Work productivity loss from presenteeism in psoriatic arthritis (PsA) participants with low and high fatigue as measured by BASDAI#1.
| WLQ Scales | Unadjusted Mean WLQ ± SD | Adjusted for Age, Sex, and Psoriatic Disease Activity* | Adjusted for Age, Sex, Psoriatic Disease Activity*, and Depressed Mood | ||||
|---|---|---|---|---|---|---|---|
| Low Fatigue | High Fatigue | p | Increase in WLQ for Each 1 Point Increase in BASDAI#1 ± SE | p | Increase in WLQ for Each 1 Point Increase in BASDAI#1 ± SE | p | |
| WLQ productivity loss | 3.8 ± 4.3 | 8.5 ± 5.1 | < 0.001 | 0.92 ± 0.20 | < 0.001 | 0.82 ± 0.18 | 0.002 |
| Time management | 21.8 ± 27.8 | 39.5 ± 27.4 | < 0.001 | 3.34 ± 1.12 | 0.004 | 3.00 ± 1.10 | 0.127 |
| Mental-interpersonal | 10.7 ± 13.9 | 26.0 ± 22.3 | < 0.001 | 2.87 ± 1.03 | 0.007 | 2.91 ± 0.69 | < 0.001 |
| Output | 9.1 ± 19.2 | 30.4 ± 27.3 | < 0.001 | 3.27 ± 0.72 | < 0.001 | 3.70 ± 0.69 | 0.004 |
| Physical demands | 23.5 ± 26.2 | 30.4 ± 27.3 | < 0.001 | 4.20 ± 1.03 | < 0.001 | 2.63 ± 1.03 | 0.048 |
↵* Psoriatic activity measures included tender joint count, swollen joint count, enthesitis count, inflammatory back pain, PGA × BSA, and psoriasis pain and itch. WLQ: Work Limitations Questionnaire; BASDAI: Bath Ankylosing Spondylitis Disease Activity Index; PGA × BSA: the product of physician global assessment (PGA) and body surface area (BSA).