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Table 1 Descriptive statistics of the sample

From: Spatial and temporal variations in Spain in the standardised ratio of in-hospital mortality due to colorectal cancer, 2008–2014

   2008 2009 2010 2011 2012 2013 2014
Total hospitalisations: n (rate × 100,000 inhabitants) 34,111 (73.9) 36,437 (77.95) 35,953 (76.46) 37,944 (80.41) 37,542 (79.43) 38,349 (81.37) 38,591 (82.51)
Sex (Male) n (%) 20,569 (60.30) 21,984 (60.30) 21,654 (60.2) 23,039 (60.70) 22,756 (60.60) 23,471 (61.20) 23,453 (60.80)
Age (mean ± sd) 70.07 ± 11.95 70.18 ± 11.94 70.21 ± 12.02 70.32 ± 12.02 70.36 ± 12.06 70.38 ± 12.08 70.47 ± 12.13
Days hospital stay (mean ± sd) 14.84 ± 13.25 14.27 ± 13.11 13.64 ± 12.25 12.96 ± 12.08 12.56 ± 11.60 12.26 ± 11.08 11.84 ± 10.88
Days preoperative stay (mean ± sd) 4.55 ± 7.40 4.19 ± 7.36 3.73 ± 6.67 3.16 ± 5.98 2.85 ± 5.57 2.7 ± 5.31 2.35 ± 4.75
Surgery n (%)   17,691 (51.90) 18,830 (51.70) 18,925 (52.6) 19,012 (50.10) 18,686 (49.80) 17,903 (46.70) 18,989 (49,20)
NDD (mean ± sd)   5.94 ± 3.17 6.19 ± 3.24 6.41 ± 3.27 6.7 ± 3.45 6.94 ± 3.50 7.13 ± 3.56 7,24 ± 3.64
NPD (mean ± sd)   3.5 ± 2.87 3.57 ± 2.92 3.52 ± 2.93 3.61 ± 2.98 3.64 ± 3.06 3.71 ± 3.15 3,72 ± 3.17
Urgent admission (%)   15,710 (46.10) 16,796 (46.10) 16,521 (46.00) 17,154 (45.20) 16,551 (44.10) 16,684 (43.50) 16,561 (43,00)
Readmissions (%) 5596 (16.40) 5891 (16.20) 5685 (15.80) 5984 (15.80) 5775 (15.40) 5866 (15.30) 5785 (15.00)
Mortality (%) 3826 (11.20) 3966 (10.90) 3875 (10.80) 3995 (10.50) 3920 (10.40) 3917 (10.20) 3950 (10.20)
  1. NDD: Number of diagnoses prior to discharge; NPD: Number of procedures prior to discharge