Table 2 Malaria prevalence in the general population before and after LLIN distribution

Any species

Finschhafen

455

9.9 (7.3–13.0)

442

2.5 (1.2–4.4)

0.16 (0.07–0.34)

< 0.001

Mumeng

290

10.0 (6.8–14.0)

462

7.8 (5.5–10.6)

0.62 (0.36–1.07)

0.086

Sausi

337

9.2 (6.3–12.8)

422

4.7 (2.9–7.2)

0.48 (0.26–0.88)

0.017

Tabibuga

325

9.8 (6.8–13.6)

341

3.2 (1.6–5.7)

0.25 (0.12–0.52)

< 0.001

Yapsie

560

30.5 (26.7–34.5)

319

5.6 (3.4–8.8)

0.10 (0.06–0.18)

< 0.001

Overall

1,967

15.7 (14.1–17.3)

1,986

4.8 (3.9–5.9)

0.26 (0.20–0.33)

< 0.001

P. falciparum

Finschhafen

455

6.2 (4.1–8.8)

442

0.7 (0.1–2.0)

0.10 (0.03–0.33)

< 0.001

Mumeng

290

8.6 (5.7–12.5)

462

5.4 (3.5–7.9)

0.49 (0.27–0.91)

0.023

Sausi

337

5.9 (3.7–9.0)

422

2.6 (1.3–4.6)

0.46 (0.21–0.98)

0.044

Tabibuga

325

6.2 (3.8–9.3)

341

0.6 (0.1–2.1)

0.08 (0.02–0.34)

0.001

Yapsie

560

18.9 (15.8–22.4)

319

2.5 (1.1–4.9)

0.12 (0.05–0.24)

< 0.001

Overall

1,967

10.1 (8.8–11.5)

1,986

2.5 (1.8–3.2)

0.23 (0.16–0.32)

< 0.001

P. vivax

Finschhafen

455

4.2 (2.5–6.4)

442

1.6 (0.6–3.2)

0.25 (0.09–0.68)

0.007

Mumeng

290

3.8 (1.9–6.7)

462

2.2 (1.0–3.9)

0.44 (0.18–1.07)

0.071

Sausi

337

3.6 (1.9–6.1)

422

2.6 (1.3–4.6)

0.67 (0.28–1.58)

0.357

Tabibuga

325

2.8 (1.3–5.2)

341

2.6 (1.2–5.0)

0.84 (0.32–2.20)

0.728

Yapsie

560

11.8 (9.2–14.7)

319

3.1 (1.5–5.7)

0.18 (0.08–0.39)

< 0.001

Overall

1,967

5.9 (4.9–7.1)

1,986

2.4 (1.7–3.1)

0.38 (0.26–0.55)

< 0.001

P. malariae

Finschhafen

455

0.4 (0.1–1.6)

442

0.2 (0–1.3)

0.51 (0.05–5.68)

0.587

Mumeng

290

0 (0–1.3)

462

0.2 (0–1.2)

na

Sausi

337

0.3 (0–1.6)

422

0 (0–0.9)

na

Tabibuga

325

1.5 (0.5–3.6)

341

0 (0–1.1)

na

Yapsie

560

2.7 (1.5–4.4)

319

0 (0–1.1)

na

Overall

1,967

1.2 (0.7–1.7)

1,986

0.1 (0–0.4)

0.09 (0.02–0.36) ^a

0.001