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Interval between last eye care visit and Sunday of interview week

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For sample persons who received eye care at least ONCE in the past year, EYEC1CINT reports the number of days between the person's last eye care visit and the Sunday night of the interview week.

This variable is part of the Eye Care Supplement, which provides information on eye care in the past year. For related variables and more information about this supplement, please use the IPUMS NHIS search function and drop-down menus.


There are no comparability issues.


  • 1979: Sample persons who received eye care at least twice in the past year


  • 1979