Analysis of the association between areal socioeconomic deprivation levels and viral hepatitis B and C infections in Japanese municipalities

Table 3 Results of principal component analysis

Socioeconomic characteristics	Variable loadings
Socioeconomic characteristics	PC 1	PC 2	PC 3	PC 4
Proportion of fatherless households	− 0.570	0.657	− 0.084	0.214
Proportion of divorced persons	− 0.256	0.846	0.160	0.206
Proportion of persons with low educational level	0.780	0.397	0.097	0.212
Proportion of labourers	0.473	0.433	0.623	− 0.398
Proportion of unemployed persons	− 0.379	0.609	− 0.387	− 0.535
Taxable income per capita	− 0.609	− 0.615	0.307	− 0.145
Proportion of households living in rental housing	− 0.800	0.085	0.423	0.118
Eigenvalue	1.542	1.500	0.924	0.783
Proportion of variance explained	0.339	0.321	0.122	0.088
Cumulative proportion of variance explained	0.339	0.661	0.783	0.870

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