Gestational age | Birth weight | Postmenstrual age at surgery | Postnatal age at surgery | VAP-1 (Area %) | |
---|---|---|---|---|---|
Group 1 vs 2 | 0.81 | 0.97 | *** | *** | 0.99 |
Group 1 vs 3 | *** | ** | * | ** | * |
Group 1 vs 4 | *** | *** | *** | ** | ** |
Group 2 vs 3 | *** | ** | *** | 0.94 | * |
Group 2 vs 4 | *** | *** | *** | 0.09 | *** |
Group 3 vs 4 | *** | *** | *** | 0.72 | 0.99 |