoshi1, Yukiko Misumi2, Tomomi Kajiyama1, Tamami Fukuda3, Taeko Ishii4, Ririko Moriguchi1, Yusuke Murata5, Kenji Ohe5, Munechika Enjoji5, Takuya Tsuchihashi6. 1. 1Department of Nutritional Sciences,Faculty of Nutritional Sciences,Nakamura Gakuen University,5-7-1 Befu,Jonan-ku,Fukuoka 814-0198,Japan. 2. 2Department of Health and Nutrition Sciences,Faculty of Health and Nutrition Sciences,Nishikyushu University,Saga,Japan. 3. 3Fukuoka Clinic,TOPPAN Group Health Insurance Society,Fukuoka,Japan. 4. 4Department of Food Design,Kurume Shin-ai Women's College,Kurume,Japan. 5. 5Health Care Center,Fukuoka University,Fukuoka,Japan. 6. 6Hypertension Center,Steel Memorial Yawata Hospital,Kitakyushu,Japan.
Abstract
OBJECTIVE: The present study aimed to evaluate salt-reduction education using a self-monitoring urinary salt-excretion device. DESIGN: 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. SETTING: 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. SUBJECTS: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. RESULTS: 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. CONCLUSIONS: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.
RCT Entities:
OBJECTIVE: The present study aimed to evaluate salt-reduction education using a self-monitoring urinary salt-excretion device. DESIGN: 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. SETTING: 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. SUBJECTS: 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. RESULTS: 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. CONCLUSIONS: 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.
Entities:
Keywords:
Eating behaviour; Hypertension; Salt intake; Self-monitoring; Urinary salt excretion