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. 2018 Oct 19;45(4):655–663. doi: 10.1007/s00068-018-1037-1

Table 3.

Regression analysis assessing the influence of rib fixation for a flail chest after propensity score matching

Continuous variables Rib fixation for flail chest
Median (IQR) δ 95% CI SE p value
Surgery Non-operative
Duration of ICU stay in days 6 (0–13) 2 (0–8) − 2.7 − 13.9 to 8.5 5.721 0.638
Duration of IMV in days 3 (0–9) 0 (0–7) − 2.3 − 11.6 to 7.0 4.750 0.624
Duration of epidural analgesia in days 0 (0–3) 2 (0–7) − 1.2 − 3.4 to 1.0 1.116 0.290
Duration of hospital stay in days 21 (11–31) 11 (8–18) 1.9 − 14.3 to 18.0 8.240 0.820
n (%) OR 95% CI SE p value
Pneumonia 4.8 (23) 5.6 (20) 1.1 0.2 to 5.8 0.826 0.871
Tracheostomy 2.6 (12) 3.5 (13) NA NA to NA NA NA
In hospital mortality 2.2 (10) 3.3 (12) NA NA to NA NA NA

SE standard error; OR odds ratio; ICU intensive care unit; IMV invasive mechanical ventilation; CI confidence interval; IQR interquartile range; NA no answer

δ indicates the difference in mean outcome value between rib fixation and non-operative treatment