The Effectiveness And Significance Of ‘high Salt Diet Identification Card' In Evaluating Salt Intake Of Hypertension Patients

Objective:Reducing salt in diet is very important for prevention and treatment of hypertension and related diseases.The purpose of this study is to explore scientific,effective and simple assessment of salt intake to guide clinical patients to limit salt intake.Methods:From October 2018 to October 2019,110 inpatients and 80 outpatients of hypertension were enrolled in the first department of cardiology of Shengjing hospital affiliated to China medical university respectively.General clinical data and biochemical indexes were recorded,salt test scores were calculated by using the "Identification Card for Patients with High Salt Diet".the correlation between daily salt intake and laboratory test results was evaluated,the score table was optimized,the salt intake of hypertension patients was further understood,and the relationship between salt intake and cardiovascular complications was evaluated.Results:1.There was a weak correlation between the existing salt test scores and salt intake(r=0.351,P=0.042).Four of the 13 questionnaire items tested were strongly correlated with salt intake(r=0.670,P=0.049).Salt intake was strongly correlated with the score(9 items)of the improved salt test table(r=0.641,P<0.01).The score of improved salt test and salt intake were more correlated in the group without hypertension treatment than receiving treatment(r=0.673,P<0.01vsr=0.585,P<0.01),which were higher in subgroup with glycosylated hemoglobin(Hb A1C)level?6.5%(12.2±3.54vs9.1±3.97,P=0.003;12.1±5.42vs9.6±4.67,P=0.047)and positively correlated with the severity of hypertension(P=0.046,P=0.031).Salt intake was higher in subgroup with fasting blood glucose(FBG)level ?7mmol/l(13.607±5.225vs9.742±4.771,P=0.031).Smoking habit is associated with higher salt intake(r=0.389,P=0.034).2.The left ventricular end diastolic diameter(LVDd)(50.0±6.01vs47.2±4.06,P=0.045)and left ventricular weight index(LVMI)(107.7±41.46vs91.8±28.64,P=0.042)in the high salt group were higher than those in the low salt group.The improved salt test score has a certain correlation with LVMI(r=0.216,P=0.042).3.The improved salt test table was applied to outpatients with hypertension,and the proportion of salt intake exceeding the standard was 72.43%.The proportion of excess salt intake in patients with heart failure(HF)and diabetes(DM)was88%(high salt 28%,medium salt 60%),92.3%(high salt 7.7%,medium salt84.6%)respectively.Conclusion:The improved "Identification Card for Patients with High Salt Diet" is helpful to assess the salt intake of hypertension patients and guide the diet management of patients.High salt diet is more common in patients with hypertension,especially in patients with HF and DM,which is related to abnormal glucose metabolism and left ventricular remodeling.