Frequencies for psi_12_postop_pulmemb_dvt_fstr variable in vwhqi_hosp_ahrq dataset :

PSI_12_POST |
OP_PULMEMB_ |
      DVT_F |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,128       68.09       68.09
          5 |      1,372       29.87       97.95
          j |         94        2.05      100.00
------------+-----------------------------------
      Total |      4,594      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016