Template:Back pain red flags
| Factor | Post Test Probability |
| Older Age (>65yo) | 9%
(95% CI 3% to 25%) |
| Prolonged corticosteroid | 33%
(95% CI 10% to 67%) |
| Severe trauma | 11%
(95% CI 8% to 16%) |
| Presence of contusion or abrasion | 62%
(95% CI 49% to 74%) |
| Multiple red flags | 90%
(95% CI 34% to 99%) |
| H/O malignancy | 33%
(95% CI 22% to 46%) |
