Frequencies for first 10,000 rows of rx1v1c1 variable in nhamcsopd2009 dataset :

   for rx1, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,238       32.38       32.38
        001 |        544        5.44       37.82
        020 |        157        1.57       39.39
        028 |         22        0.22       39.61
        040 |        689        6.89       46.50
        057 |      1,582       15.82       62.32
        081 |         94        0.94       63.26
        087 |        279        2.79       66.05
        097 |        334        3.34       69.39
        105 |        154        1.54       70.93
        113 |         29        0.29       71.22
        115 |        716        7.16       78.38
        122 |        386        3.86       82.24
        133 |        416        4.16       86.40
        153 |          1        0.01       86.41
        218 |         20        0.20       86.61
        242 |        416        4.16       90.77
        254 |        357        3.57       94.34
        331 |          2        0.02       94.36
        358 |        545        5.45       99.81
        365 |         10        0.10       99.91
        899 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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