BSTHLDYR is a 4-digit-numeric variable.

0: Not in universe
9996: Time period format
9997: Unknown-refused
9998: Unknown-not ascertained
9999: Unknown-don't know

Description

For sample adults aged 40 and older who had ever had a home blood stool test, BSTHLDYR reports the year of the most recent home blood stool test. BSTHLDYR should be used with BSTHLDMO, the month of the most recent home blood stool test.

Please refer to BSTHEV for more information about home blood stool testing variables.

Comparability

Aside from slight changes in question wording, this variable is comparable over time. In 2015, the wording of the question asking whether respondents had ever had a home blood stool test BSTHEV changed slightly to more inclusive language. Prior to 2015, respondents were asked whether they ever had "a blood stool test, using a HOME test kit?" Beginning in 2015, respondents were asked whether they had ever had "a blood stool or FIT test, using a HOME test kit?"

Universe

Availability

• 2000, 2003, 2005, 2008, 2010, 2013, 2015, 2018

Weights

• 2000, 2003, 2005, 2008, 2010, 2013, 2015, 2018 : SAMPWEIGHT