Table 2. Results showing the proportion of non-examinees for the primary evaluation based on two logistic regression models using areas based on (i) exposure to radiation and (ii) the administrative districts.

Multivariate logistic regression model for Area (i)
	Adjusted OR	(95% CI)	P
Intercept:	0.11		<0.001
Sex:
boys	1.00		Ref.
girls	0.80	(0.79, 0.82)	<0.001
Age:
0–5	1.00		Ref.
6–10	0.27	(0.26, 0.28)	<0.001
11–15	1.28	(1.25, 1.31)	<0.001
16–	5.11	(4.98, 5.24)	<0.001
Moving:
staying (S)	1.00		Ref.
moved (M)	1.67	(1.62, 1.71)	<0.001
unknown (U)	4.66	(4.44, 4.89)	<0.001
Area:
Middle (A1)	1.00		Ref.
Lowest (A2)	2.27	(2.22, 2.31)	<0.001
Highest (A3)	0.50	(0.45, 0.55)	<0.001
Interactions:
M × A1	—		—
M × A2	—		—
M × A3	—		—
U × A1	—		—
U × A2	1.35	(1.24, 1.47)	<0.001
U × A3	—		—

Multivariate logistic regression model for Area (ii)
	Adjusted OR	(95% CI)	P
Intercept:	0.08		<0.001
Sex:
boys	1.00		Ref.
girls	0.80	(0.78, 0.81)	<0.001
Age:
0–5	1.00		Ref.
6–10	0.26	(0.25, 0.27)	<0.001
11–15	1.28	(1.25, 1.31)	<0.001
16–	5.29	(5.16, 5.43)	<0.001
Moving:
staying (S)	1.00		Ref.
moved (M)	1.72	(1.64, 1.79)	<0.001
unknown (U)	4.09	(3.81, 4.38)	<0.001
Area:
Ken-poku (B1)	1.00		Ref.
Ken-chu (B2)	1.74	(1.68, 1.79)	<0.001
Ken-nan (B3)	1.59	(1.52, 1.66)	<0.001
Aizu (B4)	5.07	(4.89, 5.25)	<0.001
Minami-aizu (B5)	4.44	(4.11, 4.79)	<0.001
Sou-sou (B6)	1.86	(1.76, 1.97)	<0.001
Iwaki (B7)	2.29	(2.22, 2.37)	<0.001
Interactions:
M × B1	—		—
M × B2	0.91	(0.85, 0.98)	0.009
M × B3	0.87	(0.79, 0.97)	0.012
M × B4	0.81	(0.75, 0.88)	<0.001
M × B5	—		—
M × B6	0.71	(0.66, 0.77)	<0.001
M × B7	—		—
U × B1	—		—
U × B2	1.50	(1.35, 1.67)	<0.001
U × B3	—		—
U × B4	1.16	(1.01, 1.34)	0.037
U × B5	2.00	(1.34, 2.98)	<0.001
U × B6	0.86	(0.74, 1.00)	0.047
U × B7	1.98	(1.77, 2.22)	<0.001

CI, confidence interval; OR, odds ratio.