Table 3.
Relationship between number of digital colour changes and baseline thermographic assessment
| Diagnosis | Thermographic assessment | Number of digital colour changes reported | |||
|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | ||
| Primary RP | Digits | 31.7 (4.1) | 27.3 (7.4)† | 27.2 (7.7)** | 29 (8.7) |
| Dorsum | 31.9 (2.3) | 29.6 (8.8)* | 29.3 (5.3)** | 29.4 (4.7) | |
| Thermal gradient | −0.3 (1.6) | −2.0 (3.5) | −1.8 (3.4)* | −0.4 (3.9) | |
| FMS | Digits | 30.1 (7.8) | 33.0 (3.3)§ | 31.8 (7.3) | 31.9 (6.9) |
| Dorsum | 31.6 (5.3) | 32.8 (3.6) | 31.6 (4.0) | 31.1 (4.7) | |
| Thermal gradient | −0.4 (3.5) | 0.5 (0.7)§§ | −0.4 (3.1) | 0.0 (2.7) | |
RP Raynaud’s phenomenon, FMS fibromyalgia syndrome, TG thermal gradient
* p < 0.05 versus one colour change; ** p = 0.004 versus one colour change; † p = 0.06 versus one; § p < 0.05 versus three colour changes; §§ p = 0.006 versus three colour changes