Frequencies for rx_ce_nolownoaged_rxhcc54 variable in rxcoeff dataset : rx_ce_nolow | noaged_rxhc | c54 -- | alzheimer`s | disease | Freq. Percent Cum. ------------+----------------------------------- .229 | 1 100.00 100.00 ------------+----------------------------------- Total | 1 100.00 by Jean Roth , jroth@nber.org , 2 May 2016