Table 1 Values and interpretation of the Spatial Incidence Ratio
From: A new combination rule for Spatial Decision Support Systems for epidemiology
| Values | Interpretation |
|---|---|
| SIR(ai) = 0 | When the geo-object under study has no epidemiological incidence |
| 0 < SIR(ai) < 0.5 | The SIR is less than half of the total incidence of the geographical region |
| 0.5 ≤ SIR(ai) < 1.0 | SIR is more than half of the total incidence, but is less than the epidemiological incidence of the geographical region |
| 1.0 ≤ SIR(ai) < 1.5 | Then SIR is higher than the total incidence of the geographical region by less than 50% |
| 1.5 ≤ SIR(ai) < 2.0 | The SIR exceeds the global incidence of the geographical region by more than 50% |
| SIR(ai) ≥ 2.0 | Then SIR is two or more times higher than the total incidence of the geographical region |