Frequencies for rx_ce_lti_rxhcc111 variable in rxcoeff dataset :

Rx_CE_LTI_R |
 XHCC111 -- |
Alzheimer`s |
    Disease |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 7 Feb 2019