Frequencies for first 10,000 rows of immedfl variable in nhamcsed2001 dataset :

        was |
  immediacy |
   of visit |
   imputed? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,495       94.95       94.95
          1 |        505        5.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016