Frequencies for first 10,000 rows of emred variable in nhamcsed2007 dataset :

         does emergency dept use |
     electronic medical records? |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                           blank |        212        2.12        2.12
             yes, all electronic |      2,702       27.02       29.14
yes, part paper, part electronic |      4,739       47.39       76.53
                              no |      2,347       23.47      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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