Table 5 Multivariate analysis based on mixed model Poisson regression (n = 4 531)
From: Environmental determinant of malaria cases among travellers
| RR | IC95% | P | |
|---|---|---|---|
| Age and manager status | |||
| Manager | 1 | ||
| Non Manager | |||
| 18 - 19 years old | 1,19 | 0,51 - 2,80 | 0,685 |
| 20 - 24 years old | 1,65 | 1,01 - 2,71 | 0,046 |
| ≥25 years old | 1,92 | 1,18 - 3,12 | 0,008 |
| Arrival date in 2004 | |||
| No | 1 | ||
| Yes | 4,99 | 2,72 - 9,14 | < 0,001 |
| NDVI ≥0,35 (2 month before) | |||
| <66% duration of stay | 1 | ||
| ≥66% duration of stay | 2,42 | 1,48 - 3,97 | < 0,001 |
| Number of consecutive dry week in month, in continuous | 1 | ||
| +1 consecutive dry week in month | 0,275 | 0,14 - 0,52 | < 0,001 |
| Mean temperature | |||
| <27°C | 1 | ||
| ≥27°C | 2,40 | 1,30 - 4,42 | 0,005 |
| Group-specific random effect (i.e. group effect) | 0,048 |