What drives the timing-mortality covariation after #HipFracture?

What is it about?

We present factors that influence both the timing of surgery and the occurrence of death and construct a dependency graph of relationships among these factors.

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Why is it important?

We found factors with a potential to induce covariation of time to surgery and the occurrence of death, directly or through the network of relationships, thereby explaining association between surgical timing and mortality. We show how age, sex, dependent living, fracture type, hospital type, surgery type, and calendar period can influence both time to surgery and occurrence of death through chains of dependencies. Could that explains the timing-mortality association in absence of causation?

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