科学は愛ですコミュの未婚での出産がアメリカで記録更新

（サイエンス英語版３月２０日配信分）
Source: US News
http://health. usnews.com/ articles/ health/healthday /2009/03/ 18/
unmarried- childbirths- in-us-reach- record-levels. html

アメリカ国内において、未婚の母の数がますます増加しているとアメリカ政府が発表した。
2006年から2007年にかけて、出生数、出生率、未婚の女性から生まれてくる子供
の割合のどれもが３−５％増加し、2007年には1,714,643人の赤ちゃんが未婚の
女性に生まれたが、それはアメリカでの全出生数の39.7％に相当する。

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ラエルのコメント：
子供を持つに際にも、人々がますます結婚を拒絶するように
なっていることを証明するすばらしい傾向ですね。


Unmarried Childbirths in U.S. Reach Record Levels
Government report also shows Cesarean deliveries hitting new highs
Posted March 18, 2009
WEDNESDAY, March 18 (HealthDay News) -- The number of unmarried women
who are having babies has reached a record level in the United States,
and Cesarean delivery rates continue to hit new highs, a government
report shows.

The total number of births, birth rate and proportion of births to
unmarried women all increased by 3 percent to 5 percent from 2006 to
2007. The estimated 1,714,643 babies born to unmarried women in 2007
accounted for 39.7 percent of all births in the country.

The total number of births rose to 4,317,119 in 2007, the highest
number of births ever registered in the United States. The Cesarean
delivery rate increased by 2 percent, to 31.8 percent, in 2007 -- the
eleventh consecutive year of increase and another record high for the
nation, said the report from the National Center for Health Statistics
at the U.S. Centers for Disease Control and Prevention.

Among the other findings:

The birth rate for teens rose 1 percent between 2006 and 2007, from
41.9 to 42.5 births per 1,000 females aged 15-19.
Birth rates for females aged 10-14 remained unchanged but increased
for women in their 20s, 30s and early 40s.
The U.S. fertility rate increased 1 percent in 2007, to 69.5 births
per 1,000 females aged 15-44. That's the highest rate since 1990.
The percentage of low birth-weight babies (less than 2,500 grams)
decreased, from 8.3 percent in 2006 to 8.2 percent in 2007. Over the
past few decades, low birth weight rates have steadily risen; this is
the first decline since 1984.
The rate of preterm births (babies delivered after less than 37 weeks
of pregnancy) decreased 1 percent, to 12.7 percent in 2007. The
decline occurred predominately among infants born late preterm
(between 34 and 36 weeks). Since the early 1980s, the preterm rate in
the United States has increased by more than a third.
The report is based on an analysis of nearly 99 percent of birth
records reported to 50 states and the District of Columbia as part of
the National Vital Statistics System.

The March of Dimes said it hopes the decline in the rate of preterm
births will be the start of a new trend in improved maternal and
infant health.

"We're encouraged by this drop in the preterm birth rate and hope that
the emphasis we've put on the problem of late preterm birth is
beginning to make a difference," president Jennifer L. Howse said in a
news release about the statistics. "Through our Prematurity Campaign,
we can build on this success and begin to give more babies a healthy
start in life."

Preterm birth, the leading cause of newborn death, costs more than $26
billion annually, according to the Institute of Medicine. Preterm
babies who survive are at risk for numerous health issues, including
mental retardation and breathing problems, the March of Dimes said.