The National Natality Data Set Paul D Sutton

The National Natality Data Set Paul D. Sutton, Ph. D. U. S. Department of Health and Human Services Centers for Disease Control and Prevention National Center for Health Statistics Division of Vital Statistics

The Natality Team Brady E. Hamilton Sharon Kirmeyer Marian F. Mac. Dorman Joyce A. Martin (Team Leader) T. J. Mathews Fay Menacker Martha L. Munson Paul D. Sutton Stephanie J. Ventura (Branch Chief) SOURCE: CDC/NCHS National Vital Statistics System

Vital Statistics Cooperative Program (VSCP) n Goals l l l Standardize definitions Standardize measures for quality Standardize methods for collecting, processing and analyzing vital statistics SOURCE: CDC/NCHS National Vital Statistics System

1989 U. S. Standard Certificate of Live Birth SOURCE: CDC/NCHS National Vital Statistics System

Confidentiality Public Use Data files do NOT include n Names n Addresses n Geographic identifiers for cities or counties with population under 100, 000 n Dates of birth for infants, mothers, fathers n Birth certificate numbers SOURCE: CDC/NCHS National Vital Statistics System

Items on the 1989 Standard Birth Certificate Maternal demographics (i. e. Hispanic origin, race, age, education) n Maternal and infant health characteristics n SOURCE: CDC/NCHS National Vital Statistics System

Hispanic Origin and subgroups Mexican n Puerto Rican n Cuban n Central or South American n SOURCE: CDC/NCHS National Vital Statistics System

Asian of Pacific Islander (API) subgroups Coded prior to 1992 n n n Chinese Japanese Hawaiian Filipino Other API Expanded coding beginning with 1992* n. Vietnamese n. Asian Indian n. Korean n. Samoan n. Guamanian n. Remaining API *detail reported by 11 states SOURCE: CDC/NCHS National Vital Statistics System

Some Health Items on the 1989 Standard Birth Certificate Maternal medical risk factors- e. g. hypertension, diabetes n Induction, stimulation of labor n Cesarean rates/VBAC rates n Preterm delivery, low birthweight n Tobacco use n Multiple births n SOURCE: CDC/NCHS National Vital Statistics System

Types of Data Dissemination: National Vital Statistics Reports SOURCE: CDC/NCHS National Vital Statistics System

Provisional Data Most timely data release of counts and rates n Short “fact sheet” released monthly on the Internet in the NVSR series n Includes counts of births, deaths, infant deaths, marriages & divorces n Estimates based on counts of certificates received during a onemonth period, regardless of month of occurrence n SOURCE: CDC/NCHS National Vital Statistics System

Preliminary Data n n n Based on substantial sample of records – 98% of all births for 2002 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 -8 months after end of year SOURCE: CDC/NCHS National Vital Statistics System

Final Data Annual report – based on all US births in a given year n Discussion and detailed data on almost all items in the data set n Released 12 -14 months after end of year n SOURCE: CDC/NCHS National Vital Statistics System

Types of Data Dissemination: Topical Reports SOURCE: CDC/NCHS National Vital Statistics System

Upcoming Reports n Births to 10 -14 year old mothers, 1990 -2002: Trends and Health Outcomes (available early fall) n Analysis of Rise in infant Mortality for 2002 (available late summer) SOURCE: CDC/NCHS National Vital Statistics System

Types of Data Dissemination: Vital Statistics of the United States Tabulated Data SOURCE: CDC/NCHS National Vital Statistics System

Types of Data Dissemination: CD-ROMs Unit Record Data SOURCE: CDC/NCHS National Vital Statistics System

Statistical Export and Tabulation System (SETS) SOURCE: CDC/NCHS National Vital Statistics System

Birth Data Web Page www. cdc. gov/nchs/births. htm SOURCE: CDC/NCHS National Vital Statistics System

The 2003 U. S. Standard Certificate of Live Birth n Improved data quality Standardized worksheets (Tested prior to implementation) l Standardized electronic systems l n Changes to existing items n New items SOURCE: CDC/NCHS National Vital Statistics System

Standardized Worksheets To encourage collection from the best sources, two worksheets have been developed and tested n. Mother’s n. Facility Worksheet SOURCE: CDC/NCHS National Vital Statistics System

Mother’s Worksheet Data directly from the mother (e. g. , race, education, cigarette smoking, WIC) n n Tested on women with a recent live birth Slight modifications made Overall, mother’s worksheet worked well Companion brochure SOURCE: CDC/NCHS National Vital Statistics System

Facility Worksheet Data directly from the medical records (e. g. , pregnancy risk factors, method of delivery) n Tested in hospitals n Hospital staff completed the worksheet using medical records n Outside expert reviewed responses for accuracy n Several items modified or deleted n Testing generally showed that the facility worksheet could be completed efficiently and accurately SOURCE: CDC/NCHS National Vital Statistics System

Guide to Completing Facility Worksheet To assist hospital staff in completing the facility worksheet a comprehensive instruction manual has been developed. It includes: n n n SOURCE: CDC/NCHS National Vital Statistics System Definitions Preferred sources within the records Key words/common abbreviations

Detailed Specification for Electronic Systems Detailed specifications for each data item on the birth certificate have been developed l l l Automatic edits/cross edits Ability to edit and query at data entry Suggested screens On-line help Drop-down menus Test decks for vendors/States SOURCE: CDC/NCHS National Vital Statistics System

New Birth Certificate: Modified Items n n SOURCE: CDC/NCHS National Vital Statistics System Cigarette smoking before and during pregnancy Method of delivery Pre-pregnancy weight, weight at delivery and height Congenital anomalies

New Birth Certificate: New Items n n n Fertility therapy WIC Infections during pregnancy Maternal morbidity Breast feeding Principal source of payment for the delivery SOURCE: CDC/NCHS National Vital Statistics System

Transition to the New Birth Certificate Continues… WA MT ME ND MN OR ID VT NH WI SD NY WY MI PA IA NE NV OH IL UT IN CO WV KS CA MO VA KY OK NM NJ DE MD DC NC TN AZ MA CT RI AR SC MS AL GA TX LA FL AK HI SOURCE: CDC/NCHS National Vital Statistics System Implemented New Certificate Expected to Implement in 2005 Implementing in 2006 or later

Data Dissemination n Public Use data file for 2003, will include data from new and modified items for States that have implemented the new certificate SOURCE: CDC/NCHS National Vital Statistics System

For more information contact a member of the Natality Team at 301 -458 -4111 SOURCE: CDC/NCHS National Vital Statistics System