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目的了解原发性高血压高发区中学生高血压患病情况,探索中学生原发性高血压与血清铁的关系。方法在辽宁省彰武县随机抽取1640名中学生,采用统一调查表调查中学生血压分布情况及高血压相关因素。结果共检出高血压患者122例,检出率为7.44%。女生平均舒张压水平均高于男生,差异有统计学意义(t=5.807,P<0.05)。高血压组血清铁水平高于正常组,但差异无统计学意义(t=1.965,P>0.05)。高水平血清铁的学生患原发性高血压的危险性是低水平血清铁学生的1.733倍(OR=1.733,95%CI=1.081～2.777),男生高水平血清铁对收缩压、舒张压均有影响(OR=4.455,95%CI=1.871～10.609;OR=3.383,95%CI=1.637～6.994)。收缩压与血清铁之间呈正相关关系(r=0.053,P<0.031)。结论高血清铁水平可能是中学生原发性高血压的危险因素,对男生影响更明显。
Objective To investigate the prevalence of hypertension among middle school students with essential hypertension and to explore the relationship between essential hypertension and serum iron in middle school students. Methods A total of 1640 middle school students were randomly selected in Zhangwu County of Liaoning Province. The questionnaire was used to investigate the distribution of blood pressure and related factors of hypertension in middle school students. Results A total of 122 cases of hypertension were detected, the detection rate was 7.44%. The mean diastolic blood pressure of girls was higher than that of boys, the difference was statistically significant (t = 5.807, P <0.05). The level of serum iron in hypertension group was higher than that in normal group, but the difference was not statistically significant (t = 1.965, P> 0.05). The risk of developing primary hypertension in high-grade serum iron students was 1.733 times that of low-grade serum iron students (OR = 1.733, 95% CI = 1.081-2.777). High levels of serum iron in boys were associated with systolic and diastolic blood pressure (OR = 4.455, 95% CI = 1.871-10.609; OR = 3.383, 95% CI = 1.637-6.994). Systolic blood pressure and serum iron was positively correlated (r = 0.053, P <0.031). Conclusions High serum iron level may be the risk factor of secondary hypertension in middle school students, and the effect on boys is more obvious.