1 stephanie j. ventura, m.a. national center for health statistics presented at the 134th annual...

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Stephanie J. Ventura, M.A.National Center for Health Statistics

Presented at the 134th Annual Meeting & Exposition of the American Public Health Association

Continuing Education Institutes

November 4, 2006Boston, MA

National Vital Statistics System - NatalityNational Vital Statistics System - Natality

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The Natality TeamThe Natality Team

Brady E. HamiltonSharon KirmeyerMarian F. MacDormanJoyce A. Martin (Team Leader)T. J. MathewsFay MenackerMartha L. MunsonPaul D. SuttonStephanie J. Ventura (Branch Chief)

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Vital Statistics Vital Statistics

Core of our health data system Base for public health, social science,

economic planning and program development Monitor key indicators of health world-wide and

at the local, state and national level Track progress to goals Identify disparities Alert to emerging problems

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National Vital Statistics System National Vital Statistics System

• Registration of births and deaths is not a Federal activity – responsibility lies with the states

• Vital Statistics Cooperative Program

• Includes all 57 registration areas (all states and territories, DC and NYC)

• Standardization of data collection and data processing

• Comparability among states

• Compilation of national vital statistics data sets

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U.S. Standard Certificate of Live Birth: 1989 RevisionU.S. Standard Certificate of Live Birth: 1989 Revision

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U.S. Standard Certificate of Live Birth: 2003 RevisionU.S. Standard Certificate of Live Birth: 2003 Revision

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Implementation of the2003 Revised Birth CertificateImplementation of the2003 Revised Birth Certificate

MT

WY

ID

WA

OR

NV

UT

CA

AZ

ND

SD

NE

CO

NM

TX

OK

KS

AR

LA

MO

IA

MN

WI

IL IN

KY

TN

MS AL GA

FL

SC

NC

VAWV

OH

MI

NY

PA

MDDE

NJ

CT RI

MA

ME

VTNH

AK

HI

DC

2003 or 2004

2005

NOTE: New York State but not New York city implemented for 2004.2006 2007 or later

Mid-year reviser

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Challenges in Implementing the 2003 Revised Birth CertificateChallenges in Implementing the 2003 Revised Birth Certificate

Delayed/Phased/Selective implementation of 2003 revised birth certificate

Multiple-race and geographic coding

Modified (improved) and new items

Natality data files for 2003 and later years – larger and complex

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Benefits in Implementing the 2003 Revised Birth CertificateBenefits in Implementing the 2003 Revised Birth Certificate

Changes to existing items

New items

Improved data quality

• Worksheets

• Edit data at source

• Standardized edits for all items

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Birth Data Web Page www.cdc.gov/nchs/births.htmBirth Data Web Page www.cdc.gov/nchs/births.htm

SOURCE: CDC/NCHS National Vital Statistics System

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Types of Data Dissemination: National Vital Statistics ReportsTypes of Data Dissemination: National Vital Statistics Reports


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Preliminary DataPreliminary Data

Based on substantial sample of records – 99% of all births for 2004

More detailed inclusive annual report Provides preview of data in final report Data track very well with those from final

report Sample of all records received and

processed by cut-off date – 4-5 months after end of data year

Published 6-10 months after end of year

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Final DataFinal Data

Annual report – based on all US births in a given year

Discussion and detailed data on almost all items in the data set

Released 12-14 months after end of year

Accompanies release of public use data file

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Types of Data Dissemination: Topical ReportsTypes of Data Dissemination: Topical Reports


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Selected Findings from ReportsSelected Findings from Reports

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From: Births: Final Data for 2004From: Births: Final Data for 2004


1/ Number of vaginal births after cesarean (VBAC) per 100 live births to women with a previous cesarean delivery.2/ Percentage of all live births by cesarean delivery.3/ Number of primary cesarean deliveries per 100 live births to women who have not had a previous cesarean.NOTE: Due to changes in data collection from implementation of the 2003 revision of the U.S. Standard Certificate of Live Birth, there may be small discontinuities in rates of primary cesarean delivery and VBAC in 2003 and 2004. See “Births: Final Data for 2004.”

Total and primary cesarean rate and VBAC rate: US, 1989-2004

17SOURCE: CDC/NCHS National Vital Statistics System

From: Infant Mortality Statistics from the 2003 Period Linked Birth/Infant Death Data Set

From: Infant Mortality Statistics from the 2003 Period Linked Birth/Infant Death Data Set

Percentage of live births and infant deaths by birthweight in grams, 2003

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From: Birth and Fertility Rates for States by Hispanic Origin Subgroups: United States, 1990 and 2000

From: Birth and Fertility Rates for States by Hispanic Origin Subgroups: United States, 1990 and 2000

Population of Hispanic Origin and Subgroups, 2000

19SOURCE: CDC/NCHS National Vital Statistics System

From: Births: Final Data for 2004From: Births: Final Data for 2004

Percent distribution of births by gestational age: US, 1990 and 2004

NOTE: Percent distribution based on gestational ages of 17-47 completed weeks.

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Upcoming ReportsUpcoming Reports

Births: Preliminary Data for 2005 Characteristics of Births to Single-Race and Multiple-

Race Women: 2003 Fetal and Perinatal Mortality: United States, 2003 Report on new items from the 2003 revised birth

certificate Estimated Pregnancy Rates: United States, 1990-

2002 Teenage Birth Rates for the United States, 1940-

2005 Births: Final Data for 2005

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Types of Data Dissemination: Vital Statistics of the United States

Types of Data Dissemination: Vital Statistics of the United States

Tabulated Data


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Types of Data Dissemination: CD-ROMs (ASCII and SETS versions)

Types of Data Dissemination: CD-ROMs (ASCII and SETS versions)

Unit Record Data


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Web based interactive data systemWeb based interactive data system

CDC WONDER: http://wonder.cdc.gov/

CDC Interactive Atlas of Reproductive Health: http://www.cdc.gov/reproductivehealth/gisatlas/index.htm

NCHS/DVS system to access vital statistics data (available later in the Fall, 2006)

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Website addressesWebsite addresses

National Center for Health Statistics Web Page: http://www.cdc.gov/nchs/

Birth Data Web Page: http://www.cdc.gov/nchs/births.htm

Linked Birth/Infant Death Web Page: http://www.cdc.gov/nchs/linked.htm

2003 Revisions of the U.S. Standard Certificates of Live Birth and Death and the Fetal Death Report Web Page: http://www.cdc.gov/nchs/vital_certs_rev.htm

U.S. Census Populations with Bridged Race Categories Web Page: http://www.cdc.gov/nchs/about/major/dvs/popbridge/popbridge.htm

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For more information contact:For more information contact:

Stephanie [email protected]

Joyce Martin [email protected]

Brady [email protected]

Paul Sutton [email protected]

Or [email protected] -- 301-458-4111

1 stephanie j. ventura, m.a. national center for health statistics presented at the 134th annual...

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