Frequencies for first 10,000 rows of drg7ing1 variable in nhamcsopd2004 dataset : ingredient code #1 for medication | #7 | Freq. Percent Cum. ------------------------------------+----------------------------------- undetermined | 1 0.01 0.01 acetaminophen | 15 0.15 0.16 aluminum hydroxide | 2 0.02 0.18 benzocaine | 1 0.01 0.19 calcium | 1 0.01 0.20 carbidopa | 3 0.03 0.23 diphenoxylate | 1 0.01 0.24 diphtheria toxoid | 1 0.01 0.25 ergocalciferol | 2 0.02 0.27 estradiol | 1 0.01 0.28 estrogens | 1 0.01 0.29 fluticasone propionate | 6 0.06 0.35 glipizide | 1 0.01 0.36 hydrochlorothiazide | 2 0.02 0.38 ipratropium bromide | 5 0.05 0.43 magnesium chloride | 1 0.01 0.44 multivitamins general | 11 0.11 0.55 multivitamins | 1 0.01 0.56 niacinamide | 1 0.01 0.57 sodium phosphate | 2 0.02 0.59 sulfamethoxazole | 5 0.05 0.64 vitamin c | 1 0.01 0.65 atovaquone | 1 0.01 0.66 lamivudine | 1 0.01 0.67 ritonavir | 1 0.01 0.68 ethinyl estradiol | 1 0.01 0.69 . | 9,931 99.31 100.00 ------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016