Frequencies for rx_ce_lti_rxhcc81 variable in rxcoeff dataset :

 rx_ce_lti_ |
-- migraine |
  headaches |      Freq.     Percent        Cum.
------------+-----------------------------------
       .112 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 2 May 2016