Kochanek Kenneth D, Xu Jiaquan, Murphy Sherry L, Miniño Arialdi M, Kung Hsiang-Ching
Natl Vital Stat Rep. 2011 Dec 29;60(3):1-116.
This report presents final 2009 data on U.S. deaths, death rates, life expectancy, infant mortality, and trends by selected characteristics such as age, sex, Hispanic origin, race, state of residence, and cause of death.
Information reported on death certificates, which is completed by funeral directors, attending physicians, medical examiners, and coroners, is presented in descriptive tabulations. The original records are filed in state registration offices. Statistical information is compiled in a national database through the Vital Statistics Cooperative Program of the Centers for Disease Control and Prevention's National Center for Health Statistics. Causes of death are processed in accordance with the International Classification of Diseases, Tenth Revision.
In 2009, a total of 2,437,163 deaths were reported in the United States. The age-adjusted death rate was 741.1 deaths per 100,000 standard population, a decrease of 2.3% from the 2008 rate and a record low figure. Life expectancy at birth rose 0.4 years, from 78.1 years in 2008 to a record-high 78.5 years in 2009. Age-specific death rates decreased for age groups: under 1 year, 1-4, 15-24, 55-64, 65-74, and 75-84. The age-specific death rates remained unchanged for age groups 5-14, 25-34, 35-44, 45-54, and 85 years and over. The 15 leading causes of death in 2009 remained the same as in 2008. The infant mortality rate decreased 3.3% to a historically low value of 6.39 deaths per 1,000 live births in 2009.
The decline of the age-adjusted death rate to a record low value for the United States and the increase in life expectancy to a record high value of 78.5 years are consistent with long-term trends in mortality.
本报告呈现了2009年美国最终的死亡数据、死亡率、预期寿命、婴儿死亡率以及按年龄、性别、西班牙裔血统、种族、居住州和死因等选定特征划分的趋势。
由殡仪馆馆长、主治医生、法医和验尸官填写的死亡证明上所报告的信息，以描述性表格形式呈现。原始记录存档于各州登记办公室。统计信息通过疾病控制和预防中心国家卫生统计中心的生命统计合作项目汇编到一个国家数据库中。死因按照《国际疾病分类》第十版进行处理。
2009年，美国共报告了2437163例死亡。年龄调整后的死亡率为每10万标准人口741.1例死亡，比2008年的死亡率下降了2.3%，创历史新低。出生时预期寿命增加了0.4岁，从2008年的78.1岁升至2009年创纪录的78.5岁。1岁以下、1 - 4岁、15 - 24岁、55 - 64岁、65 - 74岁和75 - 84岁年龄组的特定年龄死亡率有所下降。5 - 14岁、25 - 34岁、35 - 44岁、45 - 54岁以及85岁及以上年龄组的特定年龄死亡率保持不变。2009年的15大主要死因与2008年相同。2009年婴儿死亡率下降了3.3%，降至每1000例活产6.39例死亡这一历史最低值。
美国年龄调整后的死亡率降至历史最低值以及预期寿命增至创纪录的78.5岁，与死亡率的长期趋势一致。
