Table 2.

General linear regression models for the associations between remnant cholesterol and iron status

	Model 1	Model 2	Model 3
SF, ng/ml
Each 1 mmol/L increase in RC	82.63 (75.85–89.41)	65.97 (59.35–72.58)	73.14 (65.79–80.49)
Q1 (0.01–0.19)	Reference	Reference	Reference
Q2 (0.20–0.36)	18.87 (7.02–30.72)	15.27 (4.08–26.45)	15.03 (3.76–26.29)
Q3 (0.37–0.65)	51.73 (39.92–63.54)	39.38 (28.13–50.62)	38.48 (26.90–50.05)
Q4 (0.66–8.68)	113.53 (101.65–125.42)	86.15 (74.53–97.78)	86.74 (74.05–99.43)
P for trend	< 0.001	< 0.001	< 0.001
TBI, mg/kg
Each 1 mmol/L increase in RC	1.91 (1.74–2.08)	1.42 (1.26–1.57)	1.61 (1.44–1.78)
Q1 (0.01–0.19)	Reference	Reference	Reference
Q2 (0.20–0.36)	0.68 (0.39–0.97)	0.57 (0.32–0.83)	0.57 (0.31–0.83)
Q3 (0.37–0.65)	1.56 (1.27–1.85)	1.19 (0.93–1.44)	1.16 (0.89–1.42)
Q4 (0.66–8.68)	2.96 (2.67–3.25)	2.15 (1.89–2.42)	2.21 (1.92–2.50)
P for trend	< 0.001	< 0.001	< 0.001

Model 1: unadjusted;

Model 2: adjusted for age, sex and BMI;

Model 3: adjusted for age, sex, BMI, residence, occupation, education, smoking, alcohol consumption, eGFR, LDL-C, HDL-C, average energy intake, average carbohydrate intake, average fat intake, and average protein intake

RC Remnant cholesterol, SF Serum ferritin, TBI Total body iron