Explaining the 2001-02 infant mortality increase: data from the linked birth/infant death data set.
Explaining the 2001-02 infant mortality increase: data from the linked birth/infant death data set.
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解释 2001 年 2 月婴儿死亡率增加：来自关联出生/婴儿死亡数据集的数据。
DOI：
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发表时间：
2005
影响因子：
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通讯作者：
S. Ventura
中科院分区：
文献类型：
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作者：
M. MacDorman;J. Martin;T. J. Mathews;D. Hoyert;S. Ventura
美国的婴儿死亡率从2001年的每千名活产婴儿死亡6.8人上升到2002年的7.0人，这是40多年来的首次上升。从2001年到2002年，出生体重极低的婴儿以及早产儿和极早产儿的死亡率有所上升。尽管极低出生体重儿的婴儿死亡率有所上升，但2001年至2002年婴儿死亡率上升的主要原因是按出生体重划分的出生分布发生了变化，更具体地说，是出生体重低于750克（1磅10 1/2盎司）的婴儿增加了。出生时体重不足750克的婴儿大多数在出生后一年内死亡;因此，这些新生儿在婴儿总死亡率中所占比例不成比例。非西班牙裔白色、非西班牙裔黑人和西班牙裔妇女的出生体重低于750克的比例增加。大部分增加发生在20-34岁的母亲中。虽然多胞胎的比例不成比例，但体重不足750克的新生儿的增加大多发生在单胞胎中。对三种假设进行了评估，以评估其对小于750克出生率增加的可能影响：第一，出生或胎儿死亡报告的可能变化;第二，出生风险状况的可能变化;第三，妊娠医疗管理的可能变化。虽然这些因素中的每一个都可能促成了这一增加，但这些因素和其他因素的相对影响仍不清楚。需要进行更详细的研究，以进一步解释2001- 2002年婴儿死亡率上升的原因。
The U.S. infant mortality rate increased from 6.8 infant deaths per 1,000 live births in 2001 to 7.0 in 2002, the first increase in more than 40 years. From 2001 to 2002 infant mortality rates increased for very low birthweight infants as well as for preterm and very preterm infants. Although infant mortality rates for very low birthweight infants increased, most of the increase in the infant mortality rate from 2001 to 2002 was due to a change in the distribution of births by birthweight and, more specifically, to an increase in infants born weighing less than 750 grams (1 lb 10 1/2 oz). The majority of infants born weighing less than 750 grams die within the first year of life; thus, these births contribute disproportionately to the overall infant mortality rate. Increases in births at less than 750 grams occurred for non-Hispanic white, non-Hispanic black, and Hispanic women. Most of the increase occurred among mothers 20-34 years of age. Although multiple births contributed disproportionately, most of the increase in births at less than 750 grams occurred among singletons. Three hypotheses were evaluated to assess their possible impact on the increase in less than 750-gram births: first, possible changes in the reporting of births or fetal deaths; second, possible changes in the risk profile of births; and third, possible changes in medical management of pregnancy. Although each of these factors may have contributed to the increase, the relative effects of these and other factors remain unclear. More-detailed studies are needed to further explain the 2001-02 infant mortality increase.
影响因子：
9.8
作者：
Sibai, BM;Caritis, SN;Roberts, J
通讯作者：
Roberts, J
影响因子：
9.8
作者：
Hnat, MD;Sibai, BM;Dombrowski, M
通讯作者：
Dombrowski, M
影响因子：
158.5
作者：
FRASER, AM;BROCKERT, JE;WARD, RH
通讯作者：
WARD, RH