Frequencies for first 10,000 rows of prescr14 variable in nhamcsed2014 dataset :

        Prescription status code for |
                      medication #14 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                   Prescription drug |         47        0.47        0.47
                Nonprescription drug |          3        0.03        0.50
                        Undetermined |          1        0.01        0.51
Prescription or Nonprescription drug |         16        0.16        0.67
                                   . |      9,933       99.33      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

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