How many patients do you need to treat to prevent one RA conversion in at-risk individuals? APPIPRA and ALTO Interception studies, long term data Number Necessary to Treat to prevent 1 RA conversion across time: 1yr = 4 2yrs = 7 3, 4, 5 yrs = 9 6 yrs = 11 #ACR25 #ABSTRACT1678 https://t.co/GBzUJG8jVk