Fig. 4

Mediation analysis of SII and NLR in the association between PHDI and all-cause mortality among US cancer survivors. The model was adjusted for age, sex, race/ethnicity, marital status, educational level, PIR, physical activity, alcohol use, smoke, BMI, energy, baseline year, hypertension, DM, and CVD. Abbreviations: BMI, body mass index; CVD, cardiovascular disease; DM, diabetes mellitus; NLR, neutrophil-to-lymphocyte ratio; PHDI, Planetary Health Diet Index; SII, systemic immune-inflammation index; PIR, poverty income ratio; HR, Hazard Ratio; CI, Confidence interval