Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsed2003 dataset : ingredient code #2 for medication | #4 | Freq. Percent Cum. ------------------------------------+----------------------------------- aspirin | 1 0.01 0.01 benzocaine | 2 0.02 0.03 butalbital | 3 0.03 0.06 caffeine | 2 0.02 0.08 calcium acetate | 1 0.01 0.09 cetylpyridinium | 1 0.01 0.10 chloride ion | 1 0.01 0.11 chlorpheniramine | 1 0.01 0.12 guaifenesin | 1 0.01 0.13 hydrocodone | 1 0.01 0.14 imipenem | 1 0.01 0.15 iodinated glycerol | 1 0.01 0.16 oxycodone | 1 0.01 0.17 pectin | 1 0.01 0.18 phenylephrine | 1 0.01 0.19 promethazine | 4 0.04 0.23 pseudoephedrine | 2 0.02 0.25 pyridoxine | 1 0.01 0.26 scopolamine hbr | 5 0.05 0.31 soybean oil | 2 0.02 0.33 tetanus toxoid | 6 0.06 0.39 trimethoprim | 7 0.07 0.46 loratadine | 1 0.01 0.47 salmeterol | 2 0.02 0.49 lamivudine | 1 0.01 0.50 sodium biphosphate | 1 0.01 0.51 magnesium hydroxide | 10 0.10 0.61 atropine sulfate | 1 0.01 0.62 propoxyphene napsylate | 12 0.12 0.74 polymyxin b sulfate | 1 0.01 0.75 hydrocodone bitartrate | 62 0.62 1.37 homatropine methyl bromide | 3 0.03 1.40 chlorpheniramine maleate | 1 0.01 1.41 codeine phosphate | 12 0.12 1.53 pseudoephedrine hcl | 1 0.01 1.54 docusate sodium | 1 0.01 1.55 oxycodone hcl | 22 0.22 1.77 tramadol hcl | 5 0.05 1.82 clavulanate potassium | 9 0.09 1.91 albuterol sulfate | 4 0.04 1.95 neomycin sulfate | 4 0.04 1.99 carbinoxamine maleate | 2 0.02 2.01 promethazine hcl | 1 0.01 2.02 verapamil hcl | 1 0.01 2.03 losartan potassium | 2 0.02 2.05 amlodipine besylate | 1 0.01 2.06 sulfisoxazole acetyl | 1 0.01 2.07 medroxyprogesterone acetate | 2 0.02 2.09 hydrocodone polistirex | 1 0.01 2.10 . | 9,790 97.90 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016