Trends of Abnormal Birthweight among Full-term Infants in Newfoundland and Labrador
Trends of Abnormal Birthweight among Full-term Infants in Newfoundland and Labrador
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DOI：
10.1007/bf03404359
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发表时间：
2010-03-01
影响因子：
4.3
通讯作者：
Audas, Richard P.
中科院分区：
文献类型：
--
作者：
Edwards, Nicole M.;Audas, Richard P.
目的：本研究的目的是调查观察到的出生体重趋势是否伴随着母亲社会人口学特征的变化，包括年龄、婚姻状况和教育程度。方法：我们对1992年至2005年在加拿大纽芬兰和拉布拉多出生的独生子女进行了一项基于人口的研究(N=66,638)。使用两个人口比例的大样本显著性检验来检验1992-95和2002-05年间平均出生体重、低出生体重儿和高出生体重儿的比例以及母亲社会人口学特征的差异是否具有统计学意义。卡方检验用于检验出生体重组与母亲年龄、教育程度和婚姻状况之间的关系。结果：在66,638名婴儿中，54,256名(81.4%)出生在正常出生体重范围(2500-4000克)，11,305名(17.0%)出生在高出生体重(>；4000克)，1,077名(1.6%)出生在低出生体重(>；4000克)。
Objectives: The objective of this study was to investigate whether any observed trends in birthweight are accompanied by changes in maternal socio-demographic characteristics, including age, marital status, and education.Methods: We conducted a population-based study of term singletons born in Newfoundland and Labrador, Canada, between 1992 and 2005 (N=66,638). Large-sample significance tests for two population proportions were used to test whether differences in mean birthweight, the proportion of low and high birthweight infants, and differences in maternal socio-demographic characteristics between 1992-95 and 2002-05 were statistically significant. Chi-square tests were used to test for associations between birthweight group and maternal age, education and marital status. Multivariate logistic regression was used to examine the interaction of these effects across time periods.Results: Of the 66,638 infants included in the study, 54,256 (81.4%) were born in the normal birthweight range (2500-4000 grams) while 11,305 (17.0%) were high birthweight (>4000 grams) and 1,077 (1.6%) were low birthweight (