Frequencies for first 10,000 rows of diagscrn variable in nhamcsopd2006 dataset :

  were diagnostic |
 services ordered |
     or provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               No |      1,338       13.38       13.38
              Yes |      8,488       84.88       98.26
Entire item blank |        174        1.74      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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