Severity of vertebral collapse with different internal contents
| Comparison in Categories | Severe* (n = 67) | Mild* (n = 54) | P Value |
|---|---|---|---|
| Air only (n = 48) | 43 (90) | 5 (10) | |
| Fluid only (n = 47) | 13 (28) | 34 (72) | <.05 |
| Presence of fluid† (n = 73) | 24 (33) | 49 (67) | |
| Absence of fluid (n = 48) | 43 (90) | 5 (10) | <.05 |
| Presence of air‡ (n = 74) | 54 (73) | 20 (27) | |
| Absence of air (n = 47) | 13 (28) | 34 (72) | <.05 |
Numbers in parentheses are percentages.
* Vertebrae with >50% preserved height were categorized as mild collapse, and those with <50% preserved height were categorized as severe collapse.
† Presence of fluid represents the sum of case numbers of fluid only and fluid with air.
‡ Presence of air represents the sum of case numbers of air only and fluid with air.