Table 2. Epidemiological and haematological data for the studied groups.

	Malaria-Positive N = 147		Malaria-Negative N = 294
	Malaria (M)a N = 30	Co-infected (CI)b N = 117	Enteroparasites (E)c N = 143	Endemic control (EC)d N = 151
Category n (%)
Male	23 (77)	70 (60)	56 (39)	88 (58)
Female	7 (23)	47 (40)	87 (61)	63 (42)
Age	29 (12–55)	29 (7–66)d*	25 (8–74)d*	19 (10–60)
RT	29 (12–79)d*	26 (7–66)d*	25 (8–65)d*	19 (10–60)
NPE	4 (2–10)	5 (0–17)	4 (0–17)	4 (1–16)
PLM	9 (5–14)	8 (0–15)c*d*	9 (0–17)	9 (4–18)
Haemoglobin (g/dL)	13.8 (11.7–17)b*c*	13.2 (7.7–18.2)d*	12.4 (9.4–16.7)d*	13.7 (9.4–16.7)
Anaemia (%)	10% (3/30)	30.8% (36/117)d*	43.3% (62/143)	10.6% (16/151)
Parasitaemia (par./μL)	2750 (60–16.000)b*	1000 (25–30.000)	(—)	(—)
Gametocytes	250 (0–6000)	70 (0–6000)	(—)	(—)

n (%): number of samples (percentage) in each category

Values expressed as medians (25–75%): age, residence time (years) in Oiapoque (RT), number of previous malaria episodes (NPE), period (months) since last malaria (PLM), haemoglobin levels (g/dL), parasitaemia (parasites/L) and gametocytes.

The differences between the groups with regard to their age, RT, NPE, PLM and haemoglobin were calculated using Tukey's test and based on a one-way ANOVA.

Individuals with haemoglobin levels ≤ 13 g/dL for men, ≤ 12 g/dL for women and children ≥ 11 g/dLwere considered to have anaemia, according to the Kruskal-Wallis-Dunn test.

Differences in parasitaemia and gametocytes between the malaria and co-infected groups were calculated using the Wilcoxon Mann-Whitney test.

^aDifference between indicated group and the malaria group.

^bDifference between the indicated group and the co-infected group.

^cDifferences between the indicated group and the enteroparasite group.

^dDifferences between the indicated group and the endemic control.

Statistical differences in epidemiological parameters were expressed as * p < 0.05.