Summary of measurement properties table for TJC68/SJC66.
| Author/Year | Truth Domain Match* | Feasibility* | Truth | Discrimination | ||||
|---|---|---|---|---|---|---|---|---|
| Construct Validity | Test-Retest Reliability | Interrater Reliability | Longitudinal Construct Validity | Clinical Trial Discrimination | Thresholds of Meaning | |||
| Aalbers, et al17 | + | ± | ||||||
| Chandran, et al18 | +(TJC)/−(SJC) | |||||||
| Fransen, et al19 | + | + | ||||||
| Gladman, et al20 | +(TJC)/−(SJC) | |||||||
| Gladman, et al21 | +(TJC)/−(SJC) | |||||||
| Husic, et al22 | + | |||||||
| Leung, et al23 | + | |||||||
| Lubrano, et al24 | + | |||||||
| Tillet, et al25 | − | |||||||
| Salvarani, et al13 | + | +(TJC)/−(SJC) | ||||||
| Duarte-García, et al (data analysis; unpublished) | ± | + | + | |||||
| Tillett, et al (unpublished) | + | + | ||||||
| GRAPPA and Working Group Surveys | + | + | ||||||
| Patient input | + | + | ||||||
| Thompson, et al26 | + | |||||||
| Deandrade, et al27 | + | |||||||
| Total available studies for each property | 2 | 3 | 4 | 3 | 5 | 3 | 3 | 1 |
| Total studies available for synthesis | 2 | 3 | 4 | 3 | 5 | 3 | 3 | 1 |
| Rating | Green | Green | Green | Amber | Green for TJC Amber for SJC | Green | Green | Amber |
| Overall rating for instrument across properties | Green: Working Group Is Recommending Endorsement | |||||||
The color indicates the good methods checklist/recommendation; the ± sign indicates the adequacy of the data in support of the instrument. For test-retest reliability, we have provided primary data (1 study). After identifying the gap in test-retest reliability in PsA, a hand search for test-retest reliability in RA was conducted to provide additional evidence and context about this property in the assessment of peripheral arthritis (2 studies). Some studies were excluded because the measurement properties tested did not meet the good methods checklist: Gladman, et al14 (test-retest reliability, necessary summary statistics not provided); Englbrecht, et al15 (construct validity, only tested correlation among subsets of TJC68 and SJC66); Schoels, et al16 (construct validity and longitudinal construct validity, did not test associations of interest between joint counts and other individual measures). TJC68: 68 tender joint count; SJC66: 66 swollen joint count; PsA: psoriatic arthritis; RA: rheumatoid arthritis; GRAPPA: Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.