Table 5 Analysis of variance (based on a Type-III error) to explain the perception of the present dengue epidemic risk nation-wide after a stepwise backward minimal model using a GLM procedure; n = 38 respondents, R2 = 0.547, AIC = 156.420. The two independent variables (i.e., professional experience in tropical regions and travel or tropical medicine specialty) are indicated by [1] and [2], respectively, in the interaction terms
Source | Mean Squares | df | F-ratio | p-value |
|---|---|---|---|---|
Professional experience in tropical regions [1] | 11.235 | 4 | 4.180 | < 0.01 |
Travel or tropical medicine specialty [2] | 12.766 | 1 | 4.750 | < 0.05 |
[1] × year of medical degree | 11.307 | 4 | 4.207 | < 0.01 |
[2] × year of medical degree | 12.747 | 1 | 4.743 | < 0.05 |
Error | 27 | 2.668 |