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| Comparison | Children with an event (n) | Total number of children (N) | SAE per 10,000 children (95% CI) | Mean duration of trials (weeks) | SAE per 10,000 children per week (95% CI) |
|---|---|---|---|---|---|
| Formoterol v Placebo | 1 | 492 | 20 (4 to 114) | 27 | 1 (0 to 4) |
| Salmeterol v Placebo | 20 | 608 | 329 (214 to 503) | 31 | 11 (7 to 16) |
| Formoterol & ICS v ICS | 4 | 1069 | 37 (15 to 96) | 13 | 3 (1 to 7) |
| Salmeterol & ICS v ICS | 1 | 932 | 11 (2 to 61) | 15 | 1 (0 to 4) |
