Frequencies for first 10,000 rows of disch7da variable in nhamcsed2009 dataset :

 discharged |
   from any |
   hospital |
within last |
     7 days |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |        301        3.01        3.01
         -8 |      2,823       28.23       31.24
          1 |        253        2.53       33.77
          2 |      6,623       66.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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