Table 2 Adjusted odds ratios odds ratio (aOR) and 95% confidence intervals (95% CIs) for malaria infection against each covariate and adjustment for potential confounders

Age category^a

 Age, 15–59*

1

 Age, 2–14

0.8 (0.4–1.4)

 Age, 60–90

0.4 (0.1–1.7)

Sex^a

 Female*

1

 Male

1.8 (1.2–2.9)

 Missing

1.47 (0.5–4.6)

Education^b

 Illiterate/never attended school*

1

 Able to read and write

0.3 (0.1–1.1)

 Primary school

0.9 (0.3–2.5)

 Middle school

1.1 (0.4–2.9)

 High school

0.26 (0.1–1.2)

 University Student/graduate

0.4 (0.1–4.9)

 Missing

1*

Occupation^c

 Other occupation*

1

 Any logging work

2.7 (1.5–4.6)

 Any farming work

1.1 (0.6–2.0)

 Any rubber plantation work

3.0 (1.4–6.8)

 Two or more of the above

3.3 (0.8–12.8)

 Missing

1*

Worksite located in the forest (outside of home village)^d

 No*

1

 Yes

2.8 (1.4–5.3)

 Missing

2.7 (0.3–26.4)

Duration of forest travel^e

 No forest travel*

1

 Less than 3 days

2.4 (0.9–5.7)

 3–14 days

8.6 (3.5–21.4)

 Longer than 14 days

8.4 (3.2–21.6)

 Missing

1.5 (0.3–7.3)

Slept in the forest within the past month^f

 No*

1

 Yes

2.6 (1.1–6.3)

 Missing/don’t know

1.8 (0.2–12.4)

Preventive methods used in the forest^g

 Preventive methods do not include bed nets*

1

 Preventive methods include bed nets

0.6 (0.3–1.3)

 No preventive methods

1.6 (0.7–3.7)

 Missing/don’t know

2.6 (0.9–7.5)

Type of net used while sleeping in the forest^g

 Conventional net*

1

 LLIN/ITN

0.6 (0.3–1.1)

 Hammock net

1*

 Use another form of prevention

1.4 (0.7–2.7)

 Don’t know

1.4 (0.4–4.6)

 Missing

2.1 (0.7, 6.7)