What data are available?
NLTCS Survey Data
Two Public Use Files currently distributed on CD-ROM:
- Survey data in ASCII format (1982, 1984, 1989, 1994, and 1999) and in SAS format for all waves.
- The NLTCS Analytic Data File, a file of derived variables for all waves of the survey used in research and that incorporates correction factors and consistency checking based on analyses. The Analytic Data File covers the 1982 to 2004 waves and is available in both ASCII and SAS format.
Final versions of data for all waves up to and including 1999 have been released and are supported by documentation, both online and as part of the distributed CD-ROM. The Beta-2 version of 2004 survey was released on November 30, 2006.
NLTCS Linked Data
The following files are available only from the Centers for Medicare and Medicaid Services (CMS):
Standard Analytic files containing Medicare records of those surveyed, with
identifying information deleted and replaced with an anonymous sequence
number linking the file to the corresponding NLTCS record.
1991-2004 Medicare Standard Analytic File records for the 49,242 people entering the survey from 1982-2004:
Carrier Claims Record (Physician Part B) , 1991-2005
Clinical Labs, 1991-1994
Denominator File, version I, 1991-2005
Durable Medical Equipment, 1994-2005
Home Health Agency, 1991-2005
Skilled Nursing Facility, 1991-2005
Vital Statistics File containing survey participants' dates of birth and death and removed from the public use files for reasons of confidentiality.
1984-1990 Medicare records for the 30,308 people entering the survey from 1982-1989:
Denominator Cross-Reference File, - Version H, 1984-1990
Version H Detailed Specs
Version I Nearline Changes
Medicare Automated Data Retrieval System, 1984-1990
1982-1983 Medicare records for the 25,398 people entering the survey in 1982 and 1984:
Medicare Part A Home Health Agency, Part B
Medicare Part A Home Health Agency, Part B, Inpatient, Skilled Nursing Facility
Medicare Part B