Frequencies for first 10,000 rows of whocomp variable in nhamcsopd2007 dataset :

who completed the patient record forms? |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                  blank |        267        2.67        2.67
                         hospital staff |      5,328       53.28       55.95
census field rep - abstract during rep  |        159        1.59       57.54
census field rep - abstract after rep p |      3,874       38.74       96.28
                                  other |         43        0.43       96.71
            multiple categories checked |        329        3.29      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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