Table 1 Kaplan-Meier analysis of the mean survival of oncomiracidia of Paradiplozoon ichthyoxanthon exposed to differing concentrations of aluminium
Concentration (μg Al/l) | Estimated mean survival (days) Mean time ± SEM | 95 % confidence interval | |
|---|---|---|---|
Upper bound | Lower bound | ||
Control | 3.00 ± 0.82 | 1.40 | 4.60 |
7.5 | 1.88 ± 0.40 | 1.10 | 2.66 |
15 | 1.63 ± 0.26 | 1.11 | 2.41 |
30 | 1.57 ± 0.30 | 0.99 | 2.15 |
60 | 0.56 ± 0.24 | 0.08 | 1.03 |
120 | 0.00 ± 0.00 | 0 | 0 |