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November 2006
Births: Preliminary Data for 2005 by Brady E. Hamilton, Ph.D.; Joyce A. Martin, M.P.H.; and Stephanie J. Ventura, M.A. Division of Vital Statistics This report from the Centers for Disease Control and Prevention抯 National Center for Health Statistics (NCHS) summarizes 2005 preliminary births and birth rates and selected 2005 preliminary maternal and infant health birth data for the United States. The findings come from a substantial portion of the records of births (99.2 percent) that occurred in calendar year 2005 and were received and processed by NCHS as of May 31, 2006. A report that includes both these demographic and health characteristics of births as well as state-based preliminary 2005 data is in preparation (1). Results from Preliminary Birth Data, 2005 Births and birth rates Key findings, illustrated in Tables 1-3, 5-8, and Figures 1-3, show:
The total fertility rate (TFR) rose slightly in 2005 to 2,054.0, compared with 2,045.5 in 2004 (Table 1) (2). The TFR summarizes the potential impact of current fertility patterns on completed family size to estimate the average number of births that a hypothetical group of 1,000 women would have over their lifetimes. The total fertility rate by race and Hispanic origin increased significantly in 2005 for only Hispanic women (2 percent), and decreased significantly for only non-Hispanic white women (less than 1 percent) (Table 1). Rates for non-Hispanic black, AIAN, and API women were essentially unchanged between 2004 and 2005.
Maternal and Infant Health Birth Characteristics Key findings, illustrated in Table 4 and Figures 4 and 5, show:
References 1. Hamilton BE, Martin JA, Ventura SJ. Births: Preliminary data for 2005. National vital statistics reports; vol 55. Hyattsville, MD: National Center for Health Statistics. Forthcoming. 2. Martin JA, Hamilton BE, Sutton PD, et al. Births: Final data for 2004. National vital statistics reports; vol 55 no 1. Hyattsville, MD: National Center for Health Statistics. 2006. Available from: http://www.cdc.gov/nchs/data/nvsr/nvsr55/ nvsr55_01.pdf. 3. National Center for Health Statistics. Vital statistics of the United States, 2001, volume I, natality. Available from: http://www.cdc.gov/nchs/datawh/statab/unpubd/ natality/natab2001.htm. 4. Ventura SJ, Bachrach CA. Nonmarital childbearing in the United States, 1940-99. National vital Statistics reports; vol 48 no 16. Hyattsville, MD: National Center for Health Statistics. 2000. Available from: http://www.cdc.gov/nchs/data/nvsr/ nvsr48/nvs48_16.pdf. 5. Mathews TJ, MacDorman MF. Infant mortality statistics from the 2003 period linked birth/infant death data set. National vital statistics reports; vol 54 no16. Hyattsville, MD: National Center for Health Statistics. 2006. Available from: http://www.cdc. gov/nchs/data/nvsr/nvsr54/nvsr54_16.pdf. 6. Wang ML, Dorer DJ, Fleming MP, Catlin EA. Clinical outcomes of near-term infants. Pediatrics 114(2):372-6. 2006. 7. National Center for Health Statistics. Vital statistics of the United States, 1968, vol I natality. U.S. Department of Health, Education and Welfare. Public Health Service. Rockville, MD. 1970. Available from: http://www.cdc.gov/nchs/data/vsus/vsus_1968_1.pdf. 8. National Center for Health Statistics. Technical Appendix. Vital statistics of the United States, 2004, vol I natality. U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics. Hyattsville, MD. Available from: http://www.cdc.gov/ nchs/births.htm and included on the forthcoming CD-ROM titled Vital Statistics of the United States, vol 1, Natality, 2006. 9. National Center for Health Statistics. U.S. Certificate of Live Birth. 2003. Available from: http://www.cdc.gov/ nchs/data/dvs/birth11-03final-ACC.pdf. 10. National Center for Health Statistics. 2003 revisions of the U.S. Standard Certificates of Live Birth. 2003. Available from: http://www.cdc.gov/nchs/vital_certs_rev.htm. 11. National Center for Health Statistics. Report of the Panel to Evaluate the U.S. Standard Certificates and Reports. National Center for Health Statistics. 2000. Available from: http://www.cdc.gov/nchs/data/dvs/panelreport_acc.pdf. 12. Office of Management and Budget. Revisions to the standards for the classification of federal data on race and ethnicity. Federal Register 62FR58781-58790. October 30, 1997. Available from: http://www.whitehouse.gov/omb/fedreg/ombdir15.html. 13. Office of Management and Budget. Race and ethnic standards for federal statistics and administrative reporting. Statistical Policy Directive 15. May 12, 1977. 14. National Center for Health Statistics. Postcensal estimates of the resident population of the United States as of July 1, 2005, by year, state and county, age, bridged race, sex, and Hispanic origin (vintage 2005). File pcen_v2005_y05.txt (ASCII). Released August 16, 2006. Available from: http://www.cdc.gov/nchs/ about/major/dvs/popbridge/datadoc.htm. 15. U.S. Census Bureau. America抯 Families and Living Arrangements: 2005. Fertility and Family Statistics Branch. Available from: http://www.census.gov/population/ www/socdemo/hh-fam.html.
