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Comorbidity network for old (≥60 years) and young (<60 years) patients according to outcome. In the networks, each node represents a disease and the edges the significant associations between the co-occurrence of comorbidities (p-value < 0.05). Dotted edges represent associations with a probability of occurrence less than 0.1. Solid edges represent associations with a probability of occurrence greater than 0.1 (red numbers).
