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Table 3 Multiple analysis (multinomial response) in mild and severe cases of dengue fever, both compared with controls, Campinas, SP, 2007

From: Spatial distribution of the risk of dengue fever in southeast Brazil, 2006-2007

Variable

ORaMild cases

95%CI

ORaSevere cases

95%CI

Age (years)

0.99

0.98, 1.00

0.97

0.96, 0.99

Stays home during the day

    

   Yes

0.47

0.35, 0.64

0.38

0.24, 0.58

   No

-

 

-

 

Water storage

    

   Yes

2.39

1.33, 4.31

2.75

1.37, 5.53

   No

-

 

-

 

Garbage collection (times per week)

    

   ≤2

2.78

1.61, 4.81

2.30

1.16, 4.56

   > 2

-

 

-

 

Mosquito bites during the day

    

   Yes

1.68

1.23, 2.29

2.34

1.50, 3.64

   No

-

 

-

 

Basic sanitation

    

   Centralized

-

 

-

 

   Cesspool

1.26

0.82, 1.95

1.03

0.56, 1.89

Number of breeding sites

    

   0

-

 

-

 

   1 to 10

1.76

1.24, 2.50

2.05

1.25, 3.34

   >10

1.46

1.00, 2.13

2.06

1.23, 3.45

Assessment of Larvae Density b

2.13

1.80, 2.54

2.86

2.25, 3.64

  1. a OR = odds ratio
  2. b Assessment of Larvae Density = number of positive breeding sites per 100 households.