The prevalence of hypertension in different water iodine areas of Shanxi Province in 2016 / 中华地方病学杂志

ABSTRACT

Objective To investigate the prevalence of hypertension in adults in different water iodine areas and to explore the epidemiological association between high iodine intake in drinking water and hypertension.Methods In 2016,Xiwenzhuang Village of Taiyuan City as an appropriate-indine area,Gaoche Village and Maxi Village of Wenshui County were selected in Shanxi Province as a high-iodine area and a low-iodine area,respectively,and conducted questionnaire surveys,clinical hypertension examinations,and determination of urinary iodine levels of residents aged 18 to 65 years.Results A total of 853 people were investigated,including 283 in high-iodine area,258 in appropriate-indine area and 312 in low-iodine area.The medians urinary iodine in high,appropriate and low iodine areas were 423.0,218.5 and 126.6 μg/L,respectively,and the difference was statistically significant (H =289.7,P ＜ 0.05).The detection rates of hypertension in adults with high,appropriate and low iodine levels were 38.9％ (110/283),41.9％ (108/258) and 34.0％ (106/312),respectively,the difference was not significant statistically between the three groups (x2 =3.87,P ＞ 0.05).There was no significant difference in the detection rate of hypertension among males [45.9％(62/135),50.0％ (53/106),40.8％ (53/130)] in different areas (x2 =2.04,P ＞0.05),and no significant difference in the detection rate of hypertension among females [32.4％ (48/148),36.2％ (55/152),29.1％ (53/182),x2 =1.89,P ＞ 0.05];The difference between the three groups was not significant statistically in the detection rate of hypertension both among the 18-＜ 45 years group and 45-65 years group (x2 =1.22,5.66,P ＞ 0.05).Conclusion Drinking water with excess iodine might not increase the risk of hypertension in adults in Shanxi Province.