Frequencies for first 10,000 rows of los variable in nhamcsed2009 dataset :

         if |
  admitted, |
  length of |
    stay in |
   hospital |
     (days) |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |        127        1.27        1.27
         -7 |      8,552       85.52       86.79
          1 |         66        0.66       87.45
          2 |        241        2.41       89.86
          3 |        253        2.53       92.39
          4 |        188        1.88       94.27
          5 |        156        1.56       95.83
          6 |        110        1.10       96.93
          7 |         63        0.63       97.56
          8 |         62        0.62       98.18
          9 |         34        0.34       98.52
         10 |         26        0.26       98.78
         11 |         18        0.18       98.96
         12 |         20        0.20       99.16
         13 |         12        0.12       99.28
         14 |         16        0.16       99.44
         15 |          5        0.05       99.49
         16 |          8        0.08       99.57
         17 |          2        0.02       99.59
         18 |          6        0.06       99.65
         19 |          2        0.02       99.67
         20 |          2        0.02       99.69
         21 |          1        0.01       99.70
         22 |          4        0.04       99.74
         23 |          6        0.06       99.80
         24 |          1        0.01       99.81
         26 |          2        0.02       99.83
         27 |          1        0.01       99.84
         28 |          6        0.06       99.90
         29 |          2        0.02       99.92
         31 |          1        0.01       99.93
         32 |          2        0.02       99.95
         35 |          2        0.02       99.97
         37 |          1        0.01       99.98
         47 |          1        0.01       99.99
         71 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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