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Table 3 Influence of the evacuation on changes of Hb in relation to smoking, obesity, and weight gain

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

Sex Factors n Changes in Hb (g/d) p*
Evacuation (-) Evacuation (+)
Men Smoking (-) 3,579 0.11 0.29 <0.0001
Smoking (+) 1,048 0.09 0.27 0.008
BMI <25 kg/m2 3,180 0.10 0.30 <0.0001
BMI 25 kg/m2 1,447 0.13 0.24 0.08
Change in BM < 1 kg/m2 2,981 0.03 0.15 0.006
Change in BM 1 kg/m2 1,646 0.44 0.46 0.89
Women Smoking (-) 5,851 0.12 0.22 <0.0001
Smoking (+) 240 -0.04 0.13 0.12
BMI <25 kg/m2 4,229 0.12 0.22 0.0002
BMI 25 kg/m2 1,862 0.10 0.21 0.02
Change in BM < 1 kg/m2 4,444 0.09 0.17 0.002
Change in BM 1 kg/m2 1,647 0.22 0.31 0.13
  1. *Age—a djusted p value for comparing changes in the evacuee group to changes in the non—evacuee group before and after the earthquake.
  2. BMI, body math index; Hb, hemoglobin.