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Table 4 Kendall tau-b inter-item correlation coefficient

From: The reliability, validity and factorial structure of the Swahili version of the 7-item generalized anxiety disorder scale (GAD-7) among adults living with HIV from Kilifi, Kenya

  GAD1 GAD2 GAD3 GAD4 GAD5 GAD6 GAD7
GAD1 1.00       
GAD2 0.69 1.00      
GAD3 0.54 0.60 1.00     
GAD4 0.36 0.34 0.34 1.00    
GAD5 0.29 0.35 0.34 0.50 1.00   
GAD6 0.32 0.30 0.37 0.26 0.27 1.00  
GAD7 0.44 0.40 0.40 0.33 0.26 0.36 1.00
  1. All correlations were statistically significant at p < 0.001