Table 2.
Treatment effect judgment
| Drainage effect | < 80 yr old (Group A; n = 184) | ≥ 80 yr old (Group B; n = 88) | P value |
| Bile duct diameter prior to drainage (mm) | 11.350 ± 3.6310 (4-23) | 12.819 ± 3.3148 (5-22) | NS |
| Stenosis length prior to drainage (mm) | 27.216 ± 12.688 (5-59) | 27.292 ± 12.702(6-52) | NS |
| ALT prior to drainage (IU/L) | 162.767 ± 104.768 (29-851) | 127.567 ± 104.760(30-838) | NS |
| ALT post drainage (IU/L) | 78.875 ± 159.482 (10-278) | 66.039 ± 143.106 (13-270) | NS |
| ALP prior to drainage (IU/L) | 1529.375 ± 1465.465 (409-2620) | 1489.447 ± 1102.192 (432-2512) | NS |
| ALP post drainage (IU/L) | 871.000 ± 803.131 (326-1855) | 665.622 ± 557.643 (331-1811) | NS |
| T-Bil prior to drainage (mg/dl) | 5.438 ± 6.512 (0.4-27.8) | 5.276 ± 5.858 (0.6-27) | NS |
| T-Bil post drainage (mg/dl) | 2.387 ± 3.879 (0.4-12.2) | 1.580 ± 3.943 (0.6-12) | NS |
| Chemotherapeutic effect | |||
| CR | 0 | 0 | NS |
| PR | 12 | 4 | NS |
| SD | 78 | 7 | 0.0000 |
| PD | 16 | 4 | NS |
| Total | 106 | 15 | 0.0000 |
| Best supportive care | 78 | 73 | 0.0000 |
NS: Not significant.