Table 3. Incidence and hazard ratio for osteonecrosis among the severity of osteoporosis.
Case no. | IR † | Adjusted a HR (95% CI) | ||
---|---|---|---|---|
Overall | ||||
Comparison | 110 | 5.32 | 1.00 | |
Osteoporosis | ||||
Mild | 93 | 10.70 | 1.91 (1.45–2.53)** | 1.00 |
Serious | 28 | 17.17 | 2.71 (1.77–4.14)*** | 1.33 (0.86–2.06) |
P for trend | <0.0001 | |||
Non-cancer | ||||
Comparison | 107 | 5.33 | 1.00 | |
Osteoporosis | ||||
Mild | 86 | 10.32 | 1.84 (1.39–2.45)*** | 1.00 |
Serious | 25 | 16.04 | 2.52 (1.61–3.93)*** | 1.27 (0.80–2.02) |
P for trend | ||||
Cancer | ||||
Comparison | 3 | 4.90 | 1.00 | |
Osteoporosis | ||||
Mild | 7 | 19.81 | 1.19 (1.08–16.2)* | 1.00 |
Serious | 3 | 41.72 | 8.10 (1.62–40.5)* | 1.94 (0.49–7.67) |
P for trend |
HR, hazard ratio; CI, confidence interval.
aAdjusted model, adjusted for age, gender, hypertension, diabetes and cancer.
†IR, incidence ratio, per 10000 person-years.
**P<0.01;
***P<0.001.