The impact of injury severity and age on short-and long-term mortality and hospital length of stay after surgical stabilisation of rib fractures (SSRF): a German population-based propensity-score matched investigation.

Conversely, the beneficial effect of SSRF was higher in the subgroup without pulmonary injury (HR 0.193, 95% CI 0.067–0.557, p = 0.002) than in the subgroup with pulmonary injury (HR 0.293, 95% CI 0.053–1.607, p = 0.157), the latter of which again showed a trend but did not reach statistical significance.

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The interaction terms between the type of treatment and age c as well as ISS c did not reach statistical significance.

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