All patients (n=201) | CSI<40 (n=117) | CSI≥40 (n=81) | ||
PPT | ||||
Thenar | Left | 33.3±16.6 (29.8) | 37.2±18.2 (33.7) | 27.7±12.3 (23.5)* |
Right | 36.4±18.3 (32.6) | 40.7±19.1 (38.8) | 30.3±15.4 (26.8)* | |
m. trapezius | Left | 35.3±20.9 (30.0) | 38.6±20.0 (34.0) | 30.4±21.4 (24.5) |
Right | 34.8±19.8 (31.5) | 38.2±20.0 (34.4) | 30.1±18.7 (26.0)* | |
m. rectus femoris | Left | 49.7±25.2 (46.0) | 54.6±26.1 (49.1) | 42.3±21.8 (36.8)* |
Right | 47.3±26.1 42.0) | 53.2±26.6 (47.2) | 38.6±23.1 (32.0)* | |
m. abductor hallucis | Left | 33.6±17.3 (31.2) | 36.4±18.6 (33.8) | 29.3±14.1 (28.0)* |
Right | 35.1±18.8 (31.2) | 38.3±19.7 (34.5) | 30.0±16.2 (27.5)* | |
Reference area† | 33.7±20.5 (28.5) | 37.7±21.7 (31.7) | 27.8±17.4 (23.0)* | |
Most painful area | 32.4±20.8 (26.5) | 36.9±21.9 (31.4) | 25.7±17.2 (21.0)* | |
TS | ||||
Non-dominant forearm | 1.0±1.1 (0.7) | 0.8±1.0 (0.5) | 1.2±1.3 (0.8) | |
Reference area† | 1.2±1.3 (0.8) | 1.0±1.2 (0.6) | 1.5±1.3 (1.3)† | |
Most painful area | 1.4±1.5 (0.9) | 1.1±1.3 (0.7) | 1.8±1.6 (1.4)† | |
CPM | ||||
Non-dominant m. rectus femoris | −1.9±12.0 (12.0) | −2.7±13.1 (2.6) | −0.3±9.7 (1.3) | |
(−1%) | (−2%) | (2%) |
Values are presented in: mean±SD (median).
*Statistically significant difference at p<0.004 (Bonferroni correction).
†Defined as area opposite to the most painful area.
axSpA, axial spondyloarthritis; CPM, conditioned pain modulation; CSI, Central Sensitisation Inventory; PPT, pain pressure threshold; QST, quantitative sensory testing; TS, temporal summation.