Enthesitis portends worse SpA. Data from 749 SpA pts in REGISPONSER-AS registry found 6.1% w/achilles tendinitis at baseline. Pts w/ enthesitis had worse pain, BASDAI, mBASDAI, ASDAS-CRP scores & after 2 yrs had fewer in low dz state (16 vs 31.5%) https://t.co/sChQ4WFmlW https://t.co/BkjzxCQIGF