Fig. 5

Correlation between objective (columns) and subjective (rows) neurosensory measurements. Correlation coefficients for significant positive correlations (P < 0.05) are shown in green. Correlation coefficients of significant negative correlations (P < 0.05) are shown in red. Non-significant correlations (P > 0.05) are shown in grey. This figure shows a pattern where generally the size of the affected area, the presence of brush stroke allodynia, and positive symptoms correlated with the different questionnaire scores e.g. Quality of life (EQ5D:QoL) correlated significantly with percentage of affected dermatome, brush stroke allodynia, gain-of-function sensory code, MRCS, and Sunderland. Pain-VAS, GAD-7, and PHQ-9 each correlate significantly with percentage of affected dermatome, brush stroke allodynia, gain-of-function sensory code, and MRCS. PHQ-15 correlated significantly with percentage of affected dermatome, brush stroke allodynia, and gain-of-function sensory code, but not with MRCS. The DN4 scores showed a significant correlation with percentage of affected dermatome, brush stroke allodynia, two-point discrimination, gain-of-function sensory code, MRCS, and Sunderland