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Table 2 Spearman rank correlations between different scales

From: Self-report measurement of pain & symptoms in palliative care patients: a comparison of verbal, visual and hand scoring methods in Sub-Saharan Africa

  Pain verbal scale Pain hand scale Pain faces scale Pain Jerrycan scale
Pain verbal scale r 1 0.88 0.82 0.73
p   0.001* 0.001* 0.001*
N 314 314 314 313
Pain hand scale r 0.88 1 0.85 0.76
p 0.001*   0.001* 0.001*
N 314 315 315 314
Pain faces scale r 0.82 0.85 1 0.79
p 0.001* 0.001*   0.001*
N 314 315 315 314
Pain Jerrycan scale r 0.73 0.76 0.79 1
p 0.001* 0.001* 0.001*  
  N 313 314 314 314
   Symptom verbal scale Symptom hand scale Symptom faces scale Symptom Jerrycan scale
Symptom verbal scale r 1 0.88 0.81 0.72
p   0.001* 0.001* 0.001*
N 314 314 313 312
Symptom hand scale r 0.88 1 0.85 0.77
p 0.001*   0.001* 0.001*
N 314 314 313 312
Symptom faces scale r 0.81 0.85 1 0.82
p 0.001* 0.001* 0 0.001*
N 313 313 313 311
Symptom Jerrycan scale r 0.72 0.77 0.86 1
p 0.001* 0.001* 0.001*  
N 312 312 311 312
  1. *Correlation is significant at p < 0.001.