Parameters | Control (n = 142) | Observation (n = 128) | All (n = 270) | P |
---|---|---|---|---|
Age, year | 45.73 ± 12.02 | 45.94 ± 12.60 | 45.83 ± 12.27 | 0.897 |
Gender | Â | Â | Â | 0.999 |
 Male | 61 (42.96%) | 55 (42.97%) | 116 (42.96%) |  |
 Female | 81 (57.04%) | 73 (57.03%) | 154 (57.04%) |  |
Imaging diagnosis method | Â | Â | Â | 0.009 |
 Ultrasound, CT, MRCP | 114 (80.28%) | 116 (90.63%) | 230 (85.19%) |  |
 Ultrasound, MRCP | 8 (5.63%) | 7 (5.47%) | 15 (5.56%) |  |
 CT, MRCP | 9 (6.34%) | 5 (3.91%) | 14 (5.19%) |  |
 Ultrasound, CT | 11 (7.75%) | 0 (0.00%) | 11 (4.07%) |  |
γ-Glutamyltransferase |  |  |  | 0.895 |
 Elevation | 136 (95.77%) | 123 (96.09%) | 259 (95.93%) |  |
 Normal | 6 (4.23%) | 5 (3.91%) | 11 (4.07%) |  |
Alkaline phosphatase | Â | Â | Â | 0.917 |
 Elevation | 140 (98.59%) | 126 (98.44%) | 266 (98.52%) |  |
 Normal | 2 (1.41%) | 2 (1.56%) | 4 (1.48%) |  |
Stone distribution | Â | Â | Â | 0.842 |
 Limited distribution | 105 (73.94%) | 96 (75.00%) | 201 (74.44%) |  |
 Diffuse stone | 37 (26.06%) | 32 (25.00%) | 69 (25.56%) |  |
Surgical methods | Â | Â | Â | < 0.001 |
 Surgical Methods I | 24 (16.90%) | 93 (72.66%) | 117 (43.33%) |  |
 Surgical Methods II | 22 (15.49%) | 35 (27.34%) | 57 (21.11%) |  |
 Surgical Methods III | 67 (47.18%) | 0 (0.00%) | 67 (24.81%) |  |
 Surgical Methods IV | 29 (20.42%) | 0 (0.00%) | 29 (10.74%) |  |