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Table 1 Pertinent metrics according to variance weighted linear regression of the prefecture-specific 2012 jump ORs in LBWp trends on μSv/h for the data of Table 2 and Table 3 in [2] by regression type and prefecture stratification vs. no stratification

From: Response to the “letter to the editor” by Sani Rachman Soleman et al., “spatiotemporal association of low birth weight with Cs-137 deposition at the prefecture level in Japan after the Fukushima nuclear power plant accidents”

Regression type

variance weighted linear regression of 2012 jump OR in LBWp on μSv/h

37 not or lesser contaminated prefectures combined (n = 11)

individual prefectures (n = 47)

un-restricted regression

estimate

0.0847

0.0831

standard error

0.0248

0.0313

p-value

0.0078

0.0110

R2

0.5637

0.1353

restricted regression

OR = 1

estimate

0.1026

0.1060

standard error

0.0156

0.0235

p-value

<  0.0001

<  0.0001

R2

0.9998

0.9989

restriction p-value

0.3762

0.2744