TABLE 1.

Selected variables on the NHIS^* Linked Mortality Files

	Restricted use	Public use
Final mortality status	Yes	Yes
Death date	Yes (month, day, year)	Yes (quarter, year)
Underlying cause of death	Yes	Yes (grouped recode)
Contributing cause of death	Yes	Yes (diabetes, hypertension, hip fracture only)
Age at interview	Yes	Yes, top coded at >85 years
Age at death	Yes	No
Age when last presumed alive	Yes	No
Date of birth	Yes (month, day, year)	Yes (month, year)
Interview date	Yes (month, day, year)	Yes (quarter, year)

^*NHIS, National Health Interview Survey.