Frequencies for first 10,000 rows of rx6v3c1 variable in nhamcsed2006 dataset :

        for rx6, level 3 of multum drug |
                            category #1 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
cns: analgesics: miscellaneous analgesi |          9        0.09        0.09
              cns: analgesics: narcotic |         13        0.13        0.22
                 cns: analgesics: nsaid |          7        0.07        0.29
           cns: analgesics: salicylates |          5        0.05        0.34
cns: analgesics: analgesic combinations |          1        0.01        0.35
cns: anxiolytics, sedatives, hypnotics: |          6        0.06        0.41
cns: anxiolytics, sedatives, hypnotics: |          6        0.06        0.47
cns: muscle relaxants: neuromuscular bl |          1        0.01        0.48
psychotherapeutic agents: antipsychotic |          2        0.02        0.50
gastrointestinal agents: functional bow |          2        0.02        0.52
topical agents: dermatological agents:  |          1        0.01        0.53
cardiovascular agents: diuretics: loop  |          6        0.06        0.59
cardiovascular agents: diuretics: thiaz |          1        0.01        0.60
anti-infectives: cephalosporins: first  |          3        0.03        0.63
anti-infectives: cephalosporins: second |          1        0.01        0.64
anti-infectives: cephalosporins: third  |          3        0.03        0.67
topical agents: ophthalmic preparations |          1        0.01        0.68
topical agents: otic preparations: misc |          1        0.01        0.69
metabolic agents: antihyperlipidemic ag |          3        0.03        0.72
cns: muscle relaxants: skeletal muscle  |          6        0.06        0.78
respiratory agents: bronchodilators: ad |          5        0.05        0.83
respiratory agents: bronchodilators: br |          1        0.01        0.84
cns: analgesics: narcotic analgesic com |         18        0.18        1.02
   cns: analgesics: antimigraine agents |          2        0.02        1.04
cns: antiemetic/antivertigo agents: 5ht |          5        0.05        1.09
cns: antiemetic/antivertigo agents: phe |          3        0.03        1.12
cns: antiemetic/antivertigo agents: ant |          1        0.01        1.13
cns: anticonvulsants: hydantoin anticon |          2        0.02        1.15
cns: anti-parkinson agents: anticholine |          1        0.01        1.16
metabolic agents: antidiabetic agents:  |          1        0.01        1.17
metabolic agents: antidiabetic agents:  |          1        0.01        1.18
anti-infectives: penicillins: antipseud |          1        0.01        1.19
anti-infectives: penicillins: beta-lact |          3        0.03        1.22
anti-infectives: penicillins: natural p |          1        0.01        1.23
coagulation modifiers: anticoagulants:  |          2        0.02        1.25
miscellaneous agents: genitourinary tra |          1        0.01        1.26
cardiovas agents: beta-adrenergic block |          4        0.04        1.30
cardiovas agents: beta-adrenergic block |          2        0.02        1.32
respiratory agents: bronchodilators: an |          1        0.01        1.33
hormones: adrenal cortical steroids: gl |         10        0.10        1.43
anti-infectives: macrolide derivatives: |          5        0.05        1.48
psychotherapeutic agents: antidepressan |          1        0.01        1.49
                                      . |      9,851       98.51      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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