Depression scores, however, varied with the IL-1β genotype, F(2, 466) = 4.00, p = 0.02, η2 = 0.02, with GG carriers reporting more severe depressive symptoms (M = 10.23, SE = 0.57), compared to GA carriers (M = 8.11, SE = 0.54), p = 0.02, whereas AA carriers did not significantly differ compared to the other groups. Here, IL1B is linked to major depressive disorder.