Summary statistics for drug2012q4 dataset :

by Jean Roth , jroth@nber.org , 19 Apr 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |    509,100    9.38e+07    6.44e+07   3.45e+07   8.81e+08
      caseid |    509,100     8729826    391555.6    3448328    9185646
    drug_seq |    509,100    5.461744    9.044044          1        286
    role_cod |          0
    drugname |          0
-------------+---------------------------------------------------------
     val_vbm |    509,099    1.051515     .221045          1          2
       route |          0
    dose_vbm |          0
cum_dose_chr |     12,895    962044.7    5.28e+07       .055   3.00e+09
cum_dose_u~t |          0
-------------+---------------------------------------------------------
      dechal |          0
      rechal |          0
     lot_num |          0
      exp_dt |      1,375    19691.01    13254.45    -345339     347994
   exp_dtstr |          0
-------------+---------------------------------------------------------
 exp_dt_mult |    509,100    .0000825    .0090825          0          1
     nda_num |    182,201    65142.39    82946.89          0     999999
  nda_numstr |          0
    dose_amt |    228,973    2053.343    426204.2          0   1.90e+08
 dose_amtstr |          0
-------------+---------------------------------------------------------
dose_amt_m~t |    509,100    .0004086    .0202089          0          1
   dose_unit |          0
   dose_form |          0
   dose_freq |          0

by Jean Roth , jroth@nber.org , 19 Apr 2017