Table 5 Multivariate analysis based on mixed model Poisson regression (n = 4 531)

Age and manager status

 Manager

1

 Non Manager

  18 - 19 years old

1,19

  20 - 24 years old

1,65

  ≥25 years old

1,92

Arrival date in 2004

 No

1

 Yes

4,99

NDVI ≥0,35 (2 month before)

 <66% duration of stay

1

 ≥66% duration of stay

2,42

Number of consecutive dry week in month, in continuous

1

 +1 consecutive dry week in month

0,275

Mean temperature

 <27°C

1

 ≥27°C

2,40

Group-specific random effect (i.e. group effect)