Frequencies for first 10,000 rows of prescr5 variable in nhamcsed2014 dataset :

 Prescription status code medication |
                                  #5 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                   Prescription drug |        856        8.56        8.56
                Nonprescription drug |         30        0.30        8.86
                        Undetermined |         18        0.18        9.04
Prescription or Nonprescription drug |        409        4.09       13.13
                                   . |      8,687       86.87      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017