Frequencies for first 10,000 rows of rx4v1c1 variable in nhamcsopd2011 dataset :

   For RX4, |
 level 1 of |
MULTUM drug |
category #1 |
     (broad |
     level) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,256       72.56       72.56
        001 |         88        0.88       73.44
        020 |         40        0.40       73.84
        028 |          1        0.01       73.85
        040 |        406        4.06       77.91
        057 |        570        5.70       83.61
        081 |         56        0.56       84.17
        087 |        196        1.96       86.13
        097 |         83        0.83       86.96
        105 |         38        0.38       87.34
        113 |         15        0.15       87.49
        115 |        265        2.65       90.14
        122 |        167        1.67       91.81
        133 |        116        1.16       92.97
        218 |         45        0.45       93.42
        242 |        194        1.94       95.36
        254 |        156        1.56       96.92
        331 |          2        0.02       96.94
        358 |        304        3.04       99.98
        365 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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