PSANO5YR is a 2-digit numeric variable measured on a continuous scale of 0 to 95. In 2000 only, responses were top coded at 11. In 2019 only, responses were top coded at 20. Special value codes are as follows:
96: Not in Universe
97: Unknown - Refused
98: Unknown - Not ascertained
99: Unknown - Don't know
Aside from a top code present in 2000 and 2019 as well as the 2019 questionnaire redesign, there are no comparability issues. In 2000, the number of PSA tests was top coded at 11 or more PSA tests and in 2019, the number of PSA tests was top coded at 20 or more. There is no top code imposed for other years. Additionally, the NHIS questionnaire was substantially redesigned in 2019 to introduce a different data collection structure and new content. For more information on changes in terminology, universes, and data collection methods beginning in 2019, please see the user note.
- 2000; 2005; 2010; 2015; 2018: Male sample adults age 40+ who ever had PSA test.
- 2019: Male sample adults age 40+ who ever had PSA test (PSAEV).
- 2000, 2005, 2010, 2015, 2018-2019
- 2000, 2005, 2010, 2015, 2018-2019 : SAMPWEIGHT