Urquia Marcelo L, Frank John W, Glazier Richard H, Moineddin Rahim
Department of Public Health Sciences, University of Toronto.
Health Rep. 2007 Nov;18(4):21-30.
This article examines differences in birth outcomes by neighbourhood income and recent immigration for singleton live births in Toronto, Ontario.
The birth data were extracted from hospital discharge abstracts compiled by the Canadian Institute for Health Information.
A population-based cross-sectional study of 143,030 singleton live births to mothers residing in Toronto, Ontario from 1 April 1996 through 31 March 2001 was conducted. Neighbourhood income quintiles of births were constructed after ranking census tracts according to the proportion of their population below Statistics Canada's low-income cutoffs. Logistic regression was used to estimate odds ratios for the effects of neighbourhood income quintile and recent immigration on preterm birth, low birthweight and full-term low birthweight, adjusted for infant sex and maternal age.
Low neighbourhood income was associated with a moderately higher risk of preterm birth, low birthweight, and full-term low birthweight. The neighbourhood income gradient was less pronounced among recent immigrants compared with longer-term residents. Recent immigration was associated with a lower risk of preterm birth, but a higher risk of low birthweight and full-term low birthweight.
本文研究安大略省多伦多市单胎活产儿的出生结局在社区收入和近期移民情况方面的差异。
出生数据取自加拿大卫生信息研究所汇编的医院出院摘要。
对1996年4月1日至2001年3月31日期间居住在安大略省多伦多市的母亲所生育的143,030例单胎活产儿进行了一项基于人群的横断面研究。根据人口普查区中低于加拿大统计局低收入临界值的人口比例对普查区进行排名后，构建了出生时的社区收入五分位数。采用逻辑回归来估计社区收入五分位数和近期移民对早产、低出生体重和足月低出生体重的影响的比值比，并对婴儿性别和母亲年龄进行了调整。
社区低收入与早产、低出生体重和足月低出生体重的风险适度升高相关。与长期居民相比，近期移民中的社区收入梯度不太明显。近期移民与早产风险较低相关，但与低出生体重和足月低出生体重风险较高相关。
