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Summary of preparation and delivery times for nebulizer and MDI-spacer groups.
| Nebulizer group | MDI-spacer group | Time difference | |
|---|---|---|---|
| Preparation time | 2.05 min (95th% CI: 1.45–2.15) |
0.3 min (95th% CI: 0.03–0.5) |
2 min (p < 0.01) |
| Delivery time | 9.39 min (95th% CI: 9.06–10.12) |
4.38 min (95th% CI: 4.2–4.56) |
5 min (p < 0.01) |
