IL6 and urinary tract infection: In multivariable adjusted linear regression, placental expression of IL-6 and IL-10 was significantly associated with the number of days of maternal urinary tract infection during pregnancy (β-coefficient = 0.45, p = 0.044) and acute respiratory infection (β-coefficient = 0.50, p = 0.017), respectively, after adjustment for U-As and other potential confounders.