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Indications of biliary drainage
| Indication | Group I n = 123 (%) | Group II n = 52 (%) | P |
| Fever ≥ 38.0°C | 118 (96) | 18 (34.6) | < 0.01 |
| Hypotension | 5 (4) | 13 (25) | < 0.01 |
| Peritonism | 22 (18) | 14 (26.9) | < 0.01 |
| Altered sensorium | 3 (2.6) | 19 (36.5) | < 0.01 |
| Failure to improve with conservative management | 2 (1.6) | 20 (38.4) | < 0.01 |
