Frequencies for first 10,000 rows of einselig variable in namcs2011 dataset :

    Do you/your staff verify individual |
        patient's insurance eligibility |
                           electronical |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  Blank |         18        0.18        0.18
                                Unknown |        350        3.50        3.68
Yes, with a stand-alone practice manage |      3,064       30.64       34.32
            Yes, with an EMR/EHR system |      2,749       27.49       61.81
   Yes, using another electronic system |      1,480       14.80       76.61
                                     No |      2,339       23.39      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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