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ID:15129237
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时间:2018-08-01
《低出生体重与孕期血红蛋白浓度的关系》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、低出生体重与孕期血红蛋白浓度的关系作者:王娟任爱国叶荣伟郑俊池李松刘建蒙李竹【摘要】目的分析低出生体重(LBW)与孕期不同阶段血红蛋白(Hb)浓度之间的关系。方法比较江苏省和浙江省4个县市1995~2000年102489例孕妇孕期各阶段贫血和非贫血LBW儿的发生率,以及不同Hb浓度LBW儿的发生率;用Logistic回归控制年龄、文化程度、孕次、妊娠高血压疾病的影响,分析孕期各阶段Hb与LBW的关联程度。结果孕早期贫血LBW儿发生率高于非贫血,孕晚期贫血LBW儿发生率低于非贫血,差异有统计学意义(P<0.0
2、01);孕早期Hb浓度与LBW的风险呈线性趋势,Hb浓度降低,LBW的风险增加;孕中期低Hb浓度的孕妇LBW儿的发生率较高,高Hb浓度孕妇LBW儿的风险没有明显增加或降低趋势;孕晚期Hb浓度与LBW的风险呈“U”形趋势,高Hb和低Hb浓度都与LBW的风险增加有关。结论孕期Hb浓度与LBW的关系随孕期的不同阶段而不同;孕早期贫血、孕晚期Hb浓度过高或过低均与LBW的风险增加有关。【关键词】贫血;低出生体重;妊娠;血红蛋白;妊娠结局 【Abstract】ObjectiveToexaminetheassociatio
3、nbetweenmaternalhemoglobin(Hb)concentrationduringpregnancyandtheriskoflowbirthweight(LBW)inaChinesepopulation.Methods13SubjectswerewomenwhodeliveredinfourcitiesorcountiesinJiangsuProvinceandZhejiangProvince,China,duringtheperiodof1995-2000.IncidenceofLBWwasca
4、lculatedandcomparedamonggroupsofwomenwithdifferentHbconcentrationsinthreedifferenttrimesters.MultiplelogisticregressionanalysiswasusedtoaddresstherelationshipbetweenHbconcentrationandtheriskofLBWwhilecontrollingforpotentialconfoundingfactors.ResultsAnemiainth
5、efirsttrimesterwasassociatedwithanincreasedriskofLBW,andalineartrendwasfoundbetweenfirst-trimesterHbconcentrationandtheriskofLBW;whereas,aU-shapedrelationshipwasobservedbetweenthird-trimesterHbconcentrationandtheriskofLBW:bothsevereanemiaandhighHbconcentratio
6、ninthethirdtrimesterwereassociatedwithanelevatedriskofLBW.Theresultsforthesecondtrimesterpresentedasatransitionalstatebetweenthefirstandthethirdtrimester.ConclusionTheassociationbetweenHbconcentrationandtheriskofLBWdiffersbytrimesters:whileanemiaorlowHbconcen
7、trationinthefirsttrimesterincreasestheriskofLBW,bothsevereanemiaandhighHbconcentrationinthethirdtrimesterincreasetheriskofLBW. 【Keywords】Anemia,Lowbirthweight,Pregnancy,13Hemoglobin,Pregnancyoutcome 低出生体重(lowbirthweight,LBW)是常见的不良妊娠结局,可显著增加新生儿疾病的发病率和死亡率[1],
8、并对今后儿童的体格、智力和运动发育有着长期的消极作用[2]。贫血是孕期最常见的并发症之一,贫血孕妇LBW的风险为非贫血孕妇的3~4倍[3~5]。另外也有研究认为,贫血孕妇及胎儿自身的内分泌调节存在代偿作用,孕期贫血不会增加LBW风险[6,7]。孕期Hb浓度与LBW风险的研究结论亦存在差异,有研究显示,Hb浓度与LBW风险呈“U”形关系,高Hb浓度与低Hb浓度均会增加LBW
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