Table 4 Baseline differences between each latent profile derived cluster using QST in chronic low back pain
Variable | Sensitized | Not sensitized | p-value |
|---|---|---|---|
Low back pain intensity | 6.17 (5.00, 7.25) | 5.33 (4.33, 6.67) | 0.07 |
Oswestry disability index | 30 (20, 40) | 26 (16, 34) | 0.1 |
sex | 0.1 | ||
Female | 22 (58%) | 36 (40%) | |
Male | 16 (42%) | 53 (60%) | |
Age | 44 (39, 50) | 47 (39, 54) | 0.2 |
Depression | 3.75 (2.12, 5.50) | 4.00 (1.00, 6.00) | 0.8 |
Catastrophization | 4.00 (2.00, 6.00) | 3.75 (2.00, 5.50) | 0.6 |
Anxiety | 5 (1, 7) | 4 (2, 5) | 0.3 |
Regional pressure pain threshold | 266 (194, 387) | 586 (399, 697) | < 0.001 |
Regional heat pain threshold | 40.6 (38.9, 43.2) | 42.6 (40.0, 45.6) | < 0.01 |
Remote pressure pain threshold | 13 (10, 17) | 14 (10, 18) | 0.4 |
Remote pressure pain tolerance | 35 (29, 43) | 59 (50, 75) | < 0.001 |
Temporal summation | 0.62 (0.08, 1.23) | 0.90 (0.27, 1.52) | 0.1 |
Conditioned pain modulation | 3 (− 1, 6) | 5 (0, 12) | 0.03 |