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Table 3 Spearman’s rank correlation coefficients of EQ-5 domains, EQ-VAS, EQ-5D index and derived disability weights

From: Hepatic schistosomiasis, upper gastrointestinal bleeding, and health related quality of life measurements from the Albert Nile Basin

  Mobility Self-care Usual activities, Pain and discomfort Anxiety and depression EQ-VAS EQ-5D index EQ-VAS derived disability weights EQ-5D Index derived disability weights
Mobility 1         
Self-care 0.3916* 1        
Usual activities, 0.5849* 0.4725* 1       
Pain/discomfort 0.4721* 0.3898* 0.4550* 1      
Anxiety/depression 0.3364* 0.3429* 0.2253 0.3151* 1     
EQ-VAS − 0.6308* − 0.4928* − 0.6051* − 0.4300* − 0.4162* 1    
EQ-5D index − 0.7553* − 0.7494* − 0.7160* − 0.6270* − 0.5922* 0.7288* 1   
EQ-VAS disability weight 0.6308* 0.4928* 0.6051* 0.4300* 0.4162* − 1 − 0.7288* 1  
EQ-5D disability weight 0.7553* 0.7494* 0.7160* 0.6270* 0.5922* − 0.7288* − 1 0.7288* 1
# Correlation coefficient Interpretation of effect size
.90 to 1.00 Nearly, practically, or almost: perfect, distinct, infinite
.70 to .90 Very large, very high, huge
.50 to .70 Large, high, major
.30 to .50 Moderate, medium
.10 to .30 Small, low, minor
.00 to .10 Trivial, very small, insubstantial, tiny, practically zero
  1. *Significance level p < 0.05