Frequencies for rx_ce_lti_rxhcc81 variable in rxcoeff dataset :

rx_ce_lti_r |
  xhcc81 -- |
   migraine |
  headaches |      Freq.     Percent        Cum.
------------+-----------------------------------
       .102 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

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