Table 5 Logistic regression analysis for the risk factor of postoperative pulmonary complications.
Variables | Univariate | Multiriate | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
β | S.E | Z | P | OR (95%CI) | β | S.E | Z | P | OR (95%CI) | |
Group* | −0.96 | 0.45 | −2.15 | 0.032 | 0.38(0.16 ~ 0.92) | −0.51 | 0.64 | −2.80 | 0.026 | 0.66(0.48 ~ 0.86) |
After induction | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Driving pressure | 0.19 | 0.08 | 2.49 | 0.013 | 1.21(1.04 ~ 1.41) | 0.25 | 0.10 | 2.58 | 0.010 | 1.29(1.06 ~ 1.56) |
Peak inspiratory pressure | 0.06 | 0.09 | 0.66 | 0.511 | 1.06(0.89 ~ 1.25) | / | / | / | / | / |
Positive end-expiratory airway pressure | −0.14 | 0.16 | −0.88 | 0.377 | 0.87(0.64 ~ 1.18) | / | / | / | / | / |
Tidal volume | −0.01 | 0.01 | −0.92 | 0.355 | 0.99(0.98 ~ 1.01) | / | / | / | / | / |
Respiratory rate | 0.16 | 0.14 | 1.16 | 0.247 | 1.18(0.89 ~ 1.55) | / | / | / | / | / |
Dynamic respiratory system compliance | 0.01 | 0.03 | 0.52 | 0.604 | 1.01(0.96 ~ 1.07) | / | / | / | / | / |
SpO2 | 0.21 | 0.28 | 0.74 | 0.458 | 1.23(0.71 ~ 2.12) | / | / | / | / | / |
End-tidal carbon dioxide | 0.03 | 0.07 | 0.47 | 0.640 | 1.03(0.90 ~ 1.18) | / | / | / | / | / |
At the end of surgery | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Driving pressure | 0.16 | 0.08 | 2.04 | 0.042 | 1.17(1.01 ~ 1.36) | / | / | / | / | / |
Peak inspiratory pressure | −0.07 | 0.09 | −0.80 | 0.422 | 0.93(0.78 ~ 1.11) | / | / | / | / | / |
Positive end-expiratory airway pressure | −0.04 | 0.14 | −0.26 | 0.793 | 0.96(0.73 ~ 1.27) | / | / | / | / | / |
Tidal volume | 0.01 | 0.01 | 1.81 | 0.070 | 1.01(1.00 ~ 1.02) | 0.01 | 0.01 | 0.86 | 0.388 | 1.01 (0.99 ~ 1.02) |
Respiratory rate | −0.08 | 0.24 | −0.34 | 0.733 | 0.92(0.58 ~ 1.47) | / | / | / | / | / |
Dynamic respiratory system compliance | 0.04 | 0.03 | 1.16 | 0.246 | 1.04(0.98 ~ 1.10) | / | / | / | / | / |
SpO2 | −0.65 | 0.25 | −2.65 | 0.008 | 0.52(0.32 ~ 0.84) | −0.66 | 0.31 | −2.11 | 0.035 | 0.52(0.28 ~ 0.95) |
End-tidal carbon dioxide | −0.05 | 0.06 | −0.78 | 0.433 | 0.95(0.85 ~ 1.07) | / | / | / | / | / |
