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| Factor | Hazard ratio | Standard error | z | P > |z| | 95% confidence interval |
| Treatment | 0.79 | 0.12 | ‐1.5 | 0.13 | 0.58 to 1.07 |
| Familial ALS | 0.65 | 0.33 | ‐0.84 | 0450 | 0.23 to 1.78 |
| Treatment x familial ALS | 0.90 | 0.79 | ‐0.12 | 0.90 | 0.16 to 5.04 |
