Table 3.

Change in coronary heart disease risk factors by educational level, with comparison of RII.

Risk factors	Year	Low education	High education	RII (95% CI)	P for RII change*
Current smokers, %	2008	19.83	16.56	0.80 (0.74, 0.87)	0.956
	2013	15.50	13.26	0.83 (0.75, 0.91)
Alcohol drinking, %	2008	23.32	20.82	0.86 (0.80, 0.93)	0.375
	2013	24.23	22.31	0.89 (0.83, 0.97)
Physical activity, %	2008	88.17	90.09	1.22 (1.10, 1.35)	0.879
	2013	88.74	91.14	1.31 (1.17, 1.45)
Overweight, %	2008	54.70	48.22	0.77 (0.73, 0.82)	0.977
	2013	53.49	47.31	0.77 (0.73, 0.83)
Hypertension, %	2008	49.03	44.47	0.83 (0.78, 0.88)	0.073
	2013	64.53	58.39	0.76 (0.71, 0.81)
Hyperlipidemia, %	2008	45.52	47.31	1.07 (1.01, 1.14)	0.551
	2013	47.64	49.31	1.06 (1.00, 1.13)
Diabetes, %	2008	16.99	14.84	0.85 (0.78, 0.93)	0.729
	2013	20.73	17.67	0.82 (0.76, 0.89)
Hypotensive drug, %	2008	50.73	55.65	1.22 (1.11, 1.34)	0.249
	2013	52.94	55.27	1.10 (1.01, 1.19)
Anti-hyperlipidemia drug, %	2008	17.62	19.43	1.13 (1.01, 1.27)	0.169
	2013	24.99	29.24	1.25 (1.13, 1.38)
Hypoglycemic drug, %	2008	46.82	50.46	1.16 (0.99, 1.35)	0.455
	2013	52.54	53.56	1.04 (0.90, 1.21)

Abbreviation: RII, relative index of inequality. Variables were presented as age-standardized prevalence rate.

^*Test for change in inequality between 2008 and 2013.