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Table 3 Association of anemia with microscopic Plasmodium spp. infection according to age groups

From: Prevalence of non-Plasmodium falciparum species in southern districts of Brazzaville in The Republic of the Congo

Age groups (years)

Normal values (g/dl)

Anemic, % (n)

RR (95% CI)

P-value

P. falciparum infection

 1–4 (N = 43)

 ≥ 11

39.5 (17)

0.637 (0.417–0.974)

0.0374

 5–9 (N = 81)

 ≥ 11.5

46.9 (38)

0.537 (0.393–0.733)

0.0001

 10–14 (N = 86)

 ≥ 12

58.1 (50)

0.433 (0329–0.571)

 < 0.0001

 ≥ 15  (N = 262)

 ≥ 13

25.2 (66)

Ref. group

P. malariae infection

 1–4 (N = 43)

 ≥ 11

2.3 (1)

0.492 (0.052–4.626)

0.5353

 5–9 (N = 81)

 ≥ 11.5

2.5 (2)

0.464 (0.079–2.727)

0.3953

 10–14 (N = 86)

 ≥ 12

3.5 (3)

0.328 (0.068–1.596)

0.1674

 ≥ 15 (N = 262)

 ≥ 13

1.1 (3)

Ref. group

  1. n Number of infected participants who were anemic, N total number of anaemic participants, RR relative risk