Frequencies for first 10,000 rows of rx8v3c1 variable in nhamcsopd2006 dataset :

        for rx8, level 3 of multum drug |
                            category #1 |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
CNS: analgesics: miscellaneous analgesi |          6        0.06        0.06
              CNS: Analgesics: Narcotic |         14        0.14        0.20
                 CNS: Analgesics: NSAID |          7        0.07        0.27
           CNS: Analgesics: Salicylates |         17        0.17        0.44
CNS: Anxiolytics, sedatives, hypnotics: |          1        0.01        0.45
CNS: Anxiolytics, sedatives, hypnotics: |         10        0.10        0.55
CNS: Anxiolytics, sedatives, hypnotics: |          6        0.06        0.61
Psychotherapeutic agents: antidepressan |          4        0.04        0.65
Gastrointestinal agents: functional bow |          3        0.03        0.68
 Hormones: sex hormones: contraceptives |          1        0.01        0.69
Topical agents: dermatological agents:  |          1        0.01        0.70
Topical agents: dermatological agents:  |          2        0.02        0.72
Topical agents: dermatological agents:  |          1        0.01        0.73
Cardiovascular agents: diuretics: loop  |         12        0.12        0.85
Cardiovascular agents: diuretics: potas |          8        0.08        0.93
Cardiovascular agents: diuretics: thiaz |          6        0.06        0.99
Anti-infectives: cephalosporins: first  |          3        0.03        1.02
Topical agents: ophthalmic preparations |          4        0.04        1.06
Topical agents: ophthalmic preparations |          1        0.01        1.07
Metabolic agents: antihyperlipidemic ag |         26        0.26        1.33
Anti-infectives: antiviral agents: prot |          1        0.01        1.34
CNS: Muscle relaxants: skeletal muscle  |          5        0.05        1.39
Respiratory agents: bronchodilators: ad |          7        0.07        1.46
Respiratory agents: bronchodilators: br |          9        0.09        1.55
      Hormones: sex hormones: estrogens |          2        0.02        1.57
CNS: Analgesics: Narcotic analgesic com |         20        0.20        1.77
   CNS: Analgesics: Antimigraine agents |          2        0.02        1.79
CNS: Antiemetic/antivertigo agents: 5HT |          2        0.02        1.81
CNS: Anticonvulsants: Miscellaneous ant |          7        0.07        1.88
CNS: Anti-Parkinson agents: anticholine |          1        0.01        1.89
Psychotherapeutic agents: antidepressan |         12        0.12        2.01
Psychotherapeutic agents: antidepressan |          2        0.02        2.03
Coagulation modifiers: antiplatelet age |          2        0.02        2.05
Metabolic agents: antidiabetic agents:  |          8        0.08        2.13
Metabolic agents: antidiabetic agents:  |          9        0.09        2.22
Metabolic agents: antidiabetic agents:  |         13        0.13        2.35
Anti-infectives: penicillins: aminopeni |          2        0.02        2.37
Anti-infectives: penicillins: natural p |          1        0.01        2.38
Anti-infectives: antiviral agents: adam |          1        0.01        2.39
Anti-infectives: antiviral agents: puri |          1        0.01        2.40
Anti-infectives: antituberculosis agent |          1        0.01        2.41
Anti-infectives: antituberculosis agent |          3        0.03        2.44
Anti-infectives: antifungals: azole ant |          3        0.03        2.47
Anti-infectives: antimalarial agents: a |          2        0.02        2.49
Metabolic agents: antihyperlipidemic ag |          2        0.02        2.51
Topical agents: nasal preparations: nas |          6        0.06        2.57
Metabolic agents: antihyperlipidemic ag |          1        0.01        2.58
Coagulation modifiers: anticoagulants:  |          8        0.08        2.66
Miscellaneous agents: genitourinary tra |          1        0.01        2.67
Miscellaneous agents: genitourinary tra |          4        0.04        2.71
Topical agents: vaginal preprations: va |          2        0.02        2.73
Metabolic agents: antidiabetic agents:  |         10        0.10        2.83
Cardiovas agents: beta-adrenergic block |         13        0.13        2.96
Cardiovas agents: beta-adrenergic block |          5        0.05        3.01
      CNS: Analgesics: Cox-2 inhibitors |          2        0.02        3.03
Respiratory agents: respiratory inhalan |          1        0.01        3.04
Respiratory agents: bronchodilators: an |          2        0.02        3.06
Anti-infectives: macrolide derivatives: |          1        0.01        3.07
Psychotherapeutic agents: antidepressan |          1        0.01        3.08
Psychotherapeutic agents: antidepressan |          4        0.04        3.12
Metabolic agents: antidiabetic agents:  |          1        0.01        3.13
Metabolic agents: antihyperlipidemic ag |          2        0.02        3.15
Psychotherapeutic agents: antipsychotic |          4        0.04        3.19
                                      . |      9,681       96.81      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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