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Table 1 P-values for t4 versus t4 and t5 of the 4th and the 5th degree polynomial logistic trend models, respectively; A: Japan; B: Japan excluding 10 exposed prefectures; C: 5 moderately exposed prefectures (Yamagata, Saitama, Tokyo, Kanagawa, Chiba); D: 5 highly exposed prefectures (Fukushima, Miyagi, Ibaraki, Tochigi, Iwate)

From: Response to the “Letter to the Editor” by Alfred Körblein, “Short term increase in low birthweight babies after Fukushima”

Scenario

Variable

p-values (Wald Chi2)

4th degree polynomial

5th degree polynomial

A

t4

< 0.0001

0.0080

t5

./.

0.0503

B

t4

0.0004

0.0337

t5

./.

0.0882

C

t4

< 0.0001

0.0568

t5

./.

0.1586

D

t4

0.0926

0.1616

t5

./.

0.2255

C + D

t4

0.0003

0.0538

t5

./.

0.1331