Frequencies for first 10,000 rows of drg6ing2 variable in nhamcsopd2004 dataset : ingredient code #2 for medication | #6 | Freq. Percent Cum. ------------------------------------+----------------------------------- acacia gum | 1 0.01 0.01 bisacodyl | 1 0.01 0.02 caffeine | 1 0.01 0.03 levodopa | 1 0.01 0.04 magnesium acetate | 1 0.01 0.05 multivitamins general | 1 0.01 0.06 neomycin | 2 0.02 0.08 niacin | 1 0.01 0.09 niacinamide | 1 0.01 0.10 pertussis vaccine | 1 0.01 0.11 petrolatum | 1 0.01 0.12 protein supplement | 1 0.01 0.13 pyridoxine | 10 0.10 0.23 riboflavin | 1 0.01 0.24 sodium chloride | 1 0.01 0.25 sulfathiazole | 1 0.01 0.26 tobramycin | 2 0.02 0.28 triamterene | 2 0.02 0.30 trimethoprim | 3 0.03 0.33 vitamin c | 1 0.01 0.34 vitamin e | 1 0.01 0.35 salmeterol | 4 0.04 0.39 lamivudine | 2 0.02 0.41 metformin | 1 0.01 0.42 ethinyl estradiol | 1 0.01 0.43 propoxyphene napsylate | 7 0.07 0.50 polymyxin b sulfate | 1 0.01 0.51 hydrocodone bitartrate | 8 0.08 0.59 codeine phosphate | 2 0.02 0.61 amphetamine sulfate | 2 0.02 0.63 docusate sodium | 2 0.02 0.65 oxycodone hcl | 1 0.01 0.66 ergotamine tartrate | 1 0.01 0.67 albuterol sulfate | 3 0.03 0.70 timolol maleate | 1 0.01 0.71 pheniramine maleate | 1 0.01 0.72 promethazine hcl | 1 0.01 0.73 drospirenone | 1 0.01 0.74 losartan potassium | 2 0.02 0.76 amlodipine besylate | 3 0.03 0.79 betamethasone dipropionate | 2 0.02 0.81 misoprostol | 1 0.01 0.82 . | 9,918 99.18 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016