Plasmodium vivax infection: a major determinant of severe anaemia in infancy

Malaria Journal

Table 4 Adjusted odds ratios for having a haemoglobin concentration less than 7 g/dL

	<1 year^a		1–5 years^a		5–15 years^a		>15 years^b		All^c
	AOR (95 % CI)	p	AOR (95 % CI)	p	AOR (95 % CI)	p	AOR (95 % CI)	p	AOR (95 % CI)	p
Parasite negative	1		1		1		1		1
Any species	12.7 (2.36, 68.8)	0.003	2.26 (1.12, 4.59)	0.02	2.47 (1.22, 5.01)	0.01	2.01 (1.20, 3.35)	0.008	2.25 (1.61, 3.15)	<0.001
P. falciparum	6.02 (0.54, 67.0)	0.1	2.64 (1.11, 6.26)	0.03	3.02 (1.23, 7.42)	0.02	1.08 (0.95, 3.44)	0.07	2.29 (1.52, 3.44)	<0.001
P. vivax	47.7 (3.19, 712)	0.005	1.37 (0.48, 3.77)	0.5	1.84 (0.62, 5.49)	0.3	2.12 (0.93, 4.82)	0.07	1.93 (1.14, 3.25)	0.01
Mixed species	–		4.46 (1.49, 13.3)	0.008	2.11 (0.46, 9.62)	0.3	2.87 (0.64, 12.9)	0.2	3.18 (1.67, 6.07)	<0.001

AOR adjusted odds ratio, 95 % CI 95 % confidence interval
^aModels also include gender, ethnicity (non-Papuan, Highland Papuan, Lowland Papuan) and weight for age/gender/ethnicity (<mean, ≥mean)
^bModels also include gender, ethnicity (non-Papuan, Highland Papuan, Lowland Papuan) and weight for age/gender/ethnicity (<mean, ≥mean) and pregnancy status
^cModel also includes age (as a continuous variable) by gender/pregnancy status, ethnicity (non-Papuan, Highland Papuan, Lowland Papuan) and weight for age/gender/ethnicity (<mean, ≥mean)

ISSN: 1475-2875