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Compressed Mortality File
Data
base description
Mortality
data file description
Population
file description
List of data file variables at a glance
Data file technical characteristics
Geographic coverage
Data
availability
Documentation
Related reports
Contact
Data base description
The Compressed Mortality File (CMF) is comprised of a county-level national
mortality file and a county-level national population file. Currently, the
CMF spans the years 1968-2001 and is divided into four parts: 1968-78,
1979-88, 1989-98, and 1999-2001. The first two parts are public-use files
and are available on a CD-ROM (CMF 1968-88 Series 20 No 1A). The other two
parts can be made available to researchers under Part II Use Agreements in
CD-ROM format (CMF 1989-98 Series 20 No 1E and CMF 1999-2001 Series 20 No
1G). The CMF is a relatively compact file as it contains only a select set
of analysis variables. The CMF permits the calculation of national and
subnational death rates and the examination of mortality trends for
age-sex-race groups of interest.
Mortality data file description
Mortality data on the CMF are based on NCHS mortality files that include a
record for every death of a U.S. resident recorded in the United States
during the period 1968-2001 (except 1972). For 1972, the data are based on a
50 percent sample of deaths and weighted by a factor of 2. The source data
records were condensed to 23 bytes by retaining only a select set of
variables : (1) State and county of residence, (2) year of death (rather
than the full date of death), (3) race (recoded to white, black, other
races), (4) sex, (5) age group at death (specific age recoded to 16 age
groups), (6) underlying cause of death (4-digit ICD code), and (7) 69 ICD-8,
72 ICD-9, 113 ICD-10 cause-of-death recode (depending on the data year).
The number of records was reduced by aggregating records with identical
values for these seven variables and adding a count variable to the
aggregate record indicating the number of identical records.
Population file description
The population estimates on the CMF are based on Bureau of the Census
estimates of total U.S., State, and county resident populations. The 1968
and 1969 State and county population estimates were calculated by NCHS using
linear extrapolation. The 1970, 1980, 1990, and 2000 population estimates
are April 1 modified census counts. The estimates for 1971-79, 1981-89, and
1991-99 are intercensal estimates of July 1 resident populations. The 2001
estimates are postcensal estimates of the July 1 resident population. Note
that the estimates for 1991-99, 2000, and 2001 are based on bridge race
categories. The population estimates on the CMF are by geographic unit
(total United States, State, and county), year, race (white, black, other
races), sex, and age group (13 age groups). To permit the calculation of
infant mortality rates, NCHS live-birth data are included on the file.
List of data file variables at a glance
| Variable | Mortality file | Population file |
| FIPS state code | Ö | Ö |
| FIPS county code | Ö | Ö |
| County name | --- | Ö |
| Age group |
Under 1 day 1-6 days 7-27 days 28-364 days 1-4 years 5-9 years 10-14 years 15-19 years 20-24 years 25-32 years 35-44 years 45-54 years 55-64 years 65-74 years 75-84 years 85+ years |
Under 1 year and live births 1-4 years |
| Race-sex |
White male White female Black male Black female Other male Other female |
White male White female Black male Black female Other male Other female |
| Year |
1968-1988 1989-1998 1999-2001 |
1968-1988 1989-1998 1999-2001 |
| ICD code for underlying cause-of-death |
1968-78: ICD-8 1979-98: ICD-9 1999-2001: ICD-10 |
--- |
| Cause-of-death recode |
1968-78: 69 causes 1979-98: 72 causes 1999-2001: 113 causes |
--- |
Note:
Ö
This variable is
available on the file.
--- This variable is not available on the file.
Data file technical characteristics
| File type | Record length | Number of records |
| Mortality files |
23 23 23 23 |
8,774,864 (1968-78) 10,065,467 (1979-88) 9,691,181 (1989-98) 3,186,107 (1999-2001) |
| Population files |
140 148 148 148 |
206,712 (1968-78) 189,966 (1979-88) 191,418 (1989-98) 57,450 (1999-2001) |
Geographic
coverage
The CMF includes records for the United States by county of residence.
Data availability
The CMF is available on CD-ROMs:
1968-88: Series 20, No. 1A
1989-98: Series 20. No. 1E
1999-2001: Series 20, No 1G
and on CDC Wonder (1979-98 and 1999-2001) at
http://wonder.cdc.gov/mortSQL.html.
The CMF 1968-88 is a public-use file and available on request. The CMF 1989-98 and CMF 1999-2001 are available to researchers only under Part II Use Agreements. Users who wish to obtain these two files (CMF 1989-98 and CMF199-2001) must submit a written request to NCHS. All requests should include an explanation of how the file will be used and how the CD-ROMs will be secured. A determination on the request will be made and files released as applicable. Recipients must agree to restrictions regarding use of the file and publication of data from the file to avoid inadvertent disclosure of confidential information.
Documentation
File documentation for the CMF is included on the CD-ROMs in .PDF format).
Related reports
There are no NCHS reports on this file.
Contact
Deborah D. Ingram, Ph.D.
Office of Analysis and
Epidemiology
National Center for Health Statistics
Centers for Disease Control and Prevention
3311 Toledo Rd., Room 6211
Hyattsville, Maryland 20782
(301) 458-4733
This page last reviewed
July 06, 2004
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