女大学生月经失血量与机体铁营养状况评价

Menstrual blood loss and iron nutritional status in female undergraduate students

目的定量研究女大学生月经失血量,并对其铁营养状况进行评价。方法用简单随机抽样的方法抽取30名在校女大学生,用调查表收集一般信息。通过称量卫生巾在使用前后的重量,计算收集到卫生巾上的失血量,估计未收集到卫生巾上的失血量,两者相加得月经周期失血量。常规方法测量血中血红蛋白浓度、血清游离原卟啉与血清铁蛋白含量。采用双变量相关分析法分析月经失血量和铁营养状况之间的关系。结果女大学生平均月经周期持续天数为(4.5±1.4)天,平均失血量为(59.3±25.1)g,范围为24～110g。血清铁蛋白、游离原卟啉、血红蛋白的平均含量分别为(25.13±14.33)ng/ml、(0.06±0.01)μg/ml和(131.61±9.76)g/L,22.58%的女大学生处于铁减少期,无临床贫血者。月经失血量与血清铁蛋白含量呈负相关。结论女大学生月经失血量有很大的个体差异,临床上无贫血并不意味着铁营养状况良好,血清铁蛋白是反映机体铁营养状况的敏感指标。

Objective To study menstrual blood loss and iron nutritional status in female undergraduate students.Methods Thirty female undergraduate students were selected by simple random sampling method,the general information were investigated by questionnaire.The menstrual blood was collected by weighing every pad before and after use,and the blood not collected in pads was estimated.Hemoglobin,serum free protoporphyrin and serum ferritin were measured by regular method.The relationship between menstrual blood loss and iron nutritional status was analyzed by bivariate correlation statistics.Results The average menstrual period was（4.5 ± 1.4） days.The average menstrual blood loss was（59.3 ± 25.1） g,in a range of 24g to 110g.The average content of serum ferritin,free protoporphyrin and hemoglobin was（25.13 ± 14.33） ng/ml,（0.06 ± 0.01） μg/ml and（131.61 ± 9.76）g/L respectively.There were 22.58% of subjects in iron reduction period（serum ferritin 12 ng/ml）.The menstrual blood loss was negatively correlated with serum ferritin.Conclusion The amount of menstrual blood loss among individual students was significantly different.No clinical anemia does not mean in a good iron nutritional status.Serum ferritin is a sensitive indicator for iron nutritional status.