Frequencies for first 10,000 rows of rx4v3c1 variable in nhamcsed2006 dataset :

        for rx4, level 3 of multum drug |
                            category #1 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
cns: analgesics: miscellaneous analgesi |         47        0.47        0.47
              cns: analgesics: narcotic |         89        0.89        1.36
                 cns: analgesics: nsaid |        135        1.35        2.71
           cns: analgesics: salicylates |          7        0.07        2.78
cns: analgesics: analgesic combinations |          3        0.03        2.81
cns: anxiolytics, sedatives, hypnotics: |          2        0.02        2.83
cns: anxiolytics, sedatives, hypnotics: |         39        0.39        3.22
cns: anxiolytics, sedatives, hypnotics: |         22        0.22        3.44
cns: muscle relaxants: neuromuscular bl |          2        0.02        3.46
gastrointestinal agents: functional bow |         10        0.10        3.56
topical agents: dermatological agents:  |          1        0.01        3.57
topical agents: dermatological agents:  |          8        0.08        3.65
topical agents: dermatological agents:  |          1        0.01        3.66
cardiovascular agents: diuretics: loop  |         13        0.13        3.79
cardiovascular agents: diuretics: thiaz |          3        0.03        3.82
anti-infectives: cephalosporins: first  |         14        0.14        3.96
anti-infectives: cephalosporins: second |          6        0.06        4.02
anti-infectives: cephalosporins: third  |         25        0.25        4.27
topical agents: ophthalmic preparations |          1        0.01        4.28
topical agents: otic preparations: misc |          7        0.07        4.35
metabolic agents: antihyperlipidemic ag |          2        0.02        4.37
anti-infectives: antiviral agents: prot |          1        0.01        4.38
cns: muscle relaxants: skeletal muscle  |         23        0.23        4.61
respiratory agents: bronchodilators: ad |         38        0.38        4.99
respiratory agents: bronchodilators: br |          1        0.01        5.00
cns: analgesics: narcotic analgesic com |        125        1.25        6.25
   cns: analgesics: antimigraine agents |          1        0.01        6.26
cns: antiemetic/antivertigo agents: 5ht |         20        0.20        6.46
cns: antiemetic/antivertigo agents: phe |          5        0.05        6.51
cns: antiemetic/antivertigo agents: ant |          2        0.02        6.53
cns: anticonvulsants: hydantoin anticon |          2        0.02        6.55
cns: anticonvulsants: miscellaneous ant |          2        0.02        6.57
psychotherapeutic agents: antidepressan |          1        0.01        6.58
psychotherapeutic agents: antidepressan |          2        0.02        6.60
coagulation modifiers: antiplatelet age |          3        0.03        6.63
metabolic agents: antidiabetic agents:  |          1        0.01        6.64
metabolic agents: antidiabetic agents:  |          2        0.02        6.66
metabolic agents: antidiabetic agents:  |          8        0.08        6.74
anti-infectives: penicillins: penicilli |          2        0.02        6.76
anti-infectives: penicillins: aminopeni |          7        0.07        6.83
anti-infectives: penicillins: beta-lact |         11        0.11        6.94
anti-infectives: penicillins: natural p |          4        0.04        6.98
anti-infectives: antiviral agents: puri |          1        0.01        6.99
anti-infectives: antituberculosis agent |          3        0.03        7.02
topical agents: nasal preparations: nas |          1        0.01        7.03
topical agents: dermatological agents:  |          2        0.02        7.05
coagulation modifiers: anticoagulants:  |         17        0.17        7.22
coagulation modifiers: anticoagulants:  |          1        0.01        7.23
miscellaneous agents: genitourinary tra |          1        0.01        7.24
miscellaneous agents: genitourinary tra |          3        0.03        7.27
topical agents: ophthalmic preparations |          1        0.01        7.28
metabolic agents: antidiabetic agents:  |          1        0.01        7.29
cardiovas agents: beta-adrenergic block |         15        0.15        7.44
cardiovas agents: beta-adrenergic block |          3        0.03        7.47
topical agents: ophthalmic preparations |          1        0.01        7.48
topical agents: dermatological agents:  |          1        0.01        7.49
respiratory agents: bronchodilators: an |         12        0.12        7.61
hormones: adrenal cortical steroids: gl |         47        0.47        8.08
anti-infectives: macrolide derivatives: |         20        0.20        8.28
psychotherapeutic agents: antidepressan |          1        0.01        8.29
psychotherapeutic agents: antidepressan |          1        0.01        8.30
metabolic agents: antidiabetic agents:  |          1        0.01        8.31
cns: anticonvulsants: dibenzapine antic |          1        0.01        8.32
metabolic agents: antihyperlipidemic ag |          1        0.01        8.33
topical agents: ophthalmic preparations |          1        0.01        8.34
radiologic agents: radiocontrast agents |          1        0.01        8.35
psychotherapeutic agents: antipsychotic |          1        0.01        8.36
                could not be determined |          1        0.01        8.37
                                      . |      9,163       91.63      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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