{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T15:34:09Z","timestamp":1790177649955,"version":"4.1.0"},"reference-count":31,"publisher":"American Academy of Pediatrics (AAP)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2013,3,1]]},"abstract":"<jats:p>The number of births in the United States declined by 1% between 2010 and 2011, to a total of 3\u2009953\u2009593. The general fertility rate also declined by 1% to 63.2 births per 1000 women, the lowest rate ever reported. The total fertility rate was down by 2% in 2011 (to 1894.5 births per 1000 women). The teenage birth rate fell to another historic low in 2011, 31.3 births per 1000 women. Birth rates also declined for women aged 20 to 29 years, but the rates increased for women aged 35 to 39 and 40 to 44 years. The percentage of all births to unmarried women declined slightly to 40.7% in 2011, from 40.8% in 2010. In 2011, the cesarean delivery rate was unchanged from 2010 at 32.8%. The preterm birth rate declined for the fifth straight year in 2011 to 11.72%; the low birth weight rate declined slightly to 8.10%. The infant mortality rate was 6.05 infant deaths per 1000 live births in 2011, which was not significantly lower than the rate of 6.15 deaths in 2010. Life expectancy at birth was 78.7 years in 2011, which was unchanged from 2010. Crude death rates for children aged 1 to 19 years did not change significantly between 2010 and 2011. Unintentional injuries and homicide were the first and second leading causes of death, respectively, in this age group. These 2 causes of death jointly accounted for 47.0% of all deaths of children and adolescents in 2011.<\/jats:p>","DOI":"10.1542\/peds.2012-3769","type":"journal-article","created":{"date-parts":[[2013,2,12]],"date-time":"2013-02-12T01:34:20Z","timestamp":1360632860000},"page":"548-558","source":"Crossref","is-referenced-by-count":306,"title":["Annual Summary of Vital Statistics: 2010\u20132011"],"prefix":"10.1542","volume":"131","author":[{"given":"Brady E.","family":"Hamilton","sequence":"first","affiliation":[{"name":"Division of Vital Statistics, National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, Maryland; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donna L.","family":"Hoyert","sequence":"additional","affiliation":[{"name":"Division of Vital Statistics, National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, Maryland; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joyce A.","family":"Martin","sequence":"additional","affiliation":[{"name":"Division of Vital Statistics, National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, Maryland; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donna M.","family":"Strobino","sequence":"additional","affiliation":[{"name":"Department of Population and Family Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernard","family":"Guyer","sequence":"additional","affiliation":[{"name":"Department of Population and Family Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"417","published-online":{"date-parts":[[2013,3,1]]},"reference":[{"issue":"5","key":"2021120900350016100_B1","first-page":"1","article-title":"Births: preliminary data for 2011","volume":"61","author":"Hamilton","year":"2012","journal-title":"Natl Vital Stat Rep"},{"issue":"1","key":"2021120900350016100_B2","first-page":"1","article-title":"Births: final data for 2010","volume":"61","author":"Martin","year":"2012","journal-title":"Natl Vital Stat Rep"},{"issue":"6","key":"2021120900350016100_B3","first-page":"1","article-title":"Deaths: preliminary data for 2011","volume":"61","author":"Hoyert","year":"2012","journal-title":"Natl Vital Stat Rep"},{"key":"2021120900350016100_B4","unstructured":"Murphy SL, Kochanek KD. 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