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Table 1 Characteristics of 400 first-generation Surinamese immigrants living in the Netherlands and their prevalence suggestive of previous dengue virus infection, February 2008 - December 2011

From: High prevalence of previous dengue virus infection among first-generation Surinamese immigrants in the Netherlands

  

Total

DENV IgG

Univariable analysis*

Multivariable analysis

   

Positive

P%

PR (95% CI)

PR (95% CI)

  

n = 400

n = 325

81.3

  

Sex

      
 

male

148

119

80.4

1

 

female

252

206

81.7

1.0 (0.92-1.1)

 

Age (in years)

      
 

≤ 40

63

46

73.0

1

1

41-50

112

90

80.4

1.1 (0.92-1.2)

1.5 (0.79-3.0)

 

51-60

117

94

80.3

1.1 (0.92-1.3)

1.6 (0.84-3.2)

≥ 61

108

95

88.0

1.2 (1.0-1.4)

1.4 (0.74-2.9)

Duration lived in Suriname (in years)

      
 

≤ 15

79

43

54.4

1

1

16-20

112

88

78.6

1.4 (1.2-1.8)

1.4 (0.96-2.1)

21-25

90

82

91.1

1.7 (1.4-2.1)

1.6 (1.1-2.3)

≥ 26

115

108

93.9

1.7 (1.4-2.1)

1.7 (1.1-2.5)

History of yellow fever vaccination

      
 

no

258

211

81.8

1

 

yes (1 or 2)

142

114

80.3

0.98 (0.89-1.1)

 

Time between (most recent) yellow fever vaccination and blood sample collection (in years)

      
 

≤ 5

41

29

70.7

1

1

> 5-10

41

35

85.4

1.2 (0.96-1.5)

1.2 (0.94-1.4)

> 10-15

41

36

87.8

1.2 (0.99-1.5)

1.2 (0.94-1.4)

> 15

10

6

60.0

0.85 (0.49-1.5)

0.79 (0.47-1.3)

  1. Participants attended the Public Health Service’s Travel Clinic in Amsterdam for pre-travel advice.
  2. P = prevalence.
  3. PR = prevalence ratio.
  4. * Variables that were significant at p < 0.1 were selected for inclusion in the multivariable model.