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Time since last cholesterol check: Time period

Codes and Frequencies

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CHOLCHEKTP reports the type of time unit (days, weeks, months, or years) sample adults used when answering the open-ended question, "About how long has it been since you had your blood cholesterol checked by a doctor, nurse, or health professional?" CHOLCHEKTP must be interpreted in conjunction with CHOLCHEKNO, which reports the number of (time) units stated in response to the same question.

For 2003, the National Center for Health Statistics also recoded these data into years in the variable CHOLCHEKYR, which reports the number of years since sample adults last had their blood cholesterol checked by a doctor, nurse, or other health professional.


This variable is comparable over time.


  • 2003; 2014; 2017: Sample adults age 18+.
  • 2008: Sample adults 18+ who have ever had their blood cholesterol checked.


  • 2003, 2008, 2014, 2017