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Table 2 Factor coefficients after varimax rotation

From: Evaluation of the Birmingham IBS symptom questionnaire

Question Factor1 Factor2 Factor3 Factor description
Hard bowel motions 0.90    Constipation
Straining 0.86    
Constipation 0.89    
Loose, watery stools   0.59   
Diarrhoea   0.63   
Leaked or soiled   0.76   Diarrhoea
Urgency   0.66   
Mucus or slime   0.70   
Pain    0.78  
Pain after eating    0.84 Pain
Sleep problem    0.65  
Eigenvalue 2.8 2.4 2.2