Commonly captured items in the literature, their frequency and the number of different instruments (i.e. how) used to collect the information
| Item | Frequency of collection | Number of instruments |
|---|---|---|
| Age | 67/67 (100%) | 1 |
| Gender | 67/67 (100%) | 1 |
| Current DMARD | 63/67 (94%) | 7 |
| Disease Duration | 62/67 (93%) | 1 |
| Composite Score of Disease Activity | 61/67 (91%) | 8 |
| Serology | 60/67 (90%) | 4 |
| Tender Joint Count | 58/67 (87%) | 5 |
| Swollen Joint Count | 58/67 (87%) | 5 |
| Acute phase reactants | 58/67 (87%) | 2 |
| Physical Function | 55/67 (81%) | 5 |
| Steroids | 53/76 (79%) | 5 |
| Patient Global | 52/67 (78%) | 6 |
| Pain | 48/67 (72%) | 4 |