Table 1.
Demographics of the MRONJ study population
| Characteristic | Patients with MRONJ |
Patients in Control |
P value |
|---|---|---|---|
| (n = 9) | (n = 9) | ||
| Mean age (SD), years | 62.8 (8.6) | 53.9(17.9) | 0.0817* |
| Gender (%) | >0.999‡ | ||
| Male | 1(11.1) | 3(33.3) | |
| Female | 8(88.9) | 6(66.7) | |
| Underlying disease, no.(%) | NA | ||
| Osteoporosis | 1(11.1) | ||
| Cancer | 8(88.9) | ||
| Cystic lesion of jawbone | 6(66.7) | ||
| Ameloblastoma | 3(33.3) | ||
| Trigger of MRONJ lesion | NA | ||
| Extraction | 7(77.8) | NA | |
| Spontaneous | 2(22.2) | NA | |
| MRONJ staging, no(%) | NA | ||
| Stage2 | 7(77.8) | NA | |
| Stage3 | 2(22.2) | NA | |
| Location of MRONJ, no.(%) | 0.349‡ | ||
| Mandible | 7(77.8) | 4(44.4) | |
| maxilla | 2(22.2) | 5(55.6) |
*, independent-sample T test; ‡χ2 test; NA, not applicable.