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Table 2 Characteristics of cases of malaria (total and by group)

From: Imported submicroscopic malaria in Madrid

Characteristics of cases of malaria (total and by group)

 

Total

Traveler

Native

Native-traveler

Resident in endemic zone

n=293; (100%)

n=67; (22.86%)

n=138; (47.09%)

n=14; (4.77%)

n=74; (25.26%)

Age. Mean (SD)

39.66 (14.40)

37.55 (10.45)

41.38 (16.52)

35.39 (9.72)

55.29 (16.68)

Males n (%)

155 (52.9)

42 (62.7)

66 (47.8)

36 (48.6)

11 (78.6)

Median time (days) to diagnosis (range)

11 (0-1544)

8 (0-730)

15 (0-1544)

12 (0-317)

8.5 (0-37)

Antimalarial chemoprophylaxis n (%)

36 (12.3)

21 (31.3)

n.a

15 (20.3)

n.a

Symptomatic n (%)

198 (67.6)

62 (92.5)

56 (40.6)

11 (78.6)

69 (93.2)

Abnormal laboratorial tests

Anaemia

96 (32.8)

11 (16.4)

53 (38.4)

28 (37.8)

4 (28.6)

Leukocytopenia

50 (17.1)

12 (17.9)

21 (15.2)

12 (18.9)

3 (21.4)

Thrombocytopenia

126 (43)

32 (47.8)

35 (25.4)

50 (67.6)

9 (64.3)

Renal failure

31 (10.6)

12 (17.9)

11 (8)

7 (9.5)

1 (7.1)

Jaundice

9 (3.1)

4 (6)

3 (2.2)

2 (2.7)

0 (0)

Comorbidity n (%)

177 (60.4%)

23 (34.3)

109 (79)

36 (48.6)

9 (64.3)

SMM n (%)

104 (35.5)

13 (19.4)

83 (60.1)

6 (8.1)

2 (14.3)

Plasmodium species

P. falciparum

255 (87)

52 (77.6)

123 (89.1)

70 (94.6)

10 (71.4)

P. vivax

13 (4.4)

7 (10.4)

3 (2.2)

1 (1.4)

2 (14.3)

P. ovale

13 (4.4)

4 (6)

7 (5.1)

1 (1.4)

1 (7.1)

P. malariae

6 (2)

3 (4.5)

2 (1.4)

0(0)

1 (7.1)

Mixed infections

6 (2)

1 (1.5)

3 (2.2)

2 (2.8)

0 (0)

Median of parasitation index -in microscopic malaria- (range)

0.1 (0.1-50)

0.1 (0.1-50)

0.1 (0.1-15)

0.6 (0.1-30)

0.1 (0.1-2.7)

  1. Abbreviations (in alphabetical order). n.a Not applicable. SD (standard deviation). SMM Submicroscopic malaria.