Frequencies for first 10,000 rows of comstat19 variable in nhamcsed2015 dataset Composition status | code for | medication #19 | Freq. Percent Cum. -------------------+----------------------------------- Single entity drug | 30 0.30 0.30 Combination drug | 3 0.03 0.33 Undetermined | 1 0.01 0.34 . | 9,966 99.66 100.00 -------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 20 Nov 2017