Mortality Rates for Extremely Low Birth Weight Infants Born in Japan in 2005

被引:165
作者
Itabashi, Kazuo [1 ]
Horiuchi, Takeshi [2 ]
Kusuda, Satoshi [3 ]
Kabe, Kazuhiko [4 ]
Itani, Yasufumi [5 ]
Nakamura, Takashi [6 ]
Fujimura, Masanori [7 ,8 ]
Matsuo, Masafumi [9 ]
机构
[1] Showa Univ, Sch Med, Dept Pediat, Shinagawa Ku, Tokyo 1428666, Japan
[2] St Marianna Univ, Sch Med, Dept Pediat, Kawasaki, Kanagawa 213, Japan
[3] Tokyo Womens Med Univ, Dept Neonatol, Maternal & Perinatal Ctr, Tokyo, Japan
[4] Aiiku Hosp, Dept Neonatol, Maternal & Child Hlth Ctr, Tokyo, Japan
[5] Kanagawa Childrens Med Ctr, Dept Neonatol, Yokohama, Kanagawa, Japan
[6] Taisyo Univ, Dept Human Welf, Fac Human Sci, Tokyo, Japan
[7] Osaka Med Ctr, Dept Neonatol, Osaka, Japan
[8] Osaka Med Ctr, Res Inst Maternal & Child Hlth, Osaka, Japan
[9] Kobe Univ, Sch Med, Dept Pediat, Kobe, Hyogo 650, Japan
关键词
infant; extremely low birth weight; mortality rates; national survey; EXTREMELY PREMATURE-INFANTS; RISK-FACTORS; EARLY DEATH; NETWORK; CARE;
D O I
10.1542/peds.2008-0763
中图分类号
R72 [儿科学];
学科分类号
100202 ;
摘要
OBJECTIVE. Our goal was to investigate the neonatal mortality rate and the mortality rate during the NICU stay for extremely low birth weight infants born in Japan in 2005. METHODS. The Committee of Neonatal Medicine of the Japan Pediatric Society retrospectively surveyed the deaths of extremely low birth weight infants born and hospitalized between January 1 and December 31, 2005. From 297 institutions in Japan, data on 3065 extremely low birth weight infants, which represented 98.4% of those reported in the maternal and health statistics of Japan in 2005, were collected. RESULTS. The neonatal mortality rate and the mortality rate during the NICU stay were 13.0% and 17.0%, respectively, which were lower than 17.7% and 21.5% in the survey in 2000. The neonatal mortality rates and the mortality rates during the NICU stay were 53.3% and 67.7% in the <400-g birth weight group ( n = 62), 42.1% and 53.5% in the 400- to 499-g birth weight group (n = 159), 22.2% and 27.7% in the 500- to 599-g birth weight group (n = 387), 16.8% and 22.2% in the 600- to 699-g birth weight group (n = 537), 9.4% and 12.7% in the 700- to 799-g birth weight group (n = 574), 6.3% and 9.1% in the 800- to 899-g birth weight group (n = 649), and 3.9% and 5.3% in the 900- to 999-g birth weight group (n = 697), respectively. The factors involved in the deaths of extremely low birth weight infants included lower gestational age, lower birth weight, male gender, multiple birth, institutions in which < 10 extremely low birth weight infants were admitted per year, and no prenatal maternal transfer. CONCLUSION. The mortality rates of extremely low birth weight infants who were born in 2005 demonstrated definite improvement. Pediatrics 2009; 123: 445-450
引用
收藏
页码:445 / 450
页数:6
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