Table 3 Item, calibration, measure, standard error of the measure, 95% confidence interval, and thresholds

1. When all is said and done, I am the person who is responsible for taking care of my health*

−1.80 to − 1.30

4. I know what each of my prescribed medications do*

−1.38 to −0.88

2. Taking an active role in my own health care is the most important thing that affects my health*

−1.11 to − 0.63

7. I am confident that I can follow through on medical treatments I may need to do at home

−0.81 to − 0.33

6. I am confident that I can tell a doctor concerns I have even when he or she does not ask

−0.8 to − 0.32

8. I understand my health problems and what causes them

−0.33 to 0.11

3. I am confident I can help prevent or reduce problems associated with my health

−0.29 to 0.15

5. I am confident that I can tell whether I need to go to the doctor or whether I can take care of a health problem myself

−0.03 to 0.41

11. I know how to prevent problems with my health

0.47 to 0.91

9. I know what treatments are available for my health problems

0.48 to 0.92

10. I have been able to maintain (keep up with) lifestyle changes, like eating right or exercising

0.77 to 1.21

13. I am confident that I can maintain lifestyle changes, like eating right and exercising, even during times of stress

0.83 to 1.27

12. I am confident I can figure out solutions when new problems arise with my health

1.04 to 1.48