Frequencies for first 10,000 rows of stay24 variable in nhamcsed2012 dataset :

     ED discharge greater than 24 hours |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
Patient was discharged from ED in more  |         99        0.99        0.99
Patient was discharged from ED in 24 ho |      9,214       92.14       93.13
Missing data for ED discharge date and/ |        687        6.87      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016