Time point | Affected prefecture | Unaffected areas* | Interaction term vs unaffected areas* | p Value for interaction term |
---|---|---|---|---|
Fukushima, boys (n=646) | ||||
October 2010 | 0 | 0 | 0 | – |
April 2011 | +0.074 | +0.036 | +0.040 | 0.29 |
October 2011 | −0.035 | −0.043 | +0.011 | 0.78 |
April 2012 | +0.154 | +0.116 | +0.041 | 0.28 |
October 2012 | +0.282 | +0.148 | +0.137 | 0.0003 |
Fukushima, girls (n=597) | ||||
October 2010 | 0 | 0 | 0 | – |
April 2011 | +0.110 | +0.021 | +0.087 | 0.023 |
October 2011 | +0.014 | −0.030 | +0.042 | 0.27 |
April 2012 | +0.180 | +0.056 | +0.122 | 0.0013 |
October 2012 | +0.290 | +0.088 | +0.200 | <0.0001 |
Miyagi, boys (n=904) | ||||
October 2010 | 0 | 0 | 0 | – |
April 2011 | +0.086 | +0.036 | +0.048 | 0.14 |
October 2011 | −0.117 | −0.043 | −0.076 | 0.018 |
April 2012 | −0.047 | +0.116 | −0.165 | <0.0001 |
October 2012 | −0.069 | +0.148 | −0.218 | <0.0001 |
Miyagi, girls (n=854) | ||||
October 2010 | 0 | 0 | 0 | – |
April 2011 | +0.085 | +0.021 | +0.061 | 0.057 |
October 2011 | −0.084 | −0.030 | −0.057 | 0.077 |
April 2012 | +0.033 | +0.056 | −0.026 | 0.42 |
October 2012 | +0.009 | +0.088 | −0.082 | 0.011 |
Iwate, boys (n=483) | ||||
October 2010 | 0 | 0 | 0 | – |
April 2011 | +0.200 | +0.036 | +0.165 | <0.0001 |
October 2011 | −0.004 | −0.043 | +0.040 | 0.32 |
April 2012 | +0.135 | +0.116 | +0.020 | 0.62 |
October 2012 | +0.152 | +0.148 | +0.006 | 0.88 |
Iwate, girls (n=458) | ||||
October 2010 | 0 | 0 | 0 | – |
April 2011 | +0.146 | +0.021 | +0.124 | 0.0019 |
October 2011 | +0.028 | −0.030 | +0.057 | 0.15 |
April 2012 | +0.095 | +0.056 | +0.038 | 0.33 |
October 2012 | +0.123 | +0.088 | +0.034 | 0.40 |
All values are reported as kg/m2.
*Unaffected refers to Yamagata, Akita and Aomori prefectures in northeast Japan.