NLTCS data form a very large file that can provide challenges for researchers. An additional utility for manipulating NLTCS data is available, funded by the NIA via the SBIR mechanism.
Utilities from Unicon Research
UNICON Research's NLTCS Utilities are tools for finding variables of interest in the NLTCS Survey and Analytic files, viewing documentation in convenient formats and extracting a user-selected subset of the data. The extracted data may be formatted for easy transfer to Stata, SAS, SPSS, spreadsheets or other analysis tools. UNICON also provides Medicare Data Utilities, similar tools for facilitating access to data from CMS's Medicare files, including those linked to the NLTCS survey.