Summary statistics for drug2017q4 dataset :

by Jean Roth , jroth@nber.org , 19 Jun 2018

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |  1,213,842    1.55e+08    1.29e+08   3.94e+07   1.41e+09
      caseid |  1,213,842    1.39e+07    791194.3    3937953   1.45e+07
    drug_seq |  1,213,842     6.18837    8.998557          1        272
    role_cod |          0
    drugname |          0
-------------+---------------------------------------------------------
     prod_ai |          0
     val_vbm |  1,213,842    1.018879    .1360974          1          2
       route |          0
    dose_vbm |          0
cum_dose_chr |     31,867    93491.64    1.14e+07          0   2.04e+09
-------------+---------------------------------------------------------
cum_dose_u~t |          0
      dechal |          0
      rechal |          0
     lot_num |          0
      exp_dt |      3,818    21603.75    930.4884     -15190      26122
-------------+---------------------------------------------------------
   exp_dtstr |          0
 exp_dt_mult |  1,213,842    .0000173    .0041593          0          1
     nda_num |    420,523    1.43e+08    1.91e+10          0   3.40e+12
    dose_amt |    499,645    11838.25     8064068          0   5.70e+09
   dose_unit |          0
-------------+---------------------------------------------------------
   dose_form |          0
   dose_freq |          0

by Jean Roth , jroth@nber.org , 19 Jun 2018