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Table 1 Means or prevalence for baseline characteristics of participants in this study

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

  Total (n = 10,718)
Baseline characteristics Evacuees Non—evacuees pvalue***
n 7,446 3   3,272   
Age (years) 66.3 ±9.8** 69.8 ±8.8** 0.01
Sex (% women) 56.0   58.8   <0.01
Body mass index (kg/m2) 23.7 ±3.3** 23.4 ±3.3** <0.01
Overweight* (%) 31.8   28.9   <0.01
Hypertension (%) 54.5   57.7   <0.01
Diabetes Mellitus (%) 10.7   9.4   0.04
Current smoker (%) 12.8   10.2   <0.001
Current drinker (%) 23.7   20.5   <0.001
  1. *Body mass index ≥ 25.0 kg/m2; **Standard deviaion; ***Student t—tests or chi—squared tests.