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Table 5 Exploratory factors loadings and explained variance after rotation for the PHQ-9 items

From: The validity and reliability of the Patient Health Questionnaire-9 for screening depression in primary health care patients in Botswana

FactorsRotation Sums of Squared Loadings
Factor LoadingsEigen Values% of VarianceCumulative %Cronbach’s Alpha
Factor 1PHQ-10.6113.45638.39438.3940.749
PHQ-20.573    
PHQ-60.722    
PHQ-70.557    
PHQ-80.542    
PHQ-90.708    
Factor 2PHQ-30.6891.00611.17349.5670.615
PHQ-40.823    
PHQ-50.623