Table 1.

Attributes and levels included in the CBC survey

Attribute	Level
Age	1. 80 years old;
	2. 50 years old;
	3. 25 years old
Disease duration	1. RA diagnosed 2 years ago;
	2. RA diagnosed 5 years ago;
	3. RA diagnosed 10 years ago
Clinical symptoms	1. Pain, swelling, stiffness somewhat better than previous visit
	2. Pain, swelling, stiffness the same as previous visit
	3. Pain, swelling, stiffness somewhat worse than previous visit
Joint damage	1. No erosions on recent x-rays
	2. No progression of erosions over the past year
	3. Some progression of erosions over the past year
Disease activity	1. DAS today is 2.0 (low);
	2. DAS today is 3.0 (moderate);
	3. DAS today is 3.8 (high)
Current treatment	1. On first TNF inhibitor
	2. On second TNF inhibitor;
	3. Failed all TNF inhibitors now on abatacept