“ENCLOSURE IV
V-D
The total person-years of observation in the 4 study groups
(Rongelap exposed, Ailingnae exposed, Utirik exposed, and
current unexposed group is 8280.
Rongelap exposed
25 years x 60 people
= 1500
5002194
Ailingnae exposed
25 years x 16 people
=
400
Utirik exposed _
25 years x 132 people
=
3300
Unexposed
(800-1500 series)
22 yrs x 140 peo;
=
3080