Data Cart

Your data extract

0 variables
0 samples
View Cart
Last A1C hemoglobin level

Codes and Frequencies

Can't find the category you are looking for? Try the Detailed codes


For sample adults who were ever told by a doctor or other health professional that they had diabetes (other than during pregnancy) (DIABETICEV), who had heard of hemoglobin A1C (DIA1CKNOW), and who had their hemoglobin A1C checked in the past year (DIA1CEXAMYR), DIA1CLEVEL reports their last hemoglobin A1C level.

A second variable also only available in 2003, DIA1CSAFE, reports what such persons' hemoglobin A1C level should be, according their doctor, nurse, or other health professional.

According to the Adult Health Advisor website from the University of Michigan Health System,

The hemoglobin A1c percentage rises as your average blood sugar level rises. The normal range for a person without diabetes is 4 to 6%. The goal for most adults with diabetes is an A1c below 7%. For some people, the goal should be 6% or less. For others, the A1c goal may need to be slightly higher than 7% (for example, the very elderly).

The American Diabetes Association guidelines similarly call for a level of hemoglobin A1C of 7 percent or less as desirable for persons with diabetes.

Other diabetes-related questions were periodically included in the survey; see DIABETICEV for a summary of these variables currently in the IPUMS NHIS.


This variable is only available in 2003.


  • 2003: Sample adults age 18+ who were ever told they had diabetes (other than during pregnancy), had heard of glycosylated hemoglobin or A1c, and had it checked in the past 12 months.


  • 2003