【摘要】 目的调查中国近几年城乡和不同地区间出生体质量及相关影响因素,为婴幼儿健康保健提供依据。方法采用多阶段整群随机抽样方法,在江苏、黑龙江、内蒙古、甘肃及贵州5个省份抽取17 094例2006-2008年出生的婴幼儿,调查其出生体质量及相关影响因素。采用无序多分类资料多元Logistic回归进行多因素分析。结果低出生体质量率为2.85%,高出生体质量率为10.75%,农村低出生体质量率(4.05%)高于城市(1.94%),而城市高出生体质量率(12.20%)高于农村(8.83%)。不同地区间,甘肃临夏低出生体质量率最高(8.11%),内蒙古通辽高出生体质量率最高(15.70%)。体质量平均值为(3.344±0.486)kg,农村平均体质量(3.262±0.496)kg,比城市(3.406±0.469)kg低0.143 kg(95%CI:-0.158~-0.128)。不同地区间平均体质量不同(P<0.001),黑龙江哈尔滨最高(3.455 kg),甘肃临夏最低(2.991 kg),两者相差0.464 kg(95%CI:-0.494~-0.433)。经多元Logistic回归分析后发现,相对于甘肃临夏,其他地区婴幼儿低出生体质量儿发生风险降低64.7%~79.7%,其中内蒙古地区下降最多(79.7%);而婴幼儿高出生体质量发生风险增高,为甘肃临夏的5.357~9.715倍,内蒙古地区风险增高最多(9.715倍)。结论不同地区间低出生体质量及高出生体质量发生率存在差异,且这种差异独立于传统影响因素而存在。更多还原

【Abstract】 Objective To investigate birth weight and related influencing factors of infants among urban and rural areas and differe regions in China in recent years,provide evidence for health care of infants. Methods A multistage cluster random sampling method w used to select 17 094 infants born from 2006 to 2008 in Jiangsu,Heilongjiang,Inner Mongolia,Gansu and Guizhou,the information abo birth weight and related influencing factors were surveyed. Multivariate logistic regression model based on unordered categorical data was us for multivariate analysis. Results The incidence rate of low birth weight was 2. 85%,and the incidence rate of high birth weight w10. 75%. The incidence rate of low birth weight in rural areas was 4. 05%,which was higher than that in urban areas( 1. 94%),but the i cidence rate of high birth weight in urban areas( 12. 20%) was higher than that in rural areas( 8. 83%). In different areas,Linxia had t highest low birth weight rate( 8. 11%),and the incidence rate of high birth weight was the highest in Tongliao( 15. 70%). The overall a erage birth weight was( 3. 344±0. 486) kg,and the average birth weight in rural areas was( 3. 262±0. 496) kg,which was lower than th in urban areas [( 3. 406±0. 469) kg] by 0. 143 kg( 95% CI:-0. 158--0. 128). Average birth weight was different among different are( P<0. 001),which were the highest in Harbin( 3. 455 kg) and the lowest in Linxia( 2. 991 kg),the difference value was 0. 464 kg( 95%CI:-0. 494--0. 433). Multivariate logistic regression analysis showed that the risk of low birth weight in other areas decreased 64. 7%-79. 7% compared to Linxia,especially in Inner Mongolia( 79. 7%). The risk of high birth weight increased,which were 5. 3579. 715 times more than that in Linxia,especially in Inner Mongolia( 9. 715 times). Conclusion The incidence rates of low birth weig and high birth weight in different areas are different,and these differences are independent of traditional influencing factors.更多还原