Characteristics of patients with PsA at first mFSS administration.
| Variable | Summary Information | Missing |
|---|---|---|
| Patients, no. | 390 | |
| No. of men (%) | 231 (59.2) | |
| No. of women (%) | 159 (40.8) | |
| Mean age, years (SD) | 48.3 (12.3) | |
| Mean arthritis duration, years (SD) | 12.9 (9.9) | |
| Laboratory measures | ||
| Mean ESR, mm/h (SD) | 22.2 (19) | 32 |
| Mean hemoglobin (Hgb), g/l (SD) | 135.9 (14.1) | 28 |
| No. with raised ESR values (%) | 180 (50.3) | 32 |
| No. anemic (%) | 66 (18.2) | 28 |
| Clinical measures | ||
| Median no. of active joints (IQR) | 4 (1, 11) | |
| Median number of swollen joints (IQR) | 1 (0, 3.75) | |
| Median number of clinically deformed joints (IQR) | 2 (0, 8) | 1 |
| Median PASI score (IQR) | 3 (0.9, 6.45) | 15 |
| Mean grip strength in both hands, mm Hg (SD) | 244.5 (71.7) | 15 |
| No. with morning stiffness (%) | 235 (60.9) | 4 |
| No. with mild or no disease activity (%) | 39 (10) | |
| No. with moderate disease activity (%) | 144 (36.9) | |
| No. with severe disease activity (%) | 207 (53.1) | |
| Patient-reported measures of functional status | ||
| Median HAQ (IQR) | 0.5 (0.125, 1.125) | 32 |
| Mean SF-36 pain scale (SD) | 49.8 (25.2) | 22 |
| Mean SF-36 mental health scale (SD) | 69.1 (20.1) | 31 |
| Mean mFSS (SD) | 4.85 (2.81) | |
| No. with mild or no fatigue (%) | 201 (51.5) | |
| No. with moderate fatigue (%) | 87 (22.3) | |
| No. with severe fatigue (%) | 102 (26.2) | |
| Comorbidities | ||
| No. ever hypertensive (%) | 100 (25.6) | |
| No. ever had cancer (%) | 15 (5.1) | 94 |
PsA: psoriatic arthritis; mFSS: modified Fatigue Severity Scale; PASI: Psoriasis Area and Severity Index; HAQ: Health Assessment Questionnaire; SF-36: Medical Outcomes Study Short Form-36; Raised ESR: > 15 mm/h for men and > 20 mm/h for women; anemia: Hgb < 130 g/l for men and Hgb < 120 g/l for women; disease activity low (no. of active joints ≤ 1 and PASI ≤ 1), moderate (no. of active joints ≤ 5 and PASI < 8), and high (no. of active joints > 5 and PASI ≥ 8; level of fatigue: mild (mFSS < 5), moderate (mFSS ≥ 5 and < 7), and severe (mFSS ≥ 7). ESR: erythrocyte sedimentation rate. IQR: interquartile range.