Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd2005 dataset : ingredient code #2 for medication #4 | Freq. Percent Cum. -------------------------------------+----------------------------------- calcium acetate | 1 0.01 0.01 calcium carbonate | 1 0.01 0.02 cetylpyridinium | 1 0.01 0.03 chloride ion | 1 0.01 0.04 dimethicone | 2 0.02 0.06 dipyridamole | 1 0.01 0.07 guaifenesin | 1 0.01 0.08 hydrocodone | 1 0.01 0.09 iron preparations | 1 0.01 0.10 lipase | 1 0.01 0.11 methenamine | 1 0.01 0.12 mineral oil | 1 0.01 0.13 mumps virus vaccine | 1 0.01 0.14 norethindrone | 1 0.01 0.15 nystatin | 1 0.01 0.16 pertussis vaccine | 3 0.03 0.19 petrolatum | 1 0.01 0.20 prednisone | 1 0.01 0.21 pyridoxine | 11 0.11 0.32 riboflavin | 1 0.01 0.33 rutin | 1 0.01 0.34 sodium fluoride | 5 0.05 0.39 soybean oil | 1 0.01 0.40 tetanus toxoid | 2 0.02 0.42 triamterene | 3 0.03 0.45 trimethoprim | 5 0.05 0.50 urea | 1 0.01 0.51 vitamin b-12 | 1 0.01 0.52 vitamin c | 1 0.01 0.53 vitamin d | 2 0.02 0.55 haemophilus b conjugate vaccine | 5 0.05 0.60 salmeterol | 15 0.15 0.75 bisoprolol fumarate | 1 0.01 0.76 lamivudine | 5 0.05 0.81 metformin | 1 0.01 0.82 sodium biphosphate | 1 0.01 0.83 irbesartan | 2 0.02 0.85 rosiglitazone maleate | 1 0.01 0.86 isophane insulin | 1 0.01 0.87 ethinyl estradiol | 1 0.01 0.88 magnesium hydroxide | 4 0.04 0.92 propoxyphene napsylate | 1 0.01 0.93 lopinavir | 1 0.01 0.94 polymyxin b sulfate | 2 0.02 0.96 hydrocodone bitartrate | 15 0.15 1.11 ampicillin sodium | 1 0.01 1.12 phenylpropanolamine hcl | 2 0.02 1.14 pseudoephedrine hcl | 2 0.02 1.16 amphetamine sulfate | 4 0.04 1.20 docusate sodium | 1 0.01 1.21 oxycodone hcl | 6 0.06 1.27 tramadol hcl | 1 0.01 1.28 clavulanate potassium | 2 0.02 1.30 albuterol sulfate | 3 0.03 1.33 neomycin sulfate | 1 0.01 1.34 timolol maleate | 1 0.01 1.35 cyclopentolate hcl | 1 0.01 1.36 pyrilamine maleate | 1 0.01 1.37 ezetimibe | 1 0.01 1.38 amlodipine besylate | 1 0.01 1.39 betamethasone dipropionate | 1 0.01 1.40 diphenhydramine tannate | 4 0.04 1.44 tenofovir | 1 0.01 1.45 lisinopril | 2 0.02 1.47 . | 9,853 98.53 100.00 -------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016