Table 2.

Result of redundancy elimination by correlation analysis.

Domains	1st Correlation analysis	2nd Correlation analysis
Socioeconomic status	NPOV; IWAT	NPOV
Household composition and disability	NPREG; FMLE; BLW14; PWDS	FMLE; PWDS
Literacy (Changed from minority status and language)	LIT15	LIT15
Housing and transportation	POPD; RDACS; COWN	POPD; RDACS

NPOV, Poverty; IWAT, improved water; NPREG, Number of pregnant women; FMLE, Population of females; BLW14, 14-year-olds and below; PWDS, persons with disability; LIT15, Literacy rate – 15 and over; POPD, Population density; RDACS, Road density; COWN, Car ownership.