Before/After

Standard Incidence Ratio (n)

Nuclear Plant

Plant Startup

Before Start

After Start

Change

Haddam Neck CT

Millstone CT

Duane Arnold IA

Ft. Calhoun IA

TOTAL

1950-67 1968-84

1950-70 1971-84

1969-74 1975-84

1969-73 1974-84

0.94 (36)

0.69 (64)

0.92 (23)

0.52 (1)

0.785 (124)

1.03 (76)

0.79 (90)

1.13 (77)

0.92 (6)

0.950 (249)

+9

+10

+21

+40

+16.5 p < 0.05