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Table 2 Odds ratios for association between exposure variables and recent Plasmodium falciparum exposure by serology, adjusted for age and sex only

From: Micro-epidemiology of malaria in an elimination setting in Central Vietnam

Variable

n recently exposed (%)

OR

(95% CI)

p

Age

44.44

(15.14)

1.05

(1.02–1.08)

< 0.001

Sex

    

0.06

 Male

11

(16.67)

1

  

 Female

21

(28.38)

2.36

(0.98–5.70)

 

Drinks in hamlet in evening

    

0.93

 No

12

(23.08)

1

  

 Yes

20

(22.73)

1.05

(0.41–2.69)

 

Frequency of evening drinking in hamlet

    

0.015

 Daily

8

(42.11)

4.05

(1.31–12.53)

 

 Less than daily

24

(20)

1

  

Evening TV watching

    

0.18

 Does not watch TV

24

(28.24)

1

  

 Watches TV at home

4

(16.67)

0.39

(0.1–1.43)

 

 Watches TV in another house

4

(12.9)

0.43

(0.13–1.43)

 

Uses bed net in hamlet house

    

0.79

 Never

2

(50)

1

  

 Sometimes

6

(21.43)

0.64

(0.05–7.49)

 

 Always

23

(22.12)

0.51

(0.05–5.1)

 

Condition of bed net in hamlet house

    

0.75

 No bed net

1

(25)

1

  

 Bed net with holes

15

(27.78)

1.29

(0.11–14.6)

 

 Bed net without holes

16

(19.51)

0.92

(0.08–10.23)

 

Number of children in household

2.38

(1.9)

0.81

(0.64–1.03)

0.09

Household bed net ratio

    

0.06

 1–2 people per net

14

(33.33)

1

  

 > 2 people per net

17

(18.28)

0.42

(0.17–1.03)

 

Other P. falciparum seropositive household member

    

0.01

 No

22

(8.43)

1

  

 Yes

20

(15.38)

3.18

(1.30–7.78)

 

Hamlet house structure

    

0.11

 On ground

7

(33.33)

1

  

 On stilts

25

(21.37)

0.42

(0.14–1.22)

 

Stays overnight at farm

    

0.22

 No

15

(19.74)

1

  

 Yes

17

(26.56)

1.71

(0.72–4.05)

 

Duration of stay at farm

    

0.06

 Does not stay

15

(19.74)

1

  

 Stays up to 1 week

11

(22)

1.24

(0.48–3.19)

 

 Stays more than 1 week

6

(42.86)

5.07

(1.33–19.23)

 

Drinks in evening at farm

 Does not stay at farms

15

(19.74)

1

 

0.44

 Yes

7

(29.17)

1.95

(0.63–6.00)

 

 No

10

(25)

1.58

(0.60–4.21)

 

Uses net at farm

    

0.41

 Does not stay at farms

15

(19.74)

1

  

 Yes

15

(25.42)

1.64

(0.68–3.95)

 

 No

2

(40)

2.7

(0.38–19.01)

 

Farm bed net condition

    

0.54

 Does not stay at farms

15

(19.74)

1

  

 No bed net

2

(40)

2.7

(0.38–18.98)

 

 Bed net with holes

8

(22.22)

1.4

(0.5–3.96)

 

 Bed net without holes

7

(30.43)

2.02

(0.65–6.24)

 

Goes to forest in the evening

    

0.015

 No

15

(20)

1

  

 Yes

17

(26.15)

3.5

(1.27–9.61)

 

Goes logging in the evening

    

0.002

 No

28

(20.9)

1

  

 Yes

4

(66.67)

20.98

(3.1–141.94)

 

Collects firewood in the evening

    

0.88

 No

29

(22.83)

1

  

 Yes

3

(23.08)

1.11

(0.28–4.46)

 

Goes hunting in the evening

    

0.82

 No

25

(25.77)

1

  

 Yes

7

(16.28)

1.18

(0.28–5.06)

 

Collects forest food in the evening

    

0.06

 No

22

(20.18)

1

  

 Yes

10

(32.26)

2.55

(0.97–6.7)

 

Goes fishing in the evening

    

0.07

 No

27

(22.31)

1

  

 Yes

5

(26.32)

3.23

(0.9–11.59)

 

MAPARES cohort participation

    

0.77

 Partial

16

(18.82)

1

  

 Full

16

(29.09)

1.14

(0.47–2.76)

 
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Malaria Journal

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