Frequencies for first 10,000 rows of rx2cat2 variable in nhamcsed2006 dataset :

     for rx2, multum drug category #2 - |
                               detailed |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
anti-infectives: miscellaneous antibiot |         16        0.16        0.16
          anti-infectives: sulfanomides |         41        0.41        0.57
    cardiovascular agents: vasodilators |         68        0.68        1.25
    cardiovascular agents: vasopressors |          1        0.01        1.26
              cns: analgesics: narcotic |          1        0.01        1.27
        miscellaneous agents: antidotes |          2        0.02        1.29
miscellaneous agents: local injectable  |         49        0.49        1.78
nutritional products: minerals and elec |         11        0.11        1.89
     respiratory agents: antihistamines |         98        0.98        2.87
       respiratory agents: antitussives |         22        0.22        3.09
      respiratory agents: decongestants |          7        0.07        3.16
respiratory agents: miscellaneous respi |         94        0.94        4.10
topical agents: dermatological agents:  |         16        0.16        4.26
topical agents: dermatological agents:  |          3        0.03        4.29
cardiovascular agents: diuretics: misce |          4        0.04        4.33
respiratory agents: bronchodilators: ad |          1        0.01        4.34
cns: antiemetic/antivertigo agents: phe |        252        2.52        6.86
cns: antiemetic/antivertigo agents: mis |         47        0.47        7.33
cns: anticonvulsants: benzodiazepine an |         92        0.92        8.25
psychotherapeutic agents: antipsychotic |         16        0.16        8.41
coagulation modifiers: antiplatelet age |         53        0.53        8.94
anti-infectives: antimalarial agents: m |         16        0.16        9.10
topical agents: vaginal preprations: va |          4        0.04        9.14
cns: anti-parkinson agents: dopaminergi |          1        0.01        9.15
metabolic agents: antihyperuricemic age |          1        0.01        9.16
topical agents: dermatological agents:  |          4        0.04        9.20
respiratory agents: respiratory inhalan |          1        0.01        9.21
hormones: adrenal cortical steroids: gl |          6        0.06        9.27
                                      . |      9,073       90.73      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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