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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