Frequencies for first 10,000 rows of rx7v2c2 variable in nhamcsopd2006 dataset :

        for rx7, level 2 of multum drug |
                            category #2 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
  Anti-infectives: antimalarial agents  |          2        0.02        0.02
          Anti-infectives: sulfanomides |          3        0.03        0.05
Metabolic agents: antihyperlipidemia ag |          2        0.02        0.07
    Cardiovascular agents: vasodilators |          6        0.06        0.13
                   CNS: Anticonvulsants |         12        0.12        0.25
CNS: Antiemetic/antivertigo agents: 5HT |          5        0.05        0.30
Coagulation modifiers: antiplatelet age |         31        0.31        0.61
    Hormones: adrenal cortical steroids |          3        0.03        0.64
                 Hormones: sex hormones |          4        0.04        0.68
Miscellaneous agents: local injectable  |          1        0.01        0.69
Miscellaneous agents: genitourinary tra |          1        0.01        0.70
Nutritional products: minerals and elec |          6        0.06        0.76
     Respiratory agents: antihistamines |          1        0.01        0.77
       Respiratory agents: antitussives |          1        0.01        0.78
Respiratory agents: miscellaneous respi |          4        0.04        0.82
Respiratory agents: respiratory inhalan |          1        0.01        0.83
  Topical agents: dermatological agents |          3        0.03        0.86
  Topical agents: mouth and throat prod |          2        0.02        0.88
    Topical agents: vaginal preprations |          2        0.02        0.90
   Miscellaneous agents: antirheumatics |          1        0.01        0.91
Alternative medicines: nutraceutical pr |          1        0.01        0.92
Psychotherapeutic agents: antipsychotic |          1        0.01        0.93
Metabolic agents: antihyperuricemic age |          1        0.01        0.94
Metabolic agents: glucose elevating age |          1        0.01        0.95
Miscellaneous agents: smoking cessation |          5        0.05        1.00
Cardiovascular agents: aldosterone rece |          5        0.05        1.05
                                      . |      9,895       98.95      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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