The associations of dietary folate and serum folate with lipid profiles: findings from the national health and nutrition examination survey 2011–2016

Table 4 Threshold effect analysis of dietary folate (log transformed) on HDL-C using the segmented regression model

HDL cholesterol	Adjust β (95% CI)
The standard linear model	0.025 (–0.032, 0.082)
The segmented model
Inflection point (log transformed)	2.577
Dietary folate (log transformed) < 2.577	0.105 (0.018, 0.192)
Dietary folate (log transformed) > 2.577	–0.067 (–0.162, 0.028)
Log likelihood ratio	0.017

Adjusted for age, sex, race, education level, BMI, energy intake, total fat intake, dietary fiber intake, smoking habits, alcohol consumption, diabetes, and hypertension

ISSN: 1476-511X