Table 3.
Lethal median time (LT50) and hazard ratios (HR) of An. gambiae adults that emerged from unexposed larvae or larvae exposed to two P. flavescens nymphs and/or 6 mg B. bassiana fungus spores
| Group | Larval exposure to | Adult exposure to fungus | LT50 (95% CI) (days) | Hazard ratio | |||||
|---|---|---|---|---|---|---|---|---|---|
| Nymph | Fungus | HR | 95% CI | P-value | n | df | |||
| I | No | No | No | 23 (20–26) | – | – | – | 90 | 4 |
| II | No | No | Yes | 5 (4.7–5.3) | 45.8 | 17.8–117.7 | < 0.001 | 90 | 1 |
| III | Yes | No | Yes | 4 (3.8–4.1) | 67.4 | 26.0–174.2 | < 0.001 | 90 | 1 |
| IV | No | Yes | Yes | 5 (4.7–5.3) | 50.9 | 19.8–130.8 | < 0.001 | 90 | 1 |
| V | Yes | Yes | Yes | 4 (3.7–4.3) | 112.0 | 43.3–289.5 | < 0.001 | 90 | 1 |
Notes: Significant P-values (Cox Regression) are shown in bold
Abbreviations: n, sample size; df, degrees of freedom