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目的了解现阶段城市女性在孕中晚期膳食营养素摄入情况,为孕妇合理膳食提供科学依据。方法采用现况调查的方法,调查于2012-2014年在北京市某三甲医院建档产检并生产的孕妇172例,采用称重法分别于孕16、20、24、28、32、36周由调查对象填写连续3 d膳食摄入记录。结果本次调查提示北京城镇孕妇每日膳食营养素总体摄入状况有所好转。但总能量摄入略为不足,孕中期维生素B1摄入量偏低;维生素A及维生素E超标;矿物质中以硒的摄入量最低,铁、钙的摄入明显增加,但存在阶段性摄入不足;三大供能营养素的构成比中脂肪供能比较高。结论与近年来全国调查结果相比较,本次调查者的膳食营养素摄入有较大程度的改善,但仍然存在能量及部分微量营养素摄入不足的问题。
Objective To understand the current status of urban women in the second trimester of dietary intake of nutrients for pregnant women to provide a scientific basis for a reasonable diet. Methods The status quo survey method was used to investigate 172 cases of pregnant women who were quarantined and produced in a top three hospital in Beijing from 2012 to 2014. Weighing method was used to measure the pregnant women at 16,20,24,28,32 and 36 weeks respectively Subjects filled in for 3 consecutive days of dietary intake records. Results The survey suggested that the daily intake of dietary nutrients in pregnant women in Beijing cities improved somewhat. But the total energy intake slightly less than the intake of vitamin B1 in the middle of pregnancy is too low; vitamin A and vitamin E exceed the standard; the lowest intake of selenium minerals, iron and calcium intake increased significantly, but there are phased photo Inadequate; the composition of the three energy nutrients than fat in the relatively high. Conclusions Compared with the results of the national survey in recent years, the intake of dietary nutrients by this investigator has been greatly improved. However, there is still a problem of insufficient energy and some micronutrient intake.