IL1A and Sciatica: Conversely, there is a negative correlation between sciatica and Interleukin-1-alpha levels (p = 0.029, OR = 1.67E−05, 95% CI =8.79E−10–0.318), Interleukin-20 levels (p = 0.007, OR = 1.59E−06, 95% CI =8.95E−11–0.028), and Interleukin-33 levels (p = 0.029, OR = 7.62E−06, 95% CI =1.86E−10–0.312).