Scores of enthesitis (clinical and US) among different diagnoses.
| Score Types | PsA, n = 140 | Psoriasis, n = 51 | FMS, n = 51 | p |
|---|---|---|---|---|
| LEI painful | 1 (0–2) | 0 (0–2) | 3 (2–4) | < 0.0001 |
| LEI swollen | 0 (0–0) | 0 (0–0) | 0 (0–0) | 0.03 |
| LEI painful + swollen | 1 (0–3) | 0 (0–2) | 3 (2–4) | < 0.0001 |
| MASES | 1 (0–6) | 0 (0–4) | 7 (3–11) | < 0.0001 |
| MASES upper body | 0 (0–3) | 0 (0–2) | 5 (2–9) | < 0.0001 |
| MASES legs | 0 (0–2) | 0 (0–1) | 1 (0–3) | ns |
| B-mode chronic lesions* | 2 (0–5) | 2 (1–4) | 0 (0–1) | < 0.0001 |
| B-mode acute lesions** | 3 (1–6.75) | 2 (0–5) | 1 (0–3) | < 0.0001 |
| B-mode chronic + acute lesions | 6 (3.25–11) | 4 (2–9) | 2 (0–5) | < 0.0001 |
| PD abnormalities | 1 (0–5) | 0 (0–2) | 0 (0–1) | 0.001 |
| PD lesions, n (%) | 83 (59) | 24 (47) | 18 (35) | 0.01 |
| + (1–3 vessels) | 38 (27) | 15 (29) | 11 (22) | |
| ++ (4–5 vessels) | 25 (18) | 6 (12) | 4 (8) | |
| +++ (> 5 vessels) | 20 (14) | 3 (6) | 3 (6) |
Scores are reported as median (25th percentile–75th percentile), except where indicated.
↵* Bony erosions, calcifications, and enthesophytes.
↵** Entheseal thickening, entheseal hypoechogenicity, peritendon hypoechogenicity, and bursal enlargement. FMS: fibromyalgia syndrome; LEI: Leeds Enthesitis Index; MASES: Maastricht Ankylosing Spondylitis Enthesitis Score; PD: power Doppler; PsA: psoriatic arthritis; US: ultrasonography; ns: not significant.