PFAS and pulmonary arterial hypertension: The Q-gcomp sensitivity analysis using imputed datasets revealed that one quartile increases in PFAS (β = −29.9; 95%CI: −34.8, −24.9), metal (β = −49.8; 95%CI: −56.2, −43.4), and PAH (β = −10.4; 95%CI: −16.6, −4.3) mixtures were statistically significantly associated with decreases in RBC folate after adjustment (Figure 5).