Table 3.
Risk factor analysis for in-hospital mortality of ECMO patients
| Factors | All | |||
|---|---|---|---|---|
| OR | 95% CI | P | ||
| Type (Ref = VA) | ||||
| VV | 0.95 | 0.75 | 1.19 | 0.6431 |
| Age (Ref = 0–13) | ||||
| 14–20 | 1.11 | 0.62 | 1.98 | 0.7255 |
| 21–30 | 0.84 | 0.52 | 1.35 | 0.4699 |
| 31–40 | 0.80 | 0.50 | 1.27 | 0.3469 |
| 41–50 | 0.87 | 0.56 | 1.34 | 0.5280 |
| 51–60 | 1.13 | 0.74 | 1.71 | 0.5823 |
| 61–70 | 1.12 | 0.74 | 1.70 | 0.5782 |
| > 71 | 1.61 | 1.01 | 2.55 | 0.0452 |
| Sex (Ref = male) | ||||
| Female | 0.80 | 0.65 | 0.99 | 0.0400 |
| GDP (Ref = high) | ||||
| Middle | 0.72 | 0.56 | 0.93 | 0.0110 |
| Low | 1.19 | 0.86 | 1.66 | 0.3017 |
| Season (Ref = spring) | ||||
| Summer | 1.35 | 1.01 | 1.81 | 0.0420 |
| Autumn | 0.92 | 0.69 | 1.22 | 0.5658 |
| Winter | 1.10 | 0.84 | 1.46 | 0.4858 |
| Diagnosis at discharge | ||||
| Infectious disease | 1.01 | 0.79 | 1.29 | 0.9584 |
| Blood system disease | 1.29 | 1.01 | 1.65 | 0.0413 |
| Endocrine disease | 1.18 | 0.96 | 1.46 | 0.1221 |
| CNS disease | 1.85 | 1.40 | 2.43 | < 0.0001 |
| Circulatory disease | – | – | – | – |
| Respiratory disease | – | – | – | – |
| Digestive disease | 1.10 | 0.88 | 1.38 | 0.3953 |
| Urogenital diseases | 1.04 | 0.83 | 1.31 | 0.7348 |
| Congenital malformations | 1.59 | 1.08 | 2.33 | 0.0180 |
| Injury and poisoning | 1.12 | 0.83 | 1.52 | 0.4607 |
ECMO extracorporeal membrane oxygenation, VV veno-venous, VA veno-arterial, OR odd ration, 95%CI 95% confidence interval, GDP gross domestic product, CNS disease central nervous disease