Table 5.

Multiple comparison tests for Yamanashi, Toyama, and Tokyo metropolitan area.

Prefecture1	Prefecture2	Meanl	Mean2	Difference	Statistics	P-value
Yamanashi (n = 54)	Saitama (n = 1046)	2.5741	1.4713	1.1028	4.2143	0.0195*
Yamanashi	Chiba (n = 889)	2.5741	1.4848	1.0893	4.2484	0.0170*
Yamanashi	Tokyo (n = 2515)	2.5741	1.5181	1.0560	4.0972	0.0306*
Toyama (n = 101)	Saitama (n = 1046)	2.5743	1.4713	1.1029	6.9162	0.0000**
Toyama	Chiba (n = 889)	2.5743	1.4848	1.0894	6.8976	0.0000**
Toyama	Tokyo (n = 2515)	2.5743	1.5181	1.0562	6.7835	0.0000**

*P < 0.05, **P < 0.01.