highly significantP < 0.0001
However, among the 620 compounds in the bottom 90% for all three stressors in the cell screen, only 40 were in the top 10% for increased worm lifespan in the results of Ye and colleagues (6.5%), indicating a highly significant association between induction of cellular stress resistance and C. elegans longevity ( P < 0.0001, Fisher’s exact test).