Table 1. Spearman Correlation Coefficients for Area-Level Variables (n = 47).

	Mean	SD	Range	a)	b)	c)	d)	e)	f)
a) Single-mother households (%)	6.57	0.89	5.29–10.69	1
b) Three-generation households (%)	13.38	5.72	3.63–28.13	-0.32*	1
c) College enrollment (%)	43.58	7.10	29.90–56.20	-0.49***	-0.23	1
d) Abortion rate(‰)	13.01	3.32	5.60–19.10	0.39**	0.27	-0.58***	1
e) Juvenile crime rate (‰)	12.86	3.27	6.56–20.09	-0.05	-0.10	0.30*	0.05	1
f) Per capita annual income (million JPY)	2.86	0.44	2.11–4.64	-0.70***	-0.04	0.67***	-0.57***	0.21	1

Abbreviation: SD, standard deviation

* p <0.05

** p <0.01

*** p <0.001