document.txt                                   13 October 1999

           Format of LSS Liver Cancer Incidence File
                         LIVER_99.DAT

File Name      #Records   Record    #Variables        File
                          Length     /Record          Size
                                                     (Bytes)
LIVER_99.DAT   23597       206          24         4,672,206

File Format:   ASCII text file

Creation Date:  12 October 1999

Cross-classification variables are items 1-9.
Summary variables are items 10-24.

Note:  This table includes survivors whose DS86 shielded
kerma estimates are over 4 Gy, whose DS86 dose is not known,
or who were not in the city at the time of the bombing (the
analyses in Cologne et al [Radiation Research 152:364-73,1999]
were conducted after excluding people with DS86 shielded kerma
in excess of 4 Gy, whose dose is not known, or who were not in
city). Categorical variables were defined to include all
values greater than or equal to the lower bound and less than
the upper bound. Adjusted person-years (which are migration
adjusted person years) and case weighting (which corrects for
the estimated proportion of false-positive death-certificate-only
cases) should be used to obtain the proper analyses.

Name         Description                  Cols.   Output
                                                  Format

 1)  City                                  1-5     F5.0
         1 = Hiroshima
         2 = Nagasaki

 2)  Sex                                   6-10    F5.0
         1 = Male
         2 = Female

 3)  Attained age group (in years)        11-15    F5.0
         1 =  0 - 30
         2 = 30 - 35
         3 = 35 - 40
         4 = 40 - 45
         5 = 45 - 50
         6 = 50 - 55
         7 = 55 - 60
         8 = 60 - 65
         9 = 65 - 70
        10 = 70 - 75
        11 = 75 - 80
        12 = greater than or equal to 80

 4)  Calendar Time                        16-20    F5.0
         1 = 1 Jan 1958 through 31 Dec 1959
         2 = 1 Jan 1960 through 31 Dec 1964
         3 = 1 Jan 1965 through 31 Dec 1969
         4 = 1 Jan 1970 through 31 Dec 1974
         5 = 1 Jan 1975 through 31 Dec 1979
         6 = 1 Jan 1980 through 31 Dec 1984
         7 = 1 Jan 1985 through 31 Dec 1987

 5)  Birth Cohort (year of birth)         21-25    F5.0
         1 = before 1875
         2 = 1875  -  1880
         3 = 1880  -  1885
         4 = 1885  -  1890
         5 = 1890  -  1895
         6 = 1895  -  1900
         7 = 1900  -  1905
         8 = 1905  -  1910
         9 = 1910  -  1915
        10 = 1915  -  1920
        11 = 1920  -  1925
        12 = 1925  -  1930
        13 = 1930  -  1935
        14 = 1935  -  1940
        15 = 1940 through 1945

 6)  Age at Exposure (in years)           26-30    F5.0
         1 =  0  -   5
         2 =  5  -  10
         3 = 10  -  15
         4 = 15  -  20
         5 = 20  -  25
         6 = 25  -  30
         7 = 30  -  35
         8 = 35  -  40
         9 = 40  -  45
        10 = 45  -  50
        11 = 50  -  55
        12 = 55  -  60
        13 = greater than or equal to 60

 7) Radiation Dose to Liver (Sv, RBE=10)  31-35    F5.0
         1 = unknown dose
         2 = 0 (not in city at time of bombing)
         3 = 0  -  0.001
         4 = 0.001  -  0.010
         5 = 0.010  -  0.100    
         6 = 0.100  -  0.200    
         7 = 0.200  -  0.500    
         8 = 0.500  -  1.000    
         9 = 1.000  -  1.500    
        10 = 1.500  -  2.000    
        11 = 2.000  -  3.000    
        12 = 3.000  -  4.000    
        13 = 4.000  -  5.000
        14 = 5.000  -  6.000
        15 = greater than or equal to 6.000

 8) Distal indicator                      36-40    F5.0
         0 = less than 3 km at time of exposure
         1 = 3 km or more at time of exposure

 9) Exposure indicator                    41-45    F5.0
         1 = dose unknown
         2 = kerma less than 4 Gray
         3 = kerma greater than equal to 4 Gray

10) Number of liver cancer cases          46-52    F7.0

11) Number of persons entering study      53-59    F7.0

12) Person-years at risk                  60-71    F12.3

13) Migration adjusted                    72-83    F12.3
    person-years at risk

14) Mean calendar year                    84-95    F12.3

15) Mean year of birth                    96-107   F12.3

16) Case weight adjusting for             108-117  F10.5
    estimated proportion of false-positive DCO cases

17) Mean attained age (in years)          118-127  F10.5

18) Mean age at exposure (in years)       128-137  F10.5

19) Mean years since exposure             138-147  F10.5

20) Mean liver dose (Sv, RBE=10)          148-157  F10.5

21) Mean adjusted liver dose              158-167  F10.5
    correcting for regression bias
    due to random uncertainties in dose estimates

22) Liver dose: mean total gamma          168-177  F10.5
    component (Gy)

23) Liver dose: mean total neutron        178-187  F10.5
    component (Gy)

24) Mean whole body dose (kerma, Gray)    188-197  F10.5

 Note: Means in 15) to 24) above are person-year weighted,
 cell-specific averages over the people at risk in the
 cell.