TABLE 4b.
Predictors of ventilator dependence for patients with cervical spinal cord injuries
| OR | CI | p | OR adjust | CI | p | |
|---|---|---|---|---|---|---|
| Age | 1.00 | 0.99–1.01 | 0.938 | 1.00 | 0.99–1.01 | 0.935 |
| Gender | 1.05 | 0.44–2.57 | 0.901 | 0.95 | 0.49–1.86 | 0.885 |
| Blunt mechanism | 1.19 | 0.38–3.74 | 0.756 | 0.55 | 0.09–3.34 | 0.516 |
| Body mass index | 1.00 | 0.96–1.05 | 0.883 | 1.01 | 0.97–1.05 | 0.725 |
| Injury severity score | 1.04 | 1.02–1.05 | 0.000 | 1.05 | 1.03–1.08 | <0.001 |
| AIS head | 1.29 | 0.65–2.52 | 0.465 | 1.10 | 0.62–1.93 | 0.746 |
| AIS chest | 1.06 | 0.86–1.31 | 0.568 | 0.85 | 0.67–1.06 | 0.154 |
| Glasgow coma scale on arrival | 0.99 | 0.91–1.07 | 0.756 | 0.99 | 0.92–1.05 | 0.686 |
| TBI | 1.96 | 0.83–4.60 | 0.124 | 1.57 | 0.64–3.82 | 0.323 |
| Other injury | 0.98 | 0.42–2.28 | 0.957 | 0.66 | 0.15–2.83 | 0.578 |
| Operative stabilization | 1.34 | 0.67–2.69 | 0.412 | 1.60 | 0.78–3.28 | 0.196 |
| Respiratory comorbidities | 1.14 | 0.56–2.33 | 0.714 | 1.10 | 0.29–4.19 | 0.886 |
| Tracheostomy | 18.10 | 5.53–59.22 | 0.000 | 14.11 | 2.78–71.67 | 0.001 |
| PH at intubation | 0.44 | 0.01–15.10 | 0.651 | 0.92 | 0.01–67.72 | 0.970 |
| Paco2 at intubation | 0.99 | 0.96–1.02 | 0.495 | 0.99 | 0.94–1.04 | 0.715 |
| Pao2 at intubation | 1.00 | 1.00-1.00 | 0.917 | 1.00 | 1.00-1.00 | 0.633 |
| Hco3 at intubation | 0.95 | 0.85–1.07 | 0.414 | 0.99 | 0.85–1.15 | 0.892 |
| Base deficit at intubation | 0.97 | 0.89–1.05 | 0.458 | 0.99 | 0.89–1.11 | 0.911 |
| Glasgow coma scale at intubation | 1.03 | 0.96–1.10 | 0.477 | 1.07 | 0.98–1.15 | 0.113 |
| Fio2 at intubation | 2.64 | 0.93–7.5 | 0.068 | 1.15 | 0.23–5.78 | 0.867 |
| Respiratory rate at intubation | 1.04 | 0.98–1.11 | 0.186 | 1.05 | 0.96–1.15 | 0.322 |
| Ventilator rate at intubation | 1.02 | 0.91–1.14 | 0.706 | 1.03 | 0.84–1.25 | 0.809 |
| Tidal volume at intubation | 1.00 | 1.00-1.00 | 0.082 | 1.00 | 1.00-1.00 | 0.440 |
| Minute volume at intubation | 0.99 | 0.88–1.12 | 0.921 | 0.82 | 0.69–0.97 | 0.022 |
| Peak pressure at intubation | 1.02 | 0.95–1.10 | 0.514 | 1.03 | 0.97–1.09 | 0.291 |
| Plateau pressure at intubation | 1.07 | 0.95–1.20 | 0.298 | 1.09 | 0.96–1.24 | 0.188 |
| PEEP at intubation | 0.87 | 0.70–1.07 | 0.188 | 0.83 | 0.57–1.21 | 0.336 |
| Spo2 at intubation | 1.06 | 0.96–1.18 | 0.225 | 1.06 | 0.97–1.16 | 0.198 |
| Mean airway pressure at intubation | 0.99 | 0.95–1.03 | 0.535 | 0.89 | 0.69–1.14 | 0.366 |
| Compliance at intubation | 1.34 | 0.64–2.82 | 0.436 | 1.58 | 1.12–2.46 | 0.045 |
| P/F ratio at intubation | 1.00 | 1.00-1.00 | 0.462 | 1.00 | 1.00-1.00 | 0.966 |
*
OR adjust= odds ratio adjusted for age, arrival GCS, injury severity score, AIS-chest score, respiratory comorbidities
*
OR and OR adjust for compiance for a change of 0.1Liter/cmH20