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Table 4 Influence of the evacuation on prevalence of polycythemia in relation to smoking and obesity

From: Life as an evacuee after the Fukushima Daiichi nuclear power plant accident is a cause of polycythemia: the Fukushima Health Management Survey

    

Before

After

p*

   

  n

Number of polycythemia (%)

Number of polycythemia (%)

Total

 

Evaculation (-)

3,272

26 (0.79)

38 (1.16)

0.10

 

Evaculation (+)

7,446

66 (0.89)

115 (1.54)

<0.001

Obese

+

Evaculation (-)

945

10 (1 .06)

1 5 (1.59)

0.36

Evaculation (+)

2,364

35 (1 .48)

58 (2.45)

<0.01

-

Evaculation (-)

2,327

6 (0.69)

23 (0.99)

0.23

Evaculation (+)

5,082

31(0.61)

57 (1.12)

<0.001

Smoking

+

Evaculation (-)

335

4 (1.19)

6 (1.79)

0.50

Evaculation (+)

953

18 (1 .89)

35 (3.67)

0 < 0.01

-

Evaculation (-)

2,973

22 (0.75)

32 (1.09)

0.16

Evaculation (+)

6,493

48 (0.74)

80 (1.23)

<0.001

  1. *McNemar’s test for comparing changes in the prevalence of polycythemia in the evacuee and non—evacuee group before and after the earthquake.