Fig. 2From: Dietary quality and dietary greenhouse gas emissions in the USA: a comparison of the planetary health diet index, healthy eating index-2015, and dietary approaches to stop hypertensionPredicted greenhouse gas emissions by quintile of Planetary Health Diet Index (PHDI), Healthy Eating Index-2015 (HEI-2015), and Dietary Approaches to Stop Hypertension (DASH), National Health and Nutrition Examination Survey 2015–2018** Poisson regression models adjusted for total energy intake†*p < 0.01, **p < 0.001 for the difference from Quintile 1. With the application of the Bonferroni correction statistical significance is defined as p < 0.0125 (0.05/4 comparisons = 0.0125)Back to article page