Table. Best-fit empirical relationships based on logistic regression analyses between lags of modeled WTD as simulated by the topographically based hydrology model and three categories of SLEV transmissiona,b.
| Predictand | 1986–1991 Transmission incidence | 1986–1991 Transmission no. | 1986–1991 Epidemic transmission | 1978–1997 Transmission incidence | 1978–1997 Transmission no. | 1978–1997 Epidemic transmission |
|---|---|---|---|---|---|---|
| Antecedent lag |
17 |
14 |
11 |
16 |
8 |
16 |
| Near coincident lag |
2 |
0 |
0 |
2 |
2 |
- |
| Intercept |
19.03 (3.74) |
17.50 (1.79) |
20.98 (7.07) |
2.48 (0.39) |
6.33 (0.46) |
14.29 (3.50) |
| Antecedent slope |
18.06 (3.65) |
14.36 (1.45) |
19.56 (7.03) |
1.80 (0.36) |
2.59 (0.38) |
8.13 (2.50) |
| Significance |
p < 0.0001 |
p < 0.0001 |
p < 0.01 |
p < 0.0001 |
p < 0.0001 |
p < 0.005 |
| Near coincident slope |
–6.21 (1.77) |
–5.51 (0.79) |
–8.26 (3.85) |
–0.70 (0.34) |
–0.53 (0.27) |
- |
| Significance |
p < 0.0001 |
p < 0.0001 |
p < 0.05 |
p < 0.05 |
p < 0.05 |
NS |
| Whole model fit | p < 0.0001 | p < 0.0001 | p < 0.001 | p < 0.0001 | p < 0.0001 | p < 0.001 |
aEstimates of standard error are given in parentheses. For the transmission number category, the working correlation is r = 0.3. bWTD, water table depth; SLEV, St. Louis encephalitis virus; NS, not significant.