Table 2 Comparison of selected biomedical and health behavioral characteristics and lifestyle change scores between Kawauchi village affected by the 2011 Fukushima Daiichi nuclear plant disaster and Ono town at baseline (2010)

Number of participants

339

598

 Age (years)

68.5 (9.8)

66.3 (9.1)

0.001

 Sex (male/female)

160/179

285/313

< 0.001

 Body weight (kg)

56.2 (9.9)

56.2 (9.3)

0.997

 BMI (kg/m²)

23.7 (3.3)

23.2 (2.9)

0.012

 Systolic blood pressure

134.4 (17.4)

125.7 (14.3)

< 0.001

 Diastolic blood pressure

75.8 (10.5)

78.1 (9.7)

< 0.001

Biochemical variables

 Fasting plasma glucose (mg/dL)

92.8 (9.3)

95.9 (9.0)

< 0.001

 Hemoglobin A1c (%)

5.47 (0.31)

5.45 (0.31)

0.408

 Triglyceride (mg/dL)

89.8 (41.6)

104.5 (80.4)

0.002

 HDL-cholesterol

59.6 (14.4)

58.8 (13.8)

0.397

 LDL-cholesterol

114.1 (25.6)

120.4 (28.3)

0.001

 γ-GTP (IU/L)

28.6 (29.9)

30.8 (34.6)

0.329

 Uric acid

5.0 (1.4)

 Hemoglobin (g/dL)

13.7 (1.4)

13.4 (1.2)

0.071

 Keeping body weight gain > 10 kg compared with weight at 20 years old (%)

33.5%

30.1%

0.344

 Keeping body weight gain or loss within 3 kg compared with weight in the last year (%)

25.2%

20.4%

0.130

 Currently smoking (%)

11.8%

13.9%

0.362

 Drinking everyday (%)

24.2%

27.9%

< 0.001

 Regular exercise: ≥ 30 min/time and ≥ 2 times/week for 1 year or more (%)

37.9%

35.2%

0.473

 Walking at least 1 h/day (%)

48.4%

40.5%

0.036

 Restful sleep: getting enough rest by sleep (%)

71.9%

77.5%

0.089

 Late-night dinners: ≥ 3 times/week (%)

21.8%

27.4%

0.094

 Lifestyle change score (n = 216 for Kawauchi village and n = 456 for Ono village)

0.21 (1.34)

−0.04 (1.27)

0.016

 Difference of BMI

0.68 (1.42)

0.21 (0.79)

< 0.001