Dose rate, Gy/day

0 ^a

0.003^b

Reduction in hazard rate k in irradiated dogs (n-fold values for identical exponential numbers)

Subgroup and

exponent numbers

exp 1

exp 2

exp 1

exp 2

exp 1

exp 2

WO

k_WO

0.072

1.22

0.025

0.79

2.9

1.5

R ± SE_R

n

0.96*** ± 0.018

19

0.95*** ± 0.04

6

0.73*** ± 0.16

19

0.95*** ± 0.035

8

W

k_W

0.028

1.22

0.014

0.88

2.06

1,39

R ± SE_R

n

0.84*** ± 0.061

22

0.96*** ± 0.032

5

0.81*** ± 0.13

22

0.99*** ± 0.005

7

Ratio k_WO /k_W (n-fold)

2.6

1.0

1.8

0.9

Ratio k_WO/k_W (n-fold)