Table 7. Factors associated with asexual parasitemia in children <5 years old in eight districts, Malawi, 2009 (N = 6,581).

Variable	Asexual parasitemia prevalence	Adjusted odds ratio
	n/N (%; 95%CIa)	(95%CIa)	p-value
District
Blantyre	83/671 (12%; 7–18)	Referent	Referent
Chiradzulu	174/827 (21%; 17–24)	1.50 (0.88–2.56)	0.14
Karonga	30/578 (5%; 3–8)	0.40 (0.20–0.79)	0.008
Lilongwe	246/805 (30%; 24–36)	2.44 (1.41–4.24)	0.002
Mwanza	243/904 (27%; 22–32)	2.07 (1.18–3.63)	0.01
Nkhotakhota	282/849 (33%; 27–40)	3.38 (1.92–5.97)	<0.001
Phalombe	413/841 (50%; 43–56)	5.37 (3.08–9.39)	<0.001
Rumphi	56/1106 (5%; 3–7)	0.34 (0.18–0.64)	<0.001
Socioeconomic status by asset index
Poorest	395/1231 (35%; 30–41)	3.46 (2.30–5.21)	<0.001
Second	317/1209 (29%; 26–33)	2.84 (2.03–3.97)	<0.001
Third	414/1540 (28%; 24–32)	2.64 (1.80–3.87)	<0.001
Fourth	285/1386 (21%; 17–25)	2.10 (1.45–3.05)	<0.001
Least poor	116/1215 (10%; 7–13)	Referent	Referent
Bednet use
Used an ITN the previous night	883/3956 (23%; 20–27)	0.79 (0.64–0.98)	0.03
Used an untreated net the previous night	84/401 (15%; 10–20)	0.64 (0.43–0.96)	0.03
Did not use a net	560/2131 (29%; 25–34)	Referent	Referent
IRS use
Lives in a house that received IRS	62/286 (21%; 15–28)	0.54 (0.37–0.80)	0.002
No IRS	1465/6295 (25%; 21–28)	Referent	Referent

^a95% confidence interval.