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Table 1 Characteristics of travellers with malaria reported to GeoSentinel, January 2003–June 2016

From: Malaria after international travel: a GeoSentinel analysis, 2003–2016

Characteristic

All travellers (n = 5689)

No species diagnosis (n = 443)

P. falciparum (n = 4011)

P. vivax (n = 857)

P. ovale (n = 251)

P. malariae (n = 124)

P. knowlesi (n = 3)

Median age, years (range)

37 (0–88)

 

38 (0–87)

30 (1–88)

36 (2–73)

39 (4–76)

40 (35–52)

Male, n (%)a

3918 (69)

304 (69)

2712 (68)

632 (74)

179 (71)

89 (72)

2 (67)

Travellers without pre-travel visit, n (%)b

2891 (53)

229 (54)

2173 (57)

373 (47)

69 (29)

46 (39)

1 (50)

Reason for travel, n (%)c

 VFRs

3017 (53)

178 (40)

2422 (60)

277 (32)

90 (36)

50 (40)

0 (0)

 Business

967 (17)

124 (26)

623 (16)

127 (15)

60 (24)

32 (26)

1 (33)

 Tourism

918 (16)

87 (20)

530 (13)

247 (29)

34 (14)

19 (15)

1 (33)

 Missionaryd

514 (9)

49 (11)

330 (8)

74 (9)

40 (16)

20 (16)

1 (33)

 Military

184 (3)

8 (2)

44 (1)

108 (13)

23 (9)

1 (1)

0 (0)

 Student

77 (1)

6 (1)

50 (1)

18 (2)

1 (<1)

2 (2)

0 (0)

 Migrant worker

11 (<1)

0 (0)

7 (<1)

2 (<1)

2 (1)

0 (0)

0 (0)

 Planned medical care

4 (<1)

1 (<1)

2 (<1)

1 (<1)

0 (0)

0 (0)

0 (0)

 Research

3 (<1)

0 (0)

0 (0)

2 (0.2)

1 (<1)

0 (0)

0 (0)

Region of exposure, n (%)

 Sub-Saharan Africa

4705 (83)

404 (91)

3771 (94)

167 (20)

244 (97)

119 (96)

N/A

 South Central Asia

309 (5)

6 (1)

28 (1)

272 (32)

2 (1)

1 (1)

N/A

 Southeast Asia

266 (5)

17 (4)

112 (3)

133 (15)

N/A

1 (1)

3 (100)

 South America

195 (3)

6 (1)

16 (<1)

171 (20)

1 (<1)

1 (1)

0 (0)

 Oceania

96 (2)

3 (1)

13 (<1)

77 (9)

2 (1)

1 (1)

0 (0)

 Caribbean

45 (1)

2 (<1)

42 (1)

1 (<1)

0 (0)

0 (0)

0 (0)

 North Africa

39 (1)

2 (<1)

26 (1)

8 (1)

2 (1)

1 (1)

0 (0)

 Central America

30 (<1)

3 (1)

2 (<1)

25 (3)

0 (0)

0 (0)

0 (0)

 Northeast Asia

3 (<1)

0 (0)

0 (0)

3 (<1)

0 (0)

0 (0)

0 (0)

 Middle East

1 (<1)

0 (0)

1 (<1)

0 (0)

0 (0)

0 (0)

0 (0)

Median trip duration, days (IQR)

32 (20–75)

31 (17–76)

31 (20–63)

36 (18–101)

56 (22–156)

34 (26–95)

21 (21–52)

Median days between return and presenting to a site (IQR)

11 (6–21)

10 (5–17)

10 (5–16)

30 (13–76)

52 (16–98)

35 (15–64)

21 (2–23)

Hospitalized, n (%)e

3523 (62)

345 (78)

2537 (63)

477 (56)

105 (41)

59 (48)

0 (0)

  1. aInformation was not available for 47 travellers (2 with P. falciparum)
  2. bInformation was not available for 268 travellers (168 with P. falciparum, 59 with for P. vivax, 14 with P. ovale, 5 with P. malariae, and 1 with P. knowlesi)
  3. cInformation was not available for 4 travellers (3 with P. falciparum and 1 with P. vivax)
  4. dIncludes missionaries, volunteers and aid workers
  5. eInformation was not available for 1 traveller with P. falciparum
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