Question: A Cox regression model is estimating relating time to psychiatric hospitalization in patients with severe mental illness. The risk factors include age, sex, prior hospitalization

A Cox regression model is estimating relating time to psychiatric hospitalization in patients with severe mental illness. The risk factors include age, sex, prior hospitalization for mental illness, and an indicator of bipolar disorder. The parameter estimates and significance levels for the Cox regression model are shown below.

PredictorParameter Estimate (b)P value

Age, years0.00450.5647

Sex (0=female, 1=male)-0.48410.0341

Prior hospitalization

(0=no, 1=yes)0.37260.0178

Bipolar disorder (0=no, 1=yes)0.75610.0042

From these results, are men or women more likely to be hospitalized if all factors remain the same? [Of note, you need to think about the predicted hazard ratio.]

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