Malaria Journal

Table 2 Multivariate analysis of risk factors for anaemia, malaria anaemia and severe malarial anaemia

From: Impact of Plasmodium falciparum infection on the frequency of moderate to severe anaemia in children below 10 years of age in Gabon

	Anaemia			Malarial anaemia			Severe malarial anaemia
	aOR	[95% CI]	P	aOR	[95% CI]	P	aOR	[95% CI]	P
Age (months)
< 1	ND^a			ND			ND
1–5	1.00			2.55	[1.17–5.55]	0.014	8.55	[4.04–18.09]	<0.001
6–11	2.83	[1.22–6.56]	0.015	3.95	[2.41–6.49]	0.002	6.26	[4.12–9.49]	<0.001
12–23	3.45	[1.74–8.39]	0.001	4.27	[2.91–6.22]	<0.001	4.40	[3.26–5.88]	<0.001
24–35	3.15	[1.59–7.47]	0.001	4.04	[2.72–5.99]	<0.001	2.83	[1.86–4.33]	<0.001
36–47	2.16	[0.98–4.75]	0.056	3.63	[2.39–5.52]	<0.001	1.79	[1.10–2.89]	0.017
48–59	2.67	[1.20–5.95]	0.016	3.64	[2.22–5.80]	<0.001	0.89	[0.49–1.62]	NS
60–71	2.23	[0.98–5.07]	NS	2.64	[0.66–3.80]	NS	0.84	[0.41–1.73]	NS
72–83	2.21	[0.94–5.13]	NS	1.97	[0.65–3.30]	NS	0.83	[0.23–2.88]	NS
84–95	0.96	[0.36–2.58]	NS	1.29	[0.77–2.17]	NS	0.22	[0.03–1.87]	NS
96–107	0.80	[0.27–2.31]	NS	0.81	[0.30–2.67]	NS	0.44	[0.09–2.27]	NS
108–119	1.93	[0.81–4.57]	NS	1.13	[0.57–2.63]	NS	0.90	[0.41–1.98]	NS
Parasitaemia				ND^b
0	1.37	[1.11–2.28]	<0.001				1.00
[0–1000]	1.75	[1.27–2.43]	<0.001				1.38	[0.92–2.08]	NS
[1000–10000]	2.20	[1.71–2.84]	<0.001				2.60	[2.07–3.26]	<0.001
[10000–100000]	2.04	[1.62–2.60]	<0.001				2.54	[2.07–3.13]	<0.001
[100000–250000]	2.70	[1.86–3.88]	<0.001				2.79	[2.03–3.83]	<0.001
≥ 250000	3.54	[2.43–5.17]	<0.001				4.96	[3.73–6.59]	<0.001

^a: not significant ^b: not determined

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