1998年中国低出生体重发生率的分布特点及影响因素

Distribution and Risk Factors of Low Birth Weight Rate in China.

【目的】 了解中国低出生体重率的分布及影响因素。 【方法】 采用分层抽样方法 ,抽取 11省 44个市县 1998年 7～ 10月出生的活产儿 ,用统一的新生儿杆秤进行测量 ,精确度至 2 5克。 【结果】 ①中国低出生体重率的分布特点是女婴高于男婴 ;农村高于城市 ;边远地区高于内地 ;内地高于沿海。城市平均低出生体重发病率为 4.2 %。但贫困县及青海省低出生体重率分别为 12 .2 %、11.5 %。②本次调查低出生体重率的危险因素有多胎、多产次、孕周不足、高海拔、低国民生产总值及妇女贫血等。 【结论】 我国城市低出生体重发生率已接近发达国家水平 ,但边远地区及贫困县低出生体重率仍较高 。

Objective To explore distribution and risk factors oflow birth weight(LBW) rate in china. Method The national survey of LBW rate with stratified sampling was performed in 44 cities and counties of 11 provinces in China during July to October 1998.Measuring weight of all live birth infants was usedunified bar scales with the accuracy reading to 25g. Results ①The distribution features of LBW rate inChina were as follows:LBW rate in female was higher than in male infants;in rural was higher than in city,in remote areas was higher than in interior and in interior areas was higher than in Coastal areas.LBW rate for city was 4.2%,but forpool counties and Qinghai province were 12.2% and 11.5%,respectively.②The riskfactors of LBW rate included multiple fetus,multiple parturition,inadequate duration of pregnancy,high altitude,low GNP and maternal anemia,et al. Conclusion LBW rate of city in China was close to developed countries,but in remote areas and poor counties was higher.Interventionshould be developed in these areas.