Consumption of high salty food among primary and middle school teachers in four cities of China and its influencing factors

Objective To analyze the status of the consumption of high salty food among primary and middle school teachers in Shenyang,Wuhan,Chengdu and Guangzhou City,and then to provide basic data and scientific evidence for interventions of salt reduction.Methods With stratified random cluster sampling,a total of 2 518 primary and middle school teachers were selected from four cities of China to have questionnarie.Logistic regression model was used to explore the influences of factors,such as gender,educational level,cirriculum,family income,and the awareness of knowledge of high salty food,on high salty food consumption among school teachers.Results In the past three months,the proportion of school teachers who consumed potato chips,instant noodles,processed meat,salted nuts,and preserved fruits (over one times a week) was 11.2%,9.5%,18.0%,26.8%,13.4%.As shown in multivariate Logistic regression analysis,the OR(95%CI) of teachers over 40 years old,having higher family income,knowing salt reference intake,using nutrition labeling,consumption of high salty food among teachers in Guangzhou/ Chengdu/Wuhan were 0.687(0.577-0.819),2.988(1.786-4.999),0.760(0.635-0.910),0.720(0.578-0.896),0.500(0.393-0.636),0.689(0.538-0.883) and 0.561(0.442-0.711),respectively.All the facors greatly affected the consumption of high salty food among primary and secondary school teachers(P<0.05).Conclusion There still existed higher frequency of consumption of high salty food among school teachers.Nutrition interventions about salt and health should be conducted to reduce their salt intake,so as to prevent and control hypertension.