TABLE 1.
Patient Demographics and Clinical Characteristics by Pain and Fatigue Levels
| Characteristics | Pain | Fatigue | |||
|---|---|---|---|---|---|
| Overall (n = 705) |
Low (Score <5) (n = 440) |
High (Score 5–10) (n = 265) |
Low (Score <5) (n = 414) |
High (Score 5–10) (n = 291) |
|
| Male, n (%) | 549 (77.9) | 349 (79.3) | 200 (75.5) | 331 (80.0) | 218 (74.9) |
| BMI, mean (SD), kg/m2 | 25.7 (3.8) | 25.5 (3.7) | 26.0 (3.9) | 25.4 (3.6) | 26.0 (4.0) |
| Age, y | |||||
| Mean (SD) | 43.6 (12.2) | 42.2 (12.0) | 45.8 (12.4) | 42.1 (12.0) | 45.7 (12.2) |
| <65 y, n (%) | 666 (94.5) | 424 (96.4) | 242 (91.3) | 399 (96.4) | 267 (91.8) |
| Symptom duration, y | (n = 623) | (n = 390) | (n = 233) | (n = 367) | (n = 256) |
| Mean (SD) | 10.5 (9.4) | 10.4 (9.0) | 10.8 (10.1) | 10.9 (9.0) | 10.0 (9.9) |
| Disease diagnosis duration, y | (n = 648) | (n = 410) | (n = 238) | (n = 381) | (n = 267) |
| Mean (SD) | 7.3 (7.8) | 7.1 (6.9) | 7.8 (9.2) | 7.4 (7.1) | 7.2 (8.8) |
| HLA-B27 status, n (%) | (n = 487) | (n = 324) | (n = 163) | (n = 313) | (n = 174) |
| + ve, n (%) | 434 (89.1) | 290 (89.5) | 144 (88.3) | 282 (90.1) | 152 (87.4) |
| Peripheral joint involvement, n (%) | 335 (47.5) | 193 (43.9) | 142 (53.6) | 184 (44.4) | 151 (51.9) |
| Comorbid fibromyalgia, n (%) | 31 (4.4) | 10 (2.3) | 21 (7.9) | 9 (2.2) | 22 (7.6) |
| No. TNFis ever received, n (%) | |||||
| 1 | 610 (86.5) | 384 (87.3) | 226 (85.3) | 366 (88.4) | 244 (83.8) |
| 2 | 63 (8.9) | 40 (9.1) | 23 (8.7) | 35 (8.5) | 28 (9.6) |
| ≥3 | 16 (2.3) | 9 (2.0) | 7 (2.6) | 6 (1.4) | 10 (3.4) |
| Unknown | 16 (2.3) | 7 (1.6) | 9 (3.4) | 7 (1.7) | 9 (3.1) |
The bold entries indicates the n values differ from the overall n value provided in the column header.
BMI, body mass index; HLA-B27, human leukocyte antigen B27.