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Comparison of risk of aspiration based on Roberts and Shirley criteria
| Risk possibility (based on gastric volume) | Group P (n=100) | Group NP (n=100) | Total | P |
|---|---|---|---|---|
| No (<0.4 ml/kg) | 62 | 56 | 118 (59%) | 0.39 |
| Yes (≥0.4 ml/kg) | 38 | 44 | 82 (41%) |
NP=No prophylaxis group, P=Prophylaxis group
