Table 3. RCI of nutrition inequalities (n = 6,126).

Variables	Total			Urban			Rural			Difference
	RCI	SE	95% CI	RCI	SE	95% CI	RCI	SE	95% CI
Overweight/obese adults	−0.028	0.017	−0.615, 0.006	−0.041*	0.019	−0.078, −0.004	0.084*	0.041	0.001, 0.168	0.125
Fruit and vegetable intake ≥ 500 g	0.114***	0.018	0.079, 0.150	0.091***	0.020	0.052, 0.131	0.228***	0.049	0.128, 0.327	0.136*
Use of nutrition labeling	0.128***	0.020	0.089, 0.168	0.111***	0.021	0.070, 0.152	0.169**	0.059	0.049, 0.289	0.058
Sodium intake ≤ 2,000 mg	−0.149***	0.024	−0.196, −0.102	−0.119***	0.026	−0.170, −0.683	−0.314***	0.055	−0.425, −0.202	−0.195
Fat consumption1)	0.079***	0.023	0.033, 0.124	0.085**	0.026	0.034, .0.135	0.037	0.052	−0.069, 0.143	−0.047
Healthy eating practices2)	0.105***	0.020	0.066, 1.440	0.101***	0.021	0.060, 0.142	0.092	0.052	−0.014, 0.199	−0.008

RCI, relative concentration index; CI, confidence interval.

¹⁾The criterion for fat consumption is that the contribution of the dietary intake to the total energy is 15–30% for subjects 19 years old and 15–20% for subjects ≥ 20 years; ²⁾The criteria for healthy eating practices is for individuals to meet ≥ 2 out of 4 healthy eating practices: (1) fruit and vegetable intake; (2) use of nutrition labeling; (3) sodium intake; and (4) fat consumption.

^*P < 0.05; ^**P < 0.01; ^***P < 0.001.