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Decreased activity performance during years of best physical health. (Polio supplement)

Codes and Frequencies

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For persons aged 18+ who were diagnosed with polio, who reported having a period of best physical health after the diagnosis, and whose period of best physical health has ended, POLBPERF reports if the person experienced any decrease in his or her ability to carry out routine activities of daily living such as working, housework, walking, driving, dressing, bathing, and so forth since the period when the person was at his or her physical best.

This variable is part of the Polio supplement in 1994-1995, which collected additional information on the symptoms and impact of the illness at the time of initial diagnosis of polio and at various times after the diagnosis. This includes questions on periods of rehabilitation, post-polio syndrome, times when respondents felt they were at their "physical best", and other health problems experienced. Whenever possible, self-response by the polio survivor was required for this supplement. Users should note that because of the small sample sizes, many single year estimates will not be reliable and variance estimators will be unstable. It is recommended that separate year analyses not be done.


There are no comparability issues.


  • 1994-1995: Persons aged 18+ who have ever been diagnosed with polio, who report having a period of best physical health after having polio, and whose period of best physical health already ended.


  • 1994-1995


  • No weights are available for this variable. Please refer to Description for more information.