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National Longitudinal Mortality Study (NLMS)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00005159
Recruitment Status : Completed
First Posted : May 26, 2000
Last Update Posted : August 8, 2016
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Tracking Information
First Submitted Date May 25, 2000
First Posted Date May 26, 2000
Last Update Posted Date August 8, 2016
Study Start Date July 1983
Primary Completion Date Not Provided
Current Primary Outcome Measures Not Provided
Original Primary Outcome Measures Not Provided
Change History
Current Secondary Outcome Measures Not Provided
Original Secondary Outcome Measures Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title National Longitudinal Mortality Study (NLMS)
Official Title Not Provided
Brief Summary To estimate probabilities of death by cause for a representative United States population, according to age, sex, race, occupation, industry, income, education, residence, country of birth, calendar year, and a number of other demographic and epidemiologic factors. The representative population is derived from selected Bureau of the Census files and is matched to the National Death Index maintained by the National Center for Health Statistics. The Bureau of the Census provides the data processing, coding and management necessary to complete this objective.
Detailed Description

BACKGROUND:

The current National Longitudinal Mortality Study began in 1983 with agreements with the Census Bureau which prepared baseline files from surveys representative of the United States and with the National Center for Health Statistics which prepared the National Death Index identifying deaths in the baseline populations. The baseline population of over one million persons has been matched to the NDI on several occasions, resulting in approximately 100,000 deaths occurring in 1979 to 1989. Using available data, an analysis was conducted relating socio-economic characteristics to subsequent mortality.

DESIGN NARRATIVE:

The NLMS is a national study of mortality over time among selected Census Bureau population samples numbering about 2.4 million. The census samples are matched to the National Death Index (NDI) maintained by the National Center for Health Statistics. The NDI is a file of all U.S. deaths since 1979 and is used to determine which individuals in the Current Population Surveys (CPS) have died. The samples are matched every other year to obtain deaths among these cohorts. Death certificates are then purchased from the states and coded for causes of death and other data. Mortality rates by age, sex, race, national origin, occupation, industry, income, education, state of residence and other factors are then obtained. The follow-up period begins with 1979, the first year covered by the NDI and ends with 1998. The total number of deaths for these cohorts is estimated to be about 250,000.

Census samples in the NLMS are being matched to the Centers for Medicare & Medicaid Services (CMS) medicare database. Hospitalization, physician, outpatient, and other CMS data will be incorporated into the NLMS database for all participants meeting the Medicare age eligibility criteria. The study continues through December, 2009.

Study Type Observational
Study Design Not Provided
Target Follow-Up Duration Not Provided
Biospecimen Not Provided
Sampling Method Not Provided
Study Population Not Provided
Condition
  • Cardiovascular Diseases
  • Heart Diseases
Intervention Not Provided
Study Groups/Cohorts Not Provided
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status Completed
Enrollment Not Provided
Original Enrollment Not Provided
Actual Study Completion Date December 2009
Primary Completion Date Not Provided
Eligibility Criteria No eligibility criteria
Sex/Gender
Sexes Eligible for Study: Male
Ages up to 100 Years   (Child, Adult, Older Adult)
Accepts Healthy Volunteers No
Contacts Contact information is only displayed when the study is recruiting subjects
Listed Location Countries Not Provided
Removed Location Countries  
 
Administrative Information
NCT Number NCT00005159
Other Study ID Numbers 1031
AHL12005001-1-0-1 ( U.S. NIH Grant/Contract )
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement Not Provided
Responsible Party Not Provided
Study Sponsor National Heart, Lung, and Blood Institute (NHLBI)
Collaborators Not Provided
Investigators Not Provided
PRS Account National Heart, Lung, and Blood Institute (NHLBI)
Verification Date April 2012