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Comparison of clinical outcomes.
| Clinical data | VSD | Improved VSD | P value |
|---|---|---|---|
| Healing time (d) | 16.64 ± 1.64 | 19.58 ± 1.74 | .269 |
| total dressing cost (yuan) | 16963.94 ± 1238.02 | 5058.04 ± 1875.97 | .001 |
| Hospital expenses (yuan) | 109581.05 ± 18911.24 | 94581.05 ± 11541.76 | .032 |
VSD = improved vacuum-sealing drainage.
