Summary statistics for drug2015q4 dataset :

by Jean Roth , jroth@nber.org , 6 Apr 2017

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   primaryid |  1,065,668    1.24e+08    8.74e+07   3.79e+07   1.18e+09
      caseid |  1,065,668    1.15e+07      603332    3790999   1.20e+07
    drug_seq |  1,065,668    5.337956    7.085313          1        196
    role_cod |          0
    drugname |          0
-------------+---------------------------------------------------------
     prod_ai |          0
     val_vbm |  1,065,668    1.025881    .1587816          1          2
       route |          0
    dose_vbm |          0
cum_dose_chr |     26,489     80923.6     9014514     -26400   1.47e+09
-------------+---------------------------------------------------------
cum_dose_u~t |          0
      dechal |          0
      rechal |          0
     lot_num |          0
      exp_dt |      3,150     20802.6    1120.285     -21914      23619
-------------+---------------------------------------------------------
   exp_dtstr |          0
 exp_dt_mult |  1,065,668    .0000235    .0048434          0          1
     nda_num |    417,825    7.48e+07    1.23e+10          0   2.29e+12
    dose_amt |    472,697    497.3247    94953.02          0   6.00e+07
   dose_unit |          0
-------------+---------------------------------------------------------
   dose_form |          0
   dose_freq |          0

by Jean Roth , jroth@nber.org , 6 Apr 2017