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SIGLDYR
Calendar year of last sigmoidoscopy
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Codes

SIGLDYR 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 years and older who ever had a sigmoidoscopy (SIGEV), SIGLDYR reports the year of the respondent's most recent sigmoidoscopy. SIGLDYR should be used alongside SIGLDMO, which reports the month of most recent sigmoidoscopy.

Please see SIGEV for more information on variables covering sigmoidoscopy.

Comparability

Aside from the introduction of a top code in 2018, there are no comparability issues. In 2018, the earliest year reported in COLLDYR was limited to 84 years before the current year.

Universe

  • 2010; 2013; 2015; 2018: Sample adults age 40+ who have had a sigmoidoscopy.

Availability

  • 2010, 2013, 2015, 2018

Weights