an increasing trendp < 0.01
There was evidence of an increasing trend in the odds of having high ALT across PFOA quintiles ( p < 0.01), with the highest ORs observed in the fourth quintile compared to the first (cumulative PFOA OR = 1.20, 95% CI: 1.06, 1.35; 2005/2006 PFOA OR = 1.16, 95% CI: 1.03, 1.31).