Frequencies for first 10,000 rows of prescr6 variable in nhamcsopd2011 dataset :

Prescription status code for Medication |
                                     #6 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                      Prescription drug |      1,161       11.61       11.61
                   Nonprescription drug |         59        0.59       12.20
                           Undetermined |         20        0.20       12.40
Both prescription and OTC (over the cou |        366        3.66       16.06
                                      . |      8,394       83.94      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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