Open Access
Table 2
Sobol first-order and total-order sensitivity indices for key parameters influencing the controlled reproduction number R0c.
| Parameter | First-order index (Si) | Total-order index ( ) |
Interpretation |
|---|---|---|---|
| β0 | 0.48 | 0.55 | Main contributor to the variance of R0c |
| α2 | 0.22 | 0.30 | Treatment efficacy; direct effect and moderate interactions |
| θv | 0.15 | 0.20 | Vaccination coverage; significant influence on epidemic control |
| α1 | 0.05 | 0.08 | Low direct contribution; limited interactions |
| σ1 | 0.03 | 0.07 | Moderate contribution via interactions |
| σ2 | 0.02 | 0.06 | Moderate contribution via interactions |
| Secondary parameters (mortality, etc.) | <0.01 | <0.02 | Negligible |
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