Independent predictors of outcome in chest tube thoracostomy (CTTD) for pleural effusion among study participants
| Variable | Odds ratio of success | Odds ratio of failure | 95% CI | p-value |
| Duration of drainage | ||||
| <14 days | 13.2 | 1.489–117.015 | 0.020# | |
| ≥14 days | 1.0 | |||
| Duration of illness before presentation | ||||
| <30 days | 20.9 | 2.154–203.351 | 0.009# | |
| ≥30 days | 1.0 | |||
| Empyema complicating drainage | ||||
| Present | 0.01 | 0.001–0.151 | 0.001# | |
| Absent | 1.0 | |||
#: statistically significant.