Final cluster centers for symptom domains by cluster group for sample 1 (n = 1247) and sample 2 (n = 1235).
| Regional Pain Score: No. of Pain Sites (0–19), mean (SD) | Regional Pain Score: Fatigue (VAS 0–10), mean (SD) | Patient Health Questionnaire: Somatic Symptom Severity (0–26), mean (SD) | Patient Health Questionnaire: Depressive Symptom Severity (0–27), mean (SD) | |
|---|---|---|---|---|
| Sample 1, n (%) | ||||
| Cluster 1, 724 (58.0) | 0.7 (1.2) | 1.9 (1.7) | 1.1 (1.2) | 0.8 (1.2) |
| Cluster 2, 357 (28.6) | 2.7 (1.8) | 4.3 (2.1) | 5.3 (2.0) | 5.1 (2.7) |
| Cluster 3, 94 (7.5) | 9.8 (3.2) | 4.5 (2.1) | 6.7 (2.9) | 4.1 (2.4) |
| Cluster 4, 72 (5.8) | 9.2 (4.8) | 6.7 (1.7) | 12.6 (3.4) | 11.0 (3.6) |
| Sample 2, n (%) | ||||
| Cluster 1, 694 (55.2) | 0.6 (1.1) | 1.8 (1.6) | 1.0 (1.2) | 0.7 (1.1) |
| Cluster 2, 381 (30.8) | 2.8 (2.0) | 4.2 (2.0) | 4.8 (2.1) | 4.2 (2.5) |
| Cluster 3, 108 (8.7) | 9.6 (3.3) | 4.9 (2.1) | 8.4 (3.1) | 5.1 (2.5) |
| Cluster 4, 52 (4.2) | 8.6 (4.8) | 7.0 (2.3) | 13.3 (4.8) | 13.3 (3.8) |
VAS: visual analog scale.