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Table 2 Scores for items on the 12-item Medication Adherence Scale (n = 328)

From: Reliability and validity of a 12-item medication adherence scale for patients with chronic disease in Japan

 

Mean

SD

Medication compliance

13.31

2.35

 1) Over the past 3 weeks, I have taken the prescribed daily dosage of my medication.

4.59

0.84

 2) Over the past 3 weeks, I have followed the instructions about when or how often to take my medication.

4.47

0.89

 3) I have stopped taking medication based on my own judgment (not including times when I forgot to take my medication)

4.26

1.14

Collaboration with healthcare providers

11.16

2.82

 4) I feel comfortable asking my healthcare provider about my medication.

3.63

1.13

 5) My healthcare provider understands when I tell him/her about my preferences in medication taking.

3.62

1.10

 6) My healthcare provider understands when I explain to him/her about my past medication including previous allergic reactions.

3.91

1.08

Willingness to access and use information about medication

10.97

2.50

 7) I understand both the effects and the side effects of my medication.

3.86

0.91

 8) I report side effects, allergic reactions, or unusual symptoms caused by the medication.

3.87

1.05

 9) I personally search for and collect information that I want about my medicine.

3.23

1.23

Acceptance to take medication and how taking medication fits patient’s lifestyle

11.43

2.14

 10) I accept the necessity of taking medication in the prescribed manner to treat my illness.

4.09

0.84

 11) Taking medication is part of my everyday life, just like eating or brushing my teeth.

4.30

0.93

 12) I sometimes get annoyed that I have to keep taking medicine every day.

3.03

1.28