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Table 2 Univariate and multivariate logistic regression models for the development group

From: Pulmonary infection after cardiopulmonary bypass surgery in children: a risk estimation model in China

Factor Subgroup Univariate analysis Multivariate analysis
OR (95%CI) P Value OR (95%CI) P Value
Sex   0.97 (0.797–1.186) 0.782 NA  
Age < 6     
6–11.99 0.58 (0.41–0.86) 0.006 0.71 (0.43–1.17) 0.175
12–23.99 0.34 (0.23–0.48) < 0.001 0.37 (0.21–0.66) 0.001
> = 24 0.11 (0.08–0.16) < 0.001 0.20 (0.10–0.39) < 0.001
Weight < 5     
5–7.99 0.32 (0.19–0.54) < 0.001 0.54 (0.27–1.06) 0.075
8–13.99 0.15 (0.09–0.25) < 0.001 0.42 (0.19–0.91) < 0.001
> = 14 0.05 (0.03–0.08) < 0.001 0.13 (0.05–0.34) < 0.001
PAH   0.89 (0.73–1.09) 0.251 NA  
RACHS-1   13.17 (10.06–17.24) < 0.001 6.94 (4.86–9.90) < 0.001
Preoperative hospital stay < 125     
125–174.99 2.02 (1.57–2.60) < 0.001 1.80 (1.30–2.50) < 0.001
175–224.99 3.19 (2.30–4.43) < 0.001 2.37 (1.52–3.70) < 0.001
> = 225 8.81 (6.34–12.23) < 0.001 6.71 (4.33–10.40) < 0.001
Anaesthesia time < 190    NA  
190–239.99 2.73 (1.90–3.91) < 0.001 NA  
> = 240 14.154 (9.81–20.43) < 0.001 NA  
Cardiopulmonary bypass time < 65     
65–94.99 2.89 (2.14–3.92) < 0.001 1.68 (1.15–2.47) < 0.001
95–134.99 16.95 (12.03–23.88) < 0.001 3.92 (2.34–6.56) < 0.001
> = 135 52.81 (29.88–93.34) < 0.001 7.76 (3.56–16.95) < 0.001
Aortic occlusion time < 25    NA  
25–54.99 2.34 (1.63–3.35) < 0.001 NA  
> = 55 18.12 (12.27–26.77) < 0.001 NA  
Operation time < 110    NA  
110–179.99 5.81 (1.81–18.66) < 0.001 NA  
> = 180 31.62 (9.81–101.89) < 0.001 NA  
Intraoperative blood transfusion   5.18 (4.11–6.53) < 0.001 1.67 (1.20–2.32) 0.002
Preoperative total protein content   0.74 (0.56–0.97) 0.03 NA  
Preoperative albumin   0.80 (0.42–1.54) 0.51 NA  
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