Table 2.
Risk-factor assignment table
| Factor | Assignment |
|---|---|
| Age | ≥ 55 = 1, < 55 = 0 |
| Bacterial infection of donor lung | Yes = 1, no = 0 |
| Operation time | ≥ 6 h = 1, < 6 h = 0 |
| Infection | Infected = 1, uninfected = 0 |
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