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Table 2 Summary Scores on TSQM-9 Domains and Modified Morisky Scale and Test-Retest Reliability of the TSQM-9

From: Validation of an abbreviated Treatment Satisfaction Questionnaire for Medication (TSQM-9) among patients on antihypertensive medications

Scale Time 1 Time 2 Intraclass Correlation Coefficient, ICC (95% CI of ICC)
TSQM-9    
   Effectiveness    0.784 (0.757, 0.811)
N 396 396  
Mean (SD) 73.44 (18.51) 73.74 (17.27)  
Median 72.22 72.22  
Minimum, maximum 5.56, 100 0, 100  
   Convenience    0.737 (0.704, 0.768)
N 396 396  
Mean (SD) 78.69 (15.89) 79.32 (15.46)  
Median 83.33 83.33  
Minimum, maximum 16.67, 100 16.67, 100  
   Global Satisfaction    0.759 (0.729, 0.788)
N 396 396  
Mean (SD) 75.52 (18.61) 76.57 (18.79)  
Median 78.57 78.57  
Minimum, maximum 0, 100 0, 100  
Modified Morisky Scale    
   N 396 NA  
   Mean (SD) 5.02 (1.27)   
   Median 5.25   
   Minimum, maximum 0.25, 7   
  1. Time 1 = Day of first IVRS call after enrollment; Time 2 = Time 1 + 7 to 14 days.
  2. Intraclass correlation coefficient (ICC) computed using TSQM-9 scores at Time 1 (Day of first IVRS call after enrollment) and Time 2 (Time 1 + 7 to 14 days)
  3. Possible range on TSQM-9 domain scores is 0 to 100.
  4. Possible range on modified Morisky Scale score is 0 to 7