Frequencies for first 10,000 rows of rx4cat2 variable in nhamcsopd2006 dataset :

     for rx4, multum drug category #2 - |
                               detailed |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
          Anti-infectives: sulfanomides |          9        0.09        0.09
    Cardiovascular agents: vasodilators |          6        0.06        0.15
Gastrointestinal agents: miscellaneous  |          1        0.01        0.16
 Hormones: sex hormones: contraceptives |          1        0.01        0.17
Miscellaneous agents: local injectable  |          7        0.07        0.24
Nutritional products: minerals and elec |          9        0.09        0.33
     Respiratory agents: antihistamines |          9        0.09        0.42
       Respiratory agents: antitussives |          6        0.06        0.48
      Respiratory agents: decongestants |          3        0.03        0.51
Respiratory agents: miscellaneous respi |          1        0.01        0.52
Topical agents: dermatological agents:  |          1        0.01        0.53
Topical agents: dermatological agents:  |          4        0.04        0.57
Metabolic agents: antihyperlipidemic ag |          1        0.01        0.58
     Hormones: sex hormones: progestins |          1        0.01        0.59
Hormones: sex hormones: sex hormone com |          1        0.01        0.60
   Miscellaneous agents: antirheumatics |          6        0.06        0.66
CNS: Antiemetic/antivertigo agents: phe |         11        0.11        0.77
CNS: Antiemetic/antivertigo agents: mis |          9        0.09        0.86
CNS: Anticonvulsants: Barbiturate antic |          3        0.03        0.89
CNS: Anticonvulsants: Benzodiazepine an |         42        0.42        1.31
CNS: Anticonvulsants: Miscellaneous ant |          2        0.02        1.33
Psychotherapeutic agents: antidepressan |          2        0.02        1.35
Psychotherapeutic agents: antipsychotic |          3        0.03        1.38
Coagulation modifiers: antiplatelet age |         56        0.56        1.94
Anti-infectives: antimalarial agents: a |          5        0.05        1.99
Anti-infectives: antimalarial agents: m |          2        0.02        2.01
Miscellaneous agents: genitourinary tra |          2        0.02        2.03
Topical agents: vaginal preprations: va |          1        0.01        2.04
CNS: Anti-Parkinson agents: dopaminergi |          1        0.01        2.05
Gastrointestinal agents: 5-aminosalicyl |          1        0.01        2.06
Metabolic agents: antihyperuricemic age |          2        0.02        2.08
Topical agents: dermatological agents:  |          2        0.02        2.10
Hormones: adrenal cortical steroids: gl |         16        0.16        2.26
Cardiovascular agents: agents for pulmo |          3        0.03        2.29
Miscellaneous agents: smoking cessation |         11        0.11        2.40
Cardiovascular agents: aldosterone rece |          5        0.05        2.45
                                      . |      9,755       97.55      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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