Table 5. Relative index of inequality (RII) stratified by birth cohort in urban areas.

	Survey year
Birth cohort	1999	2006	2012	trend p
	RII (95% CI)	RII (95% CI)	RII (95% CI)
Older 1963–1971	2.31* (1.77,3.00)	1.71* (1.35, 2.17)	1.61* (1.25,2.06)	0.062
Younger 1972–1979	1.63∼ (1.02,2.61)	2.06* (1.46,2.92)	1.39* (1.10,1.74)	0.179

*p<0.001.

^∼p<0.05.