Frequencies for first 10,000 rows of prescr5 variable in nhamcsed2015 dataset :

 Prescription status code medication |
                                  #5 |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                   Prescription drug |      1,024       10.24       10.24
                Nonprescription drug |         29        0.29       10.53
                        Undetermined |         26        0.26       10.79
Prescription or Nonprescription drug |        457        4.57       15.36
                                   . |      8,464       84.64      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017