 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
1985 NNHS Linked Mortality File
Lists
of variables at a glance
Data
file technical characteristics
Description of the data set
NCHS has conducted a mortality linkage of the
1985 National Nursing
Home Survey (NNHS) with the NCHS
National Death Index (NDI). The 1985 NNHS, conducted between August
1985 and January 1986, collected baseline data on a sample of current
nursing home residents as well as a sample of discharged residents whose
discharge occurred within a 12-month period prior to the facility contact.
There were 11,170 individual subjects - 5,195 current residents and 5,975
discharged residents included in the 1985 NNHS after accounting for those
residents who had more than one sampled stay. To supplement the current and
discharge resident components, the 1985 NNHS included a
Next-of-Kin (NOK)
component. The NOK collected data for 9,077 NNHS subjects from October 1985
to January 1986.
The National
Nursing Home Survey Followup (NNHSF) was a
longitudinal study of the 1985 NNHS. The NNHSF built on the data collection
of the 1985 NNHS and NOK by extending the period of observation by
approximately 5 years. The followup consisted of three waves of data
collection. Wave I, conducted from August through December of 1987, had 6001
completed interviews. Wave II with 3,868 completed interviews was conducted
from July through November of 1988. There were 3,041 completed interviews
for Wave III which was fielded from January through April 1990. Linkage of
the 1985 NNHS survey participants with the NDI provides the opportunity to
conduct studies designed to investigate the association of a variety of
health factors with mortality.
Data
file description
The 1985 NNHS linked mortality file contains information based upon the
results from a probabilistic match between the NCHS
National Death Index (NDI) records and
survey indication of death. The 1985 NNHS linked mortality file provides
mortality follow-up data from the date of 1985 NNHS survey participation
through December 31, 2000. All 1985 NNHS participants aged 18-117 years of
age are included on the linked mortality file. Additional variables provided
on the file include: assigned vital status, date of death, age of death,
underlying and multiple causes of death.
file variables at a glance
NNHS Public ID
Eligibility status
Final mortality status and source
Date of death
Age at death
Age when last presumed alive
Underlying cause of death codes (ICD-9 and ICD-10)
Underlying cause of death recodes (ICD-9 and ICD-10)
Multiple cause of death entity axis codes
Multiple cause of death record axis codes
Date of birth
Date of Baseline interview
Date of Sampled Admission
Date of Sampled Discharge (Discharged Residents only)
Date of NOK Interview
Date of Wave I NNHSF Interview
Date of Wave II NNHSF Interview
Date of Wave III NNHSF Interview
Survey last completed indicator
List of data file variables available by special request
Data file technical
characteristics
The NNHS linked mortality file is available in
SAS and ASCII
file formats. The total number of records is 11,170.
Data Availability
Due to confidentiality requirements, the 1985 NNHS linked mortality data are
only accessible through the NCHS Research Data
Center (RDC). All interested researchers must submit a research
proposal to the RDC to use the 1985 NNHS linked mortality data. The RDC
offers both on-site and remote user access. Approved researchers will be
able to analyze data from the 1985
NNHS standard
linked mortality file which contains information on 1985 NNHS
participant eligibility status, vital status, date of death, age at death,
and underlying and contributing causes of death. Additional death
certificate data are available by
special request. Requests for access to special request
variables should be clearly documented in the researcher’s RDC proposal.
Documentation contents
Detailed
notes for selected variables
Underlying
and multiple causes of death
Comparability
of Cause of Death Between ICD-9 and ICD-10:
Preliminary Estimates
View/download PDF
338 KB
Scientific
Data Documentation National Nursing Home Survey (NNHS)
Plan
and Operation: National Nursing Home Survey
Followup, 1987, 1988, 1990
View/download PDF
4.2 MB
Contacts
Data Linkage Team
Office of Analysis and Epidemiology
National Center for Health Statistics
Centers for Disease Control and Prevention
3311 Toledo Road, Room 6435
Hyattsville, MD 20782
E-mail: datalinkage@cdc.gov
This page last reviewed
October 15, 2008
|
