Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsopd2003 dataset : ingredient code #2 for medication | #6 | Freq. Percent Cum. ------------------------------------+----------------------------------- butalbital | 1 0.01 0.01 dichloralphenazone | 1 0.01 0.02 diphenhydramine | 1 0.01 0.03 ergocalciferol | 1 0.01 0.04 iodinated glycerol | 1 0.01 0.05 iodochlorhydroxyquin | 1 0.01 0.06 levodopa | 1 0.01 0.07 magnesium acetate | 1 0.01 0.08 methyltestosterone | 1 0.01 0.09 multivitamins | 1 0.01 0.10 mumps virus vaccine | 1 0.01 0.11 phenobarbital | 1 0.01 0.12 protein supplement | 2 0.02 0.14 pyridoxine | 4 0.04 0.18 sodium chloride | 1 0.01 0.19 sodium citrate | 1 0.01 0.20 tobramycin | 1 0.01 0.21 triamterene | 5 0.05 0.26 trimethoprim | 7 0.07 0.33 vitamin d | 1 0.01 0.34 salmeterol | 3 0.03 0.37 metformin | 1 0.01 0.38 hepatitis a vaccine | 1 0.01 0.39 valsartan | 1 0.01 0.40 glucosamine | 1 0.01 0.41 atropine sulfate | 1 0.01 0.42 propoxyphene napsylate | 4 0.04 0.46 lopinavir | 1 0.01 0.47 insulin susp iso recomb human | 1 0.01 0.48 hydrocodone bitartrate | 19 0.19 0.67 codeine phosphate | 2 0.02 0.69 docusate sodium | 1 0.01 0.70 oxycodone hcl | 7 0.07 0.77 tramadol hcl | 1 0.01 0.78 clavulanate potassium | 1 0.01 0.79 albuterol sulfate | 5 0.05 0.84 timolol maleate | 2 0.02 0.86 epinephrine bitartrate | 3 0.03 0.89 promethazine hcl | 1 0.01 0.90 norelgestromin | 1 0.01 0.91 losartan potassium | 1 0.01 0.92 medroxyprogesterone acetate | 1 0.01 0.93 sodium chondroitin sulfate | 1 0.01 0.94 . | 9,906 99.06 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016