Description

KIDNYMISYRC indicates whether the person had a chronic missing kidney in the past year. This variable is created with supplemental programming by the IPUMS NHIS staff from the pre-1997 condition records. For general information about IHIS variables (such as KIDNYMISYRC) created from the pre-1997 condition records, see the User Note on Condition Records and Condition Variables.

Defining Missing Kidney Records and Identifying Persons with a Missing Kidney

For all available years, persons who were asked a direct question about having a missing kidney and who have a chronic missing kidney condition record are given a "Yes" code for KIDNYMISYRC. Persons who were asked a direct question about having a missing kidney but do not have a chronic missing kidney record are given a code of "No." Persons who were not asked a direct question about a missing kidney, or for whom it is unknown whether they were asked such a question, are given a code of "NIU" (not in universe), regardless of whether they have a chronic missing kidney record.

For all available years (1984 to 1996), chronic missing kidney records were defined as those condition records with a code of "215" ("Absence, kidney") in the variable C1CONDRC in the original NHIS public use files. This condition code value comes from NCHS's Diagnostic Recode C: Chronic Conditions and Impairments.

Weights
For all available years (1984-1996), KIDNYMISYRC should be weighted with CONDWT4.

Comparability

There are no comparability issues with KIDNYMISYRC.

Universe

Availability

• 1984-1996

Weights

• 1984-1996 : CONDWT4