Table 2.

Distinguishing characteristics of the African patients and factors associated with imported malaria according to source, Equatorial Guinea or the rest of Africa. Barcelona, 1989–2007.

	Equatorial Guinea 279 (57,1%)	Rest of Africa 210 (42,9%)	ORc (95%CI)	ORa (95%CI)	p-value
Age
from 15 to 37 yr	153 (54.8)	153 (73.3)	1	1	-
Children < 15 yr	61 (21.9)	21 (10)	2.9 (1.7–5)	3.1 (1.7–5.8)	< 0.001
Older than 37 yr	62 (22.2)	33 (15.7)	1.9 (1.2–3.1)	2 (1.1–3.5)	0.02
Unknown	3 (1.1)	2 (1)	-	-	-
Sex
Male	93 (33.3)	147 (70)	1	1	-
Female	186 (66.7)	63 (30)	5.1 (3.5–7.6)	4.8 (3.1–7.5)	< 0.001
Inner city Resident
Yes	20 (7.2)	48 (22.9)	1	1	-
No	244 (87.5)	136 (64.8)	4.3 (2.5–7.6)	4 (2.1–7.6)	< 0.001
Unknown	15 (5.4)	26 (12.4)	1.4 (0.6–1.9)	1.1 (0.4–3)	0.79
Species
Others	29 (10.4)	24 (11.4)	1	-	-
P. falciparum	213 (76.3)	160 (76.6)	1.1 (0.6–2)
Plasmodium sp	37 (13.3)	26 (12.4)	1.2 (0.6–2.5)
VFR
No	42 (15.1)	56 (26.7)	1	1	-
Yes	221 (79.2)	138 (65.7)	2.1 (1.4–3.4)	2.2 (1.3–3.9)	0.004
Unknown	16 (5.7)	16 (7.6)	1.3 (0.6–3)	1.9 (0.7–4.8)	0.21
Hospital Admission
Yes	39 (14)	69 (32.9)	1	1	-
No	240 (86)	141 (67.1)	3 (1.9–4.7)	2.2 (1.1–4.4)	0.02
Declaring Center
HCP	24 (8.6)	58 (27.6)	1	1	-
UMTSID	214 (76.7)	112 (53.3)	4.6 (2.7–7.8)	3.2 (1.6–6.3)	0.001
Others	41 (14.7)	40 (19)	2.4 (1.3–4.7)	1.8 (0.8–3.8)	0.13
Chemo-prophylaxis*
Correct	0 (0)	1 (0.7)	-	-	-
Not treated	149 (67.4)	90 (65.2)
Abandoned	11 (5)	7 (5.1)
Unknown	61 (27.6)	40 (29)

M: median, RI: interquartile range, VFR: immigrant visiting friends and relatives, HCP: Hospital Clinic. UMTSID: Unitat de Medicina Tropical i Salut Internacional Drassanes. OR c: crude odds ratio. OR a: adjusted odds ratio.

* Calculations performed in a total of 359 VFR (indication of chemoprophylaxis).