Risk of SIDS in siblings of children who had had febrile convulsions (FC+) relative to the risk in siblings of children who had never been hospitalised with febrile convulsions (FC−) as measured by the Cox HR
| SIDS | ||||
|---|---|---|---|---|
| Cohorts | Person years at risk | No. | No. per 1000 | HR (95% CI) |
| *Reference. | ||||
| FC− | 20036.98 | 34 | 1.70 | 1.00* |
| FC+ | 9807.25 | 15 | 1.53 | 0.90 (0.49 to 1.66) |