Table 1. For Amphibians Exposed To Pesticides As Tadpoles (A) And After Metamorphosis (B), Hazard Ratios And P-Values Indicating The Association Between Probability Of Mortality And All Statistically Significant Risk Factors.
| Effect | Nominal concentration | Hazard ratio (SE) | p for Cox PH model | |
|---|---|---|---|---|
| A. Tadpole-exposure | ||||
| Pacific treefrog | Bd | 39.77 (0.72) | <0.001 | |
| spring peeper | Bd | 38.95 (1.02) | <0.001 | |
| western toad | Bd | 293.80 (1.02) | <0.001 | |
| LI | 1 ppb | 1.95 (0.34) | 0.046 | |
| B. Metamorph-exposure | ||||
| Pacific treefrog | Bd | 76.80 (0.72) | <0.001 | |
| HI | 5 ppb | 0.26 (0.40) | <0.001 | |
| LH | 1 ppb | 0.43 (0.35) | 0.016 | |
| spring peeper | Bd | 18.37 (0.60) | <0.001 | |
| northern leopard frog | SVL | 0.52 (0.22) | 0.003 | |
| western toad | Bd | 30.53 (0.37) | <0.001 | |
C = Control, HH = High Herbicide, HI = High Insecticide, LH = Low Herbicide, LI = Low Insecticide.