Table 3 Multivariate adjusted risk factor analysis for malaria infections detected by PCR, using survey logistic regression

Overall

74/327

22.6

[18.3; 27.6]

_

Village

 Village 1

13/75

16.4

[9.4; 27.0]

1

1

 Village 2

12/55

18.9

[10.2; 32.0]

1.18

[0.45; 3.11]

1.46

[0.54; 3.92]

 Village 3

25/133

20.2

[13.7; 29.0]

1.29

[0.58; 2.85]

1.49

[0.66; 3.35]

 Village 4

24/64

42.5

[30.3; 56.0]

3.77*

[1.64; 8.66]

3.49*

[1.51; 8.03]

Ethnic

 Cadong

24/64

42.5

[30.3; 56.0]

1

 M’nong

50/263

18.9

[14.3; 25.0]

0.31*

[0.17; 0.59]

_

Age groups, years

 ≤9

26/82

32.3

[22.9; 43.0]

1

 10-19

18/63

30.7

[20.0; 44.0]

0.93

[0.44; 1.96]

 20 +

30/182

15.4

[10.6; 22.0]

0.38*

[0.20; 0.72]

_

Occupation

 None (children, disabled)

15/51

30.1

[18.9; 44.0]

1

 Farmers

33/192

16.5

[11.6; 23.0]

0.46*

[0.22; 0.96]

 Others (officer, business, students)

26/84

32.8

[23.2; 44.0]

1.13

[0.52; 2.48]

_

Bed net availability in household

 No net

63/254

26.7

[21.3; 33.0]

1

1

 At least one net

11/73

12.7

[6.8; 22.0]

0.40*

[0.19; 0.84]

0.44*

[0.20; 0.97]

Wall of house

 Bamboo wall

3/37

6.1

[1.7; 19.0]

1

1

 Wood wall

71/290

25.7

[20.7; 31.0]

5.30*

[1.40; 20.06]

5.71*

[1.47; 22.1]