Trends in the proportion of low birth weight from 1994 to 2004 in Rio Grande do Sul State, Brazil: a multilevel analysis
Trends in the proportion of low birth weight from 1994 to 2004 in Rio Grande do Sul State, Brazil: a multilevel analysis
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DOI：
10.1590/s0102-311x2011000200004
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发表时间：
2011-02-01
期刊：
影响因子：
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通讯作者：
Riboldi, João
中科院分区：
文献类型：
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作者：
Moraes, Anaelena Bragança de;Zanini, Roselaine Ruviaro;Riboldi, João
这项纵向生态学研究的目的是通过面板数据分析和多水平线性回归（两个水平：按微区域和按年时间）来分析1994年至2004年巴西南大德州里约热内卢低出生体重比例的趋势，以估计与低出生体重相关的危险因素。低出生体重的比例以每年1.2%的速度增长，多层次模型显示，这一比例在微观区域之间存在差异，并随着时间的推移而增加，随着早产儿比例的增加，随着婴儿死亡率的增加，随着剖宫产率的增加。在微区域中，低出生体重比例与城市化率和全国统一卫生系统支出呈正相关，与劳动力参与率呈负相关。根据多层模型，低出生体重比例的变化大部分是由于新生儿母亲居住微区域的影响。
The aim of this longitudinal ecological study was to analyze the trend in the proportion of low birth weight in Rio Grande do Sul State, Brazil, from 1994 to 2004 by panel data analysis and multilevel linear regression (two levels: by micro-region and time in years) to estimate risk factors associated with low birth weight. The proportion of low birth weight increased by 1.2% per year, and the multilevel model showed that the proportions differed between the micro-regions and increased over time, with the increase in the percentage of premature newborns, with the increase in the infant mortality rate, and with the increase in the cesarean rate. Among the micro-regions, the proportions of low birth weight varied positively with the urbanization rate and expenditures in the Unified National Health System and negatively with rate of participation in the workforce. According to the multilevel model, most of the variation in proportions of low birth weight was due to the effects of the micro-region of residence of the newborn's mother.