Frequencies for first 10,000 rows of comstat20 variable in nhamcsed2015 dataset Composition status | code for | medication #20 | Freq. Percent Cum. -------------------+----------------------------------- Single entity drug | 29 0.29 0.29 . | 9,971 99.71 100.00 -------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 20 Nov 2017