|  | odds ratio | 95% CI | p | |
---|---|---|---|---|---|
 |  |  | lower | upper |  |
Sex | Male | 1.20 | 1.13 | 1.28 | 0.00 |
Age | under60, 60–69, 70–79, 80–89, 90- | 1.47 | 1.43 | 1.51 | 0.00 |
Major Diagnostic Category | Nervous System | * | Â | Â | 0.00 |
 | Respiratory System | 3.97 | 3.47 | 4.55 | 0.00 |
 | Circulatory System | 0.69 | 0.58 | 0.83 | 0.00 |
 | Digestive System, CHepatobiliary System And Pancreas | 3.27 | 2.85 | 3.74 | 0.00 |
 | Blood and Blood Forming Organs and Immunological Disorders | 6.77 | 5.73 | 7.98 | 0.00 |
 | Others | 1.27 | 1.10 | 1.46 | 0.05 |
Status emergency | Â | 3.72 | 3.47 | 3.99 | 0.00 |
Use of an ambulance | Â | 1.82 | 1.68 | 1.98 | 0.00 |
Total score of Charlson Index | score0 | * | Â | Â | 0.00 |
 | score1,2 | 1.44 | 1.33 | 1.57 | 0.00 |
 | score3–6 | 4.07 | 3.72 | 4.45 | 0.00 |
 | score7–12 | 8.25 | 7.32 | 9.29 | 0.00 |
 | score13- | 15.05 | 12.86 | 17.61 | 0.00 |
Length of Stay | under10 | * | Â | Â | 0.00 |
 | 10–19 | 1.39 | 1.26 | 1.52 | 0.00 |
 | 20–29 | 1.90 | 1.71 | 2.11 | 0.00 |
 | 30- | 4.35 | 4.01 | 4.72 | 0.00 |