Sex-specific analysis of primary and secondary variables.

<p>Sex-specific analysis of primary and secondary variables.</p

Observed and predicted perioperative mortality according to sex.

<p>Observed and predicted perioperative mortality according to sex.</p

Relationship of observed to expected mortality (O/E ratio) predicted by the German KCH score for the GOPCABE trial population.

<p>Relationship of observed to expected mortality (O/E ratio) predicted by the German KCH score for male and female patients of the GOPCABE trial population. Risk for women was analyzed either with or without factor sex. Note that eliminating factor sex from the risk model substantially increased O/E ratio (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0184038#sec008" target="_blank">methods</a> for details).</p

Perioperative characteristics.

<p>Perioperative characteristics.</p