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Table 2 Biological data and comorbidity in the study and control groups

From: Prognosis of rectal cancer patients improves with downstaging by intensified neoadjuvant radiochemotherapy - a matched pair analysis

  All patients % (n = 212) Study group with neoadjuvant treatment % (n = 106) Control group without neoadjuvant treatment % (n = 106) p-value
Gender ratio (f : m) 1 : 1.94 1 : 2.92 1 : 1.35 <0.01
Age (mean) 65.4 62.3 68.5 0.06
Comorbidity 77.0 68.6 85.5 <0.01
 Pulmonary 9.1 5.7 12.5 0.01
 Cardiovascular 23.9 21.9 26.0 0.52
 Renal 7.2 6.7 7.7 0.80
 Diabetes 19.1 11.4 26.9 <0.01
 Hypertension 47.8 40.0 55.8 0.03
 Others 48.9 39.0 58.7 <0.01
ASA score (mean) 2.4 2.3 2.5 0.05