Technical Notes Nature and sources of data To produce the preliminary estimates shown in this report, records in the file were weighted using independent control counts of all 2005 births by state of occurrence. Detailed information on weighting is available elsewhere (8). Detailed information on the reliability of estimates also may be found elsewhere (1). The 1989 and 2003 U.S. Standard Certificates of Live Birth This report includes selected 2005 data on items that are collected on both the 1989 Revision of the U.S. Standard Certificate of Live Birth (unrevised) and 2003 Revision of the U.S. Standard Certificate of Live Birth (revised). The 2003 revision is described in detail elsewhere (2,9-11). Twelve states and one U.S. territory (Florida, Idaho, Kansas, Kentucky, Nebraska, New Hampshire, New York State (excluding New York City), Pennsylvania, Puerto Rico, South Carolina, Tennessee, Texas, and Washington) implemented the revised certificate as of January 1, 2005. One additional state, Vermont, implemented the revised birth certificate in 2005, but after January 1. These 13 states represent 30.8 percent of all 2005 births; the 12 states that implemented as of January 1, 2005, represent 30.6 percent of all births. Hispanic origin and race Hispanic origin Single,
multiple, and
�span lang="en-us">bridged� race In 2005, multiple race was reported by Florida, Idaho, Kansas, Kentucky, Nebraska, New Hampshire, New York State (excluding New York City), Pennsylvania, South Carolina, Tennessee, Texas, Vermont (for births occurring from July 1, 2005, only), and Washington, which used the 2003 revision of the U.S. Standard Certificate of Live Birth, as well as, California, Hawaii, Michigan (for births at selected facilities only), Ohio, Utah, and Minnesota, which used the 1989 revision of the U.S. Standard Certificate of Live Birth. In addition, multiple race was also reported by Puerto Rico. Data from the vital records of the remaining 31 states, New York City, and the District of Columbia are based on the 1989 revision of the U.S. Standard Certificate of Live Birth that follows the 1977 Office of Management and Budget (OMB) standard, allowing only a single race to be reported (11-13). In order to provide uniformity and comparability of the data during the transition period, before all or most of the data are available in the new multiple race format, it was necessary to 揵ridge� the responses of those who reported more than one race (multiple race) to one, single race (see 揚opulation denominators�). Information on the processing and tabulation of data by race is presented in a recent report (2) Marital status National estimates of births to unmarried women are based on two methods of determining marital status. For 2004 and 2005, birth certificates in 48 states and the District of Columbia included a direct question about mother抯 marital status; in two of these states, California and Nevada, a direct question is part of the electronic birth registration process but does not appear on certified or paper copies of the birth certificate. The question in most states is: 揗other married? (At birth, conception, or any time between) (Yes or no)�. Marital status is inferred in Michigan and New York. A birth is inferred as nonmarital if a paternity acknowledgment was filed or if the father抯 name is missing from the birth certificate (listed in respective priority-of-use order). Population denominators Information on the national estimates of births to unmarried women (i.e., methods of determining marital status) and the computation of the preliminary birth rates for unmarried women is presented elsewhere (1). The birth rate for unmarried women for 2005 is estimated on the basis of population distributions by marital status provided by the U.S. Census Bureau as of March 2005 applied to the national population estimates as of July 1 (4,14,15). Both population files are 2000 census based. The nonmarital birth rate shown here for 2005 thus differs from those published by NCHS in the annual final reports, which are based on populations estimated from 3-year averages of the marital status distributions, rather than a single year as shown here (4). Population estimates for a single year are not an adequate basis for computing age-specific birth rates for unmarried women梩hese rates are available only in reports based on final data. Suggested citation Hamilton BE, Martin JA, Ventura SJ. Births: Preliminary data for 2005. Health E-Stats. Released November 21, 2006. Acknowledgments This report was prepared under the general direction of Stephanie J. Ventura, Chief of the Reproductive Statistics Branch (RSB) and Charles J. Rothwell, Director of the Division of Vital Statistics (DVS). Nicholas F. Pace, Chief of the Systems, Programming, and Statistical Resources Branch (SPSRB), Steven J. Steimel, Candace M. Cosgrove, David P. Johnson, Annie Liu, Sergey Yagodin, Manju Sharma, Jordan A. Sacks, and Bonita W. Gross provided computer programming support and statistical tables. Steven J. Steimel of SPSRB prepared the natality file. Paul D. Sutton (RSB) contributed to the 揟echnical Notes� and with Thomas D. Dunn (SPSRB), provided content review. Staff of the Data Acquisition and Evaluation Branch carried out quality evaluation and acceptance procedures for the state data files on which this report is based. The Registration Methods staff of DVS consulted with state vital statistics offices regarding the collection of birth certificate data. This report was edited by Demarius V. Miller, Office of Information Services, Information Design and Publishing Staff; graphics produced by Tommy C. Seibert, Jr., of CoCHIS/NCHM/Division of Creative Services; and formatted and posted on the Internet by Christine J. Brown, Office of Information Services, Information Design and Publishing Staff.
This page last reviewed September 09, 2008
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