TABLE I. Paired cases of dengue according to both spatialand temporal distancesa during the epidemic in Jequié,state of Bahia, Brazil, 2008-2009.
| Pairs | Close in space (dij<d0) | Distant in space (dij≥d0) | Total |
|---|---|---|---|
| Close in time (tij<t0) | 13,580,769 (A) | 12,734,967 (B) | 26,315,736 (A + B) |
| Distant in time (tij≥t0) | 12,498,128 (C) | 13,343,927 (D) | 25,842,055 (C + D) |
|
| |||
| Total | 26,078,897 (A + C) | 26,078,894 (B + D) | 52,157,791 (N) |
a: Knox statistics; d0: critical spatial distance; d0: critical temporal difference; dij: spatial distance observed between cases i and j; tij: time difference observed between cases i and j. p value from the chi-square test: 0.0001.