Having the MUC5B promoter variant increases odds of RA-ILD w/ earlier onset in RA, esp w/ older age of RA onset. Mass Gen Biobank study of 1,005 RA pts; MUC5B found in 15% w/ incr risk of RA-ILD (OR 3.34) & RA onset after 55 yrs (OR 1.52) https://t.co/5odVWnpuxo https://t.co/zeKxADTSBZ