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Table 5 Scale characteristics and (inter)correlations of the 24-item PCC instrument

From: Validation of an instrument to assess the delivery of patient-centred care to people with intellectual disabilities as perceived by professionals

  24-item short version Cronbach’s alpha Scale mean (sd) Correlations range 1 2 3 4 5 6 7 8
1. Patients’ preferences 1, 2, 3 .71 4.05 (.58) .31–.55         
2. Physical comfort 6, 7, 9 .52 3.57 (.72) .40–.56 .55***        
3. Coordination of care 10, 11, 14 .69 3.64 (.66) .32–.55 .55*** .54***       
4. Emotional support 15, 16, 17 .77 3.63 (.76) .34–.56 .45*** .56*** .43***      
5. Access to care 18, 19, 20 .59 3.49 (.76) .28–.45 .40*** .41*** .45*** .34***     
6. Continuity and transition 23, 24, 25 .77 3.44 (.82) .44–.36 .44*** .40*** .44*** .42*** .44***    
7. Information and education 27, 28, 29 .74 3.07 (.94) .31–.41 .31*** .41*** .32*** .41*** .31*** .41***   
8. Family and friends 33, 34, 35 .85 3.89 (.79) .28–.54 .49*** .46*** .41*** .54*** .28*** .36*** .33***  
9. Overall PCC All of the above .93a 3.60 (.53) .65–.76 .72*** .76*** .71*** .74*** .65*** .70*** .66*** .69***
  1. ***p < 0.001 (2-tailed). Results using the 35-item version are similar. Results are based on listwise deletion of missing cases
  2. aComposite reliability index based on the factor loadings of the first-order construct