Table 3 Internal consistency of the OHBS for all participants and test-retest reliability for all participating subjects
OHBS | No. of items | Cronbach’s alpha | Inter class correlation (95% CI) |
|---|---|---|---|
Susceptibility of osteoporosis (Q 1–6) | 6 | 0.778 | 0.778 |
(0.709–0.838) | |||
Seriousness (Q 7–12) | 6 | 0.822 | 0.822 |
(0.766–0.870) | |||
Benefits of exercises (Q 13–18) | 6 | 0.739 | 0.739 |
(0.656–0.808) | |||
Benefits of calcium intake (Q 19–24) | 6 | 0.749 | 0.749 |
(0.669–0.816) | |||
Barriers to exercises (Q 25–30) | 6 | 0.744 | 0.744 |
(0.663–0.812) | |||
Barriers to calcium intake (Q 31–36) | 6 | 0.716 | 0.716 |
(0.692–0.828) | |||
Health motivation (Q 37–42) | 6 | 0.766 | 0.766 |
(0.627–0.792) | |||
All Items (Q 1–42) | 42 | 0.806 | 0.806 |
(0.748–0.857) |