| | All years | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | value |
| | 18,870,662 | 674,845 | 752,472 | 891,353 | 1,125,378 | 1,299,289 | 1,522,004 | 1,818,011 | 2,236,412 | 2,581,314 | 2,817,647 | 3,151,937 | | Female (%) | 47.6 | 47.42 | 47.37 | 48.02 | 47.99 | 47.69 | 47.35 | 47.45 | 47.85 | 47.56 | 47.44 | 47.65 | 0.46 | Age (median) | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 71 | 71 | 71 | 0.72 | Age (IQR) | 58–81 | 59–81 | 59–81 | 59–81 | 59–81 | 58–81 | 58–81 | 58–81 | 59–82 | 58–81 | 58–81 | 58–82 | 0.72 | Length of stay (median) | 6 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | <0.001 | Length of stay (IQR) | 3–11 | 4–13 | 4–13 | 4–13 | 3–12 | 3–12 | 3–11 | 3–11 | 3–10 | 3–10 | 3–10 | 3–9 | <0.001 | Heart failure (%) | 22.78 | 23.68 | 23.99 | 24.42 | 25.22 | 25.37 | 24.75 | 23.65 | 21.43 | 21.18 | 21.06 | 22.04 | <0.001 | Pulmonary disease (%) | 3.53 | 1.33 | 1.51 | 1.54 | 1.56 | 1.61 | 2.1 | 3.25 | 3.94 | 4.19 | 4.59 | 5.03 | <0.001 | Peripheral vascular disease (%) | 8.94 | 6.34 | 7.2 | 6.88 | 6.85 | 6.73 | 7.42 | 8.37 | 9.43 | 9.59 | 9.36 | 10.89 | <0.001 | Hypertension (%) | 52.86 | 22.91 | 26.78 | 44.15 | 45.44 | 46.4 | 49.19 | 48.69 | 53.42 | 56.73 | 58.14 | 61.21 | <0.001 | Neurological disease (%) | 9.61 | 3.62 | 9.2 | 7.55 | 7.81 | 7.79 | 8.3 | 9.3 | 9.79 | 10.05 | 10.3 | 11.12 | <0.001 | Chronic pulmonary disease (%) | 23.4 | 20.9 | 22.23 | 22.62 | 22.91 | 23.8 | 24.31 | 24.36 | 22.36 | 22.9 | 22.84 | 24.11 | 0.29 | Diabetes (%) | 23.72 | 17.12 | 18.6 | 19.18 | 19.56 | 19.36 | 21.17 | 22.71 | 24.15 | 25.65 | 25.97 | 27.26 | <0.001 | Diabetes with sequelae (%) | 10.94 | 9.55 | 10.86 | 10.61 | 10.17 | 10.32 | 10.83 | 11.23 | 10.75 | 10.53 | 10.41 | 11.57 | 0.28 | Obesity (%) | 9.26 | 2.94 | 3.9 | 4.17 | 4.37 | 4.89 | 5.96 | 7.35 | 9.8 | 11.09 | 11.26 | 14.08 | <0.001 | Anemia (%) | 30.47 | 20.19 | 22.85 | 23.86 | 23.6 | 23.58 | 26.27 | 28.9 | 32.11 | 32.84 | 32.48 | 35.87 | <0.001 | Sepsis (%) | 20.8 | 19.31 | 19.87 | 19.65 | 19.88 | 20.35 | 20.58 | 20.55 | 20.87 | 20.52 | 20.58 | 21.12 | <0.001 | In-hospital mortality (%) | 12.32 | 21.92 | 20.38 | 18.76 | 16.76 | 15.38 | 14.09 | 12.36 | 11.8 | 10.49 | 9.74 | 9.07 | <0.001 |
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