Frequencies for first 10,000 rows of urine variable in nhamcsopd2011 dataset :

 Urinalysis |
       (UA) |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,834       88.34       88.34
        Yes |      1,166       11.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016