a weak trendp = 0.13
In fact, overall, we observed a significant positive correlation between age and the number of enriched SARS-CoV-2 peptides in convalescent donors (Pearson correlation = 0.33, p = 0.014), while a weak trend in the opposite direction was observed for the number of enriched control peptides (Pearson correlation = −0.21, p = 0.13), indicating that this pattern was not due to an overall higher level of reactivity in samples from older patients.