Table 4 Multivariate logistic regression analysis of indicators associated with malaria asexual parasitaemia by transmission season in Bunkpurugu-Yunyoo District

 Male^a

 Female

1.1

1.0–1.2

0.070

1.0

0.8–1.1

0.521

 None^a

 Year 1 IRS with α-cypermethrin

1.1

0.9–1.3

0.190

–

–

–

 Year 2 IRS with α-cypermethrin

0.9

0.7–1.0

0.058

–

–

–

 Year 3 IRS with pirimiphos-methyl

0.3

0.2–0.3

<0.001

–

–

–

 Year 4 IRS with pirimiphos-methyl

0.3

0.2–0.3

<0.001

–

–

–

 None^a

 Year 1 IRS with α-cypermethrin

–

–

–

0.9

0.8–1.1

0.352

 Year 2 IRS with α-cypermethrin

–

–

–

0.7

0.6–0.8

<0.001

 < 12^a

 12–23

1.9

1.6–2.2

<0.001

3.3

2.5–4.3

<0.001

 24–35

2.4

2.0–2.8

<0.001

6.1

4.7–8.0

<0.001

 36–47

3.1

2.6–3.6

<0.001

9.3

7.2–12.2

<0.001

 48–59

3.5

2.9–4.1

<0.001

10.7

8.2–13.9

<0.001

 < 25^a

 25–34

0.9

0.8–1.0

0.144

0.8

0.7–1.0

0.059

 35–44

1.0

0.9–1.2

0.732

0.9

0.8–1.2

0.572

 45 and above

0.9

0.7–1.1

0.224

0.8

0.5–1.1

0.130

 Never attended school^a

 Ever attended school

0.4

0.4–0.5

<0.001

0.4

0.3–0.5

<0.001

 Non-farming^a

 Farming

1.7

1.5–2.0

<0.001

2.2

1.8–2.7

<0.001

Child slept under net night prior to survey

 No^a

 Yes

0.9

0.8–1.1

0.181

1.0

0.9–1.2

0.864

 No^a

 Yes

3.2

2.9–3.6

<0.001

4.4

3.8–5.1

<0.001

Antimalarial intake 2 weeks prior to survey

 No^a

 Yes

0.3

0.3–0.4

<0.001

0.3

0.2–0.5

<0.001