| | Patients |
| | Sex | | | Male/female (ratio) | 2945/1963 (1.5 : 1) | | Age | | | <18 (, %, ) | 1006 (20.50, ) | | 18-50 (, %, ) | 1558 (31.74, ) | | ≥50 (, %, ) | 2344 (47.76, ) | | Occupational physical activity | 1178/820/2910 | | Mild/moderate/severe (, %) | (24.00/16.71/59.29) | | Diagnostic modalities | | | X-ray (, %) | 4908 (100.00) | | CT scan (, %) | 2049 (42.00) | | Endoscopy (, %) | 817 (16.65) | | Etiology | | | Mechanical IO (, %) | 4138 (84.20) | | Nonmechanical IO (, %) | 315 (6.50) | | Indeterminate IO (, %) | 455 (9.30) | | Location of obstruction | | | Small intestine (, %) | 3072 (62.59) | | Large intestine (, %) | 1330 (27.10) | | Indeterminate (, %) | 506 (10.31) | | Degree of obstruction | | | Incomplete (, %) | 2831 (57.68) | | Complete (, %) | 2077 (42.32) | | Treatment | | | Conservative therapy (, %) | 3581 (73.00) | | Surgical operation (, %) | 1327 (27.00) | | Mortality | 4.7% | | Length of hospital stay (day, ) | |
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