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Table 1 Characteristics of cases of imported malaria in the UK in 2007 and crude incidence for each group

From: Risk factors for UK Plasmodium falciparum cases

  Cases (%) Travellers 1,000 s (%)[30] Duration of visit (days) Median (IQR*) Crude incidence per 10,000
Purpose     
VFR 450 (82%) 1,976 (30%) 23 (14–40) 2. 3 (2. 1–2. 5)
Misc* 6 (1. 3%) 282 (4%) 300 (14–365) 0. 21 (0. 1–0. 4)
Business 35 (6. 4%) 774 (12%) 30 (16–89) 0. 45 (0. 31–0. 61)
Holiday 58 (11%) 3,638 (55%) 19 (14–42) 0. 15 (0. 12–0. 20)
Missing 455   30 (19–42)  
Age group (years)     
0–15 97 (9. 7%) 302 (4. 5%) 30 (21–85) 3. 2 (2. 6–3. 9)
16–24 102 (10%) 611 (9%) 30 (17. 5–51) 1. 7 (1. 4–2. 0)
25–34 198 (20%) 1,520 (23%) 25 (14–42) 1. 3 (1. 1–1. 5)
35–44 270 (27%) 1,424 (21%) 21 (14–32) 1. 9 (1. 7–2. 1)
45–54 203 (20%) 1,345 (20%) 21 (14–30) 1. 5 (1. 3–1. 7)
55–64 83 (8. 3%) 973 (14. 5%) 30 (15–55. 5) 0. 85 (0. 68 – 1. 04)
65+ 47 (4. 7%) 495 (8%) 58. 5 (30–116) 0. 95 (0. 70–1. 23)
Missing 4    
Total 1,004 6,670   
  1. *Misc: Miscellaneous purpose of travel. IQR: Inter-quartile range.