Frequencies for first 10,000 rows of drg4ing2 variable in nhamcsopd2003 dataset : ingredient code #2 for medication | #4 | Freq. Percent Cum. ------------------------------------+----------------------------------- aspirin | 1 0.01 0.01 benzocaine | 1 0.01 0.02 butalbital | 2 0.02 0.04 calcium acetate | 1 0.01 0.05 dichloralphenazone | 1 0.01 0.06 guaifenesin | 1 0.01 0.07 lipase | 1 0.01 0.08 magnesium acetate | 3 0.03 0.11 mumps virus vaccine | 4 0.04 0.15 pertussis vaccine | 5 0.05 0.20 petrolatum | 1 0.01 0.21 pyridoxine | 7 0.07 0.28 simethicone | 1 0.01 0.29 soybean oil | 1 0.01 0.30 tetanus toxoid | 2 0.02 0.32 tetracaine | 1 0.01 0.33 trimethoprim | 6 0.06 0.39 vitamin b-12 | 1 0.01 0.40 vitamin c | 1 0.01 0.41 vitamin d | 3 0.03 0.44 vitamin e | 1 0.01 0.45 vitamin b complex | 1 0.01 0.46 haemophilus b conjugate vaccine | 2 0.02 0.48 salmeterol | 9 0.09 0.57 lamivudine | 2 0.02 0.59 metformin | 5 0.05 0.64 valsartan | 1 0.01 0.65 glucosamine | 1 0.01 0.66 isophane insulin | 1 0.01 0.67 ethinyl estradiol | 2 0.02 0.69 magnesium hydroxide | 1 0.01 0.70 atropine sulfate | 2 0.02 0.72 propoxyphene napsylate | 6 0.06 0.78 bacitracin zinc | 1 0.01 0.79 hydrocodone bitartrate | 14 0.14 0.93 codeine phosphate | 8 0.08 1.01 pseudoephedrine hcl | 1 0.01 1.02 amphetamine sulfate | 1 0.01 1.03 titanium dioxide | 1 0.01 1.04 oxycodone hcl | 8 0.08 1.12 triamcinolone acetonide | 1 0.01 1.13 clavulanate potassium | 3 0.03 1.16 albuterol sulfate | 2 0.02 1.18 neomycin sulfate | 1 0.01 1.19 timolol maleate | 1 0.01 1.20 epinephrine bitartrate | 4 0.04 1.24 phenylephrine tannate | 2 0.02 1.26 losartan potassium | 2 0.02 1.28 amlodipine besylate | 1 0.01 1.29 . | 9,871 98.71 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016