Frequencies for e3_1_irf_c1_19 variable in prds_hosp10_yr2017 dataset :

e3_1_irf_c1 |
        _19 |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      3,749      100.00      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018