Table 3 Mediation effects of dietary sodium on NAFLD with CRP and red cell distribution width as mediators.

	Without adjustment for β-carotene			With adjustment for β-carotene
	Estimates^a	95% CIs	P-values	Estimates^b	95% CIs	P-values
HSI-defined NAFLD
CRP
Total effect	0.0662	0.0497–0.0862	<0.0001	0.0683	0.0492–0.0844	<0.0001
Direct effect	0.0605	0.0402–0.0788	<0.0001	0.0633	0.0432–0.0775	<0.0001
Indirect effect	0.0057	0.0021–0.0091	<0.0001	0.0050	0.0021–0.0083	<0.0001
Red cell distribution width
Total effect	0.0675	0.0483–0.0883	<0.0001	0.0676	0.0534–0.0826	<0.0001
Direct effect	0.0663	0.0478–0.0869	<0.0001	0.0665	0.0529–0.0819	<0.0001
Indirect effect	0.0012	0.0002–0.0027	<0.0001	0.0011	0.0002–0.0022	0.0400
FLI-defined NAFLD
CRP
Total effect	0.0686	0.0374–0.1010	<0.0001	0.0752	0.0481–0.1072	<0.0001
Direct effect	0.0605	0.0322–0.0918	<0.0001	0.0680	0.0402–0.0992	<0.0001
Indirect effect	0.0081	0.0024–0.0162	<0.0001	0.0072	0.0009–0.0121	<0.0001
Red cell distribution width
Total effect	0.0701	0.0383–0.0981	<0.0001	0.0747	0.0501–0.1072	<0.0001
Direct effect	0.0692	0.0384–0.0967	<0.0001	0.0739	0.0490–0.1071	<0.0001
Indirect effect	0.0009	−0.0001 to 0.0027	0.0800	0.0008	−0.0004 to 0.0019	0.2000

CI confidence interval, CRP c-reactive protein, FLI fatty liver index, HSI hepatic steatosis index.
^aAdjusted for age, sex, ethnicity, education level, family monthly poverty level, smoking, drinking, sedentary time, total energy intake, dietary inflammatory index, and serum creatinine.
^bAdjusted for age, sex, ethnicity, education level, family monthly poverty level, smoking, drinking, sedentary time, total energy intake, dietary inflammatory index, serum creatinine, and dietary β-carotene.

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