Ab0374 #ACR22 BASDAI during pregnancy: 50 pregnant women w/ AS vs controls AUC for BASDAI in 1st trimester: 0.74, max value for morning stiffness severity (0.9) & duration (0.8) In 2nd and 3rd trimester: AUC for fatigue and back pain <0.5, morning stiffness remains 0.8 @RheumNow https://t.co/ZQyB37dDxX