Frequencies for first 10,000 rows of rx3v1c1 variable in nhamcsopd2007 dataset :

   for rx3, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,647       66.47       66.47
        001 |        189        1.89       68.36
        020 |         24        0.24       68.60
        028 |          3        0.03       68.63
        040 |        548        5.48       74.11
        057 |        692        6.92       81.03
        081 |         59        0.59       81.62
        087 |        182        1.82       83.44
        097 |        159        1.59       85.03
        105 |        100        1.00       86.03
        115 |        207        2.07       88.10
        122 |        251        2.51       90.61
        133 |        174        1.74       92.35
        153 |          1        0.01       92.36
        218 |         13        0.13       92.49
        242 |        239        2.39       94.88
        254 |        156        1.56       96.44
        331 |          1        0.01       96.45
        358 |        355        3.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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