Patient demographics of spinal CSF leaks
| Demographics | All Patients | Type 1 | Type 2 | Type 3 | P Valuea |
|---|---|---|---|---|---|
| No. of leaks | 65 | 25 (39%) | 4 (6%) | 36 (55%) | |
| Age at symptoms onset (yr) | <.00001 | ||||
| Mean (SD) | 52.4 (13.1) | 44.5 (10.3) | 45.5 (8.1) | 58.8 (11.9) | |
| 95% CI | 49.3–55.6 | 40.4–48.5 | 37.6–53.4 | 54.9–62.6 | |
| Range | 28–91 | 28–68 | 34–53 | 39–91 | |
| Sex (No.) | .81 | ||||
| Female | 37 | 14 | 4 | 19 | |
| Male | 28 | 11 | 0 | 17 | |
| BMI | .015 | ||||
| Mean (SD) | 26.0 (4.5) | 24.3 (3.1) | 27.5 (7.9) | 27.0 (4.7) | |
| 95% CI | 24.9–27.1 | 23.1–25.5 | 19.7–35.3 | 25.4–28.5 | |
| Range | 16–39 | 18–31 | 21–39 | 16–39 | |
| Leak location (No.) | <.0002 | ||||
| Cervical | 2 | 2 | 0 | 0 | |
| Upper thoracic (T1–T6) | 31 | 18 | 0 | 13 | |
| Lower thoracic (T7–T12) | 29 | 5 | 4 | 20 | |
| Lumbar | 3 | 0 | 0 | 3 | |
| Bern SIH score | .44 | ||||
| Mean (SD) | 5.7 (2.4) | 5.4 (2.0) | 5.8 (3.3) | 5.9 (2.6) | |
| Range | 0–9 | 0–8 | 1–8 | 0–9 |
↵a P values were compared between type 1 and 3 groups.