Figure 1.
Multivariable adjusted hazard ratios and 95% confidence intervals for incident dyslipidemia according to the continuous plant-based diet index using restricted cubic splines. The histogram in gray shows the distribution of plant-based diet scores. The solid lines represent the multivariable adjusted hazard ratios for incident dyslipidemia, modeled using restricted cubic splines with 4 knots (5th, 35th, 65th, 95th percentiles). The reference was point was set at the 5th percentile of each score. The dashed lines represent 95% confidence intervals. (A) Overall plant-based diet score, (B) healthful plant-based diet score, (C) unhealthful plant-based diet score. Hazard ratios were adjusted for age (year, continuous), sex (men/women), residence area (rural/urban), education (≤6, 7–12, >12 years), physical activity (MET/day, continuous), pack-years of cigarettes (continuous), alcohol intake (g/day, continuous), body mass index (kg/m2, continuous), and total energy intake (kcal/day, continuous).