Frequencies for first 10,000 rows of rftrans variable in nhamcsed2007 dataset :

                    reason for transfer |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  blank |          4        0.04        0.04
       not applicable - not transferred |      9,825       98.25       98.29
continuity of care; request by patient, |         14        0.14       98.43
higher level or specialized care needed |         84        0.84       99.27
psychiatric, mental health, or substanc |         58        0.58       99.85
              pediatric facility needed |          8        0.08       99.93
          insurance requirement/request |          4        0.04       99.97
other or insufficient information avail |          3        0.03      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016