Correlation | |||||
 |  | Number of indigenous cases of dengue fever | Number of imported cases of dengue fever with a concealment period of longer than 3 days | Number of imported cases of dengue fever with a concealment period of longer than 2 days | Number of imported cases of dengue fever with a concealment period of longer than 4 days |
Number of indigenous cases of dengue fever | Pearson correlation | 1 | Significance (two tailed) | 0.459** | 0.387** |
Significance (two tailed) | Â | 0.001 | 0.0001 | 0.001 |