Frequencies for first 10,000 rows of rx2cat2 variable in nhamcsopd2006 dataset :

     for rx2, multum drug category #2 - |
                               detailed |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
Anti-infectives: miscellaneous antibiot |          7        0.07        0.07
          Anti-infectives: sulfanomides |         21        0.21        0.28
    Cardiovascular agents: vasodilators |          4        0.04        0.32
 Hormones: sex hormones: contraceptives |         11        0.11        0.43
        Miscellaneous agents: antidotes |          1        0.01        0.44
Miscellaneous agents: local injectable  |         53        0.53        0.97
Nutritional products: minerals and elec |          4        0.04        1.01
     Respiratory agents: antihistamines |         41        0.41        1.42
       Respiratory agents: antitussives |          6        0.06        1.48
      Respiratory agents: decongestants |         10        0.10        1.58
Respiratory agents: miscellaneous respi |          4        0.04        1.62
Topical agents: dermatological agents:  |          1        0.01        1.63
Topical agents: dermatological agents:  |          1        0.01        1.64
Topical agents: dermatological agents:  |          4        0.04        1.68
Cardiovascular agents: diuretics: misce |          1        0.01        1.69
Metabolic agents: antihyperlipidemic ag |          4        0.04        1.73
Hormones: sex hormones: sex hormone com |          3        0.03        1.76
   Miscellaneous agents: antirheumatics |         11        0.11        1.87
CNS: Antiemetic/antivertigo agents: phe |         16        0.16        2.03
CNS: Antiemetic/antivertigo agents: mis |         59        0.59        2.62
CNS: Anticonvulsants: Barbiturate antic |          2        0.02        2.64
CNS: Anticonvulsants: Benzodiazepine an |         71        0.71        3.35
CNS: Anticonvulsants: Miscellaneous ant |          3        0.03        3.38
Psychotherapeutic agents: antidepressan |          4        0.04        3.42
Psychotherapeutic agents: antipsychotic |          7        0.07        3.49
Coagulation modifiers: antiplatelet age |         60        0.60        4.09
Alternative medicines: nutraceutical pr |          2        0.02        4.11
Anti-infectives: antimalarial agents: a |         13        0.13        4.24
Anti-infectives: antimalarial agents: m |          4        0.04        4.28
Miscellaneous agents: genitourinary tra |          1        0.01        4.29
Topical agents: vaginal preprations: va |         11        0.11        4.40
CNS: Anti-Parkinson agents: dopaminergi |          1        0.01        4.41
Gastrointestinal agents: 5-aminosalicyl |          1        0.01        4.42
Metabolic agents: antihyperuricemic age |          3        0.03        4.45
Topical agents: dermatological agents:  |          9        0.09        4.54
Respiratory agents: respiratory inhalan |          2        0.02        4.56
Hormones: adrenal cortical steroids: gl |         18        0.18        4.74
Cardiovascular agents: agents for pulmo |          1        0.01        4.75
Miscellaneous agents: smoking cessation |         39        0.39        5.14
Cardiovascular agents: aldosterone rece |          5        0.05        5.19
                                      . |      9,481       94.81      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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