Table 2.
Overall and gender, age, and race-specific atlas fracture incidence rates calculated over the entire study period (expressed per million at-risk person-years)
| Incidence rate (95% CI) | |
|---|---|
| Overall | 6.2 (4.6-7.7) |
| Gender | |
| Female | 6.5 (4.8-8.2) |
| Male | 5.8 (4.2-7.4) |
| Age (years) | |
| 0-9 | 0.4 (0.1-0.7)* |
| 10-19 | 1.2 (0.5-1.9)* |
| 20-29 | 1.9 (1.1-2.7) |
| 30-39 | 1 (0.5-1.5)* |
| 40-49 | 2.3 (1.4-3.2) |
| 50-59 | 3.7 (2.4-5) |
| 60-69 | 8.6 (6.1-1.1) |
| 70-79 | 21.9 (15.7-28.1) |
| 80-89 | 57.9 (40.2-75.6) |
| 90+ | 135.4 (94.9-175.8) |
| Race | |
| White | 5.7 (4-7.3) |
| Black/African American | 1.9 (1.1-2.7) |
| Other | 1.9 (0.6-3.3)* |
| Asian | 1 (0.1-2)* |
*An estimate which is unstable and potentially unreliable due to the small number of cases. CI - Confidence interval