TABLE 1.
Baseline Characteristics of the 7658 aSAH Patients in the Administrative Dataset Treated by Means of Clipping (n = 3510) or Coiling (n = 4148)
| Australia | Europe | US | ||||
|---|---|---|---|---|---|---|
| Number of hospitals | 4 | 10 | 8 | |||
| Number of patients | 863 | 3979 | 2816 | |||
| Clipping | Coiling | Clipping | Coiling | Clipping | Coiling | |
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |
| 562 (65) | 301 (35) | 1551 (39) | 2428 (61) | 1397 (50) | 1419 (50) | |
| Age (yr) | ||||||
| 0-39 | 14% | 11% | 10% | 12% | 13% | 12% |
| 40-49 | 22% | 25% | 23% | 24% | 25% | 21% |
| 50-59 | 32% | 27% | 30% | 29% | 29% | 30% |
| 60-69 | 18% | 19% | 25% | 21% | 20% | 18% |
| 70+ | 14% | 18% | 11% | 14% | 13% | 19% |
| Female | 63% | 72% | 67% | 67% | 70% | 66% |
| Average number of severity or comorbidity conditions* | 2.0 | 1.7 | 0.5 | 0.6 | 2.2 | 2.3 |
| Length of stay (median days) | 17 | 15 | 18 | 15 | 17 | 15 |
| 14 d case fatality (95% CI) | 12% [10%-15%] | 9% [6%-13%] | 4% [3%-5%] | 7% [6%-8%] | 7% [5%-8%] | 10% [8%-11%] |
*SEVERITY: Cardiac arrhythmias, Fluid and electrolyte disorders; COMORBIDITY: Valvular disease, Rheumatoid arthritis collagen vascular disease, Peptic ulcer disease excluding bleeding, Peripheral vascular disorders, Chronic pulmonary disease, Solid tumour without metastasis, Diabetes complicated, Metastatic cancer, AIDS HIV, Lymphoma, Obesity, Alcohol abuse, Drug abuse; SEVERITY OR COMORBIDITY: Congestive heart failure, Diabetes uncomplicated, Paralysis, Renal failure, Hypertension uncomplicated, Hypertension complicated, Coagulopathy.