Figure 4. Comorbidities among the patients with cancer. Boxes show the IQR and the median of the pulmonary artery size to aorta ratio (PA/A) ratio measured with thorax CT scans at first diagnosis of cancer for patients with or without the three comorbidities shown. Whiskers extend to the most extreme point with the 1.5-fold distance of the IQR from the box, values outside this range are shown as open circles. CAD, coronary artery disease; Emphysema, Existence of emphysema as assessed with a thorax CT scan at first diagnosis of each patient; Hypertension, Systemic arterial hypertension based on the current European Society of Cardiology guidelines or pre-existing antihypertensive therapy for each patient.