National Long-Term Care Survey

Data Dictionaries for Linked Medicare Files

'Linked Medicare data' refers to the Medicare records of NLTCS participants. These records are stripped of any identifying information and then linked to corresponding NLTCS data by a 5-digit unique but anonymous Sequence Number.

Variables Blanked for Confidentiality Reasons

1991-2004 Medicare Standard Analytic File records for the 49,242 people entering the survey from 1982-2004:

To preserve respondent confidentiality, these variables have been removed from the data sets described by the unedited CMS Data Dictionaries listed below.

Carrier Claims Record (Physician Part B) , 1991-2004
Clinical Labs, 1991-1994
Denominator File, version I, 1991-2004
Durable Medical Equipment, 1994-2004
Home Health Agency, 1991-2004
Hospice, 1991-2004
Inpatient, 1991-2004
Outpatient, 1991-2004
Skilled Nursing Facility, 1991-2004
Vital Statistics (Thru May 2005)
Version I Detailed Specs

1984-1990 Medicare records for the 30,308 people entering the survey from 1982-1989:

To preserve respondent confidentiality, these variables have been removed from the Denominator Cross-Reference File, Version H, listed below.

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