Innate TNF-α responses in relation to increasing age in infancy.

Presented are the geometric means and 95% confidence intervals (pg/mL) for background-adjusted TNF-α responses. Mann-Whitney U tests for significant differences in log-transformed TNF-α levels compared to the “1–3 months” age group; and Spearman rho tests for significant correlations between log-transformed TNF-α levels and ordered age groups were conducted. Significance level is indicated where p* p = 0.049).♦denotes LPS co-stimulation used.