Frequencies for first 10,000 rows of drg4ing1 variable in nhamcsed2004 dataset : ingredient code #1 for medication | #4 | Freq. Percent Cum. ------------------------------------+----------------------------------- levonorgestrel | 1 0.01 0.01 acetaminophen | 124 1.24 1.25 aluminum hydroxide | 10 0.10 1.35 amoxicillin | 7 0.07 1.42 antipyrine | 4 0.04 1.46 aspirin | 1 0.01 1.47 benazepril hydrochloride | 1 0.01 1.48 biotin | 1 0.01 1.49 calcium ion | 1 0.01 1.50 capsicum | 1 0.01 1.51 cetyl alcohol | 1 0.01 1.52 codeine | 1 0.01 1.53 dextrose | 2 0.02 1.55 diphenoxylate | 2 0.02 1.57 diphtheria toxoid | 5 0.05 1.62 ephedrine | 1 0.01 1.63 ergocalciferol | 5 0.05 1.68 fluticasone propionate | 8 0.08 1.76 folic acid | 1 0.01 1.77 glyburide | 1 0.01 1.78 guaifenesin | 3 0.03 1.81 hydrochlorothiazide | 1 0.01 1.82 hydrocortisone | 2 0.02 1.84 hyoscyamine | 1 0.01 1.85 hyoscyamine hydrobromide | 1 0.01 1.86 insulin | 1 0.01 1.87 ipratropium bromide | 6 0.06 1.93 iron preparations | 1 0.01 1.94 multivitamins general | 6 0.06 2.00 niacinamide | 1 0.01 2.01 phenobarbital | 14 0.14 2.15 soap | 1 0.01 2.16 sodium chloride | 1 0.01 2.17 sodium phosphate | 1 0.01 2.18 sulbactin sodium | 1 0.01 2.19 sulfamethoxazole | 8 0.08 2.27 vitamin c | 1 0.01 2.28 vitamin b complex | 1 0.01 2.29 metformin | 1 0.01 2.30 polymyxin b | 2 0.02 2.32 brompheniramine maleate | 1 0.01 2.33 phenylpropanolamine hcl | 1 0.01 2.34 pseudoephedrine hcl | 3 0.03 2.37 meperidine hcl | 1 0.01 2.38 clavulanate potassium | 1 0.01 2.39 chlorpheniramine tannate | 2 0.02 2.41 erythromycin ethylsuccinate | 1 0.01 2.42 chlorpheniramin polistirex | 1 0.01 2.43 piperacillin sodium | 1 0.01 2.44 . | 9,756 97.56 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016