Items

Mean (SD)

Percentage agreeing or strongly agreeing

Necessity scale

1. My health, at present, depends on my medicines.

2. My life would be impossible without my medicines.

3. Without my medicines I would become very ill.

4. My health in the future will depend on my medicines.

5. My medicines protect me from becoming worse.

Sum

4.82 (0.83)

3.94 (0.642)

4.39 (0.78)

4.24 (0.56)

4.31 (0.94)

21.7 (2.3)

92.3

79.8

90.4

86.8

88.7

87.6

Concerns scale

1. Having to take medicines worries me.

2. I sometimes worry about the long-term effects of my medicines.

3. My medicines are a mystery to me.

4. My medicines disrupt my life.

5. I sometimes worry about becoming too dependent on my medicines.

Sum

2.74 (1.24)

3.71 (0.96)

1.36 (0.88)

3.18 (0.64)

4.20 (1.27)

15.2 (3.1)

42.1

46.4

23.7

40.8

57.9

42.18