Table 1.
Main characteristics of the study population
| Characteristics | Total (N = 328) |
VFR (N = 176) |
Travellers (N = 25) |
Visitors (N = 127) |
|---|---|---|---|---|
| Region of travel or origin (for visitors) | ||||
| Sub-Saharan Africa | 302 | 169 | 7 | 126 |
| South and Central America | 11 | 4 | 7 | 0 |
| Southeast Asia and Indian subcontinent | 9 | 0 | 8 | 1 |
| Others/Unknown | 6 | 3 | 3 | 0 |
| Females, n (%) | 188 (57%) | 101 (57%) | 9 (36%) | 78 (61%) |
| Age (years), median (IQR) | 30 (5-42) | 33 (7-42) | 35 (28-42) | 19 (3-37) |
| Time elapsed since return from an endemic zone (days) | 10 (5-20) | 10 (5-21) | 10 (7-15) | 10 (4-22) |
| Travel to endemic country in the previous 5 years, n (%) | 319 (97%) | 169 (96%) | 23 (92%) | 127 (100%) |
| Previous malaria* |
195/302* (65%) |
99/158* (63%) | 1/21* (5%) | 95/123* (77%) |
| HIV+, n (%) | 23 (7%) | 9 (5%) | 0 (0%) | 14 (11%) |
| Hematologic disorders, n (%)** | 17 (5%) | 11 (6%) | 1 (4%) | 5 (4%) |
| Ongoing pregnancy, n (%) | 12 (4%) | 4 (2%) | 0 (0%) | 8 (6%) |
| Malaria +, n (%) | 108 (33%) | 68 (39%) | 2 (8%) | 38 (30%) |
Unless otherwise stated, data is presented as n/N (%), where N is the group size for which the variable was documented
* 26 patients had no recorded data from previous malaria episodes, and were excluded from this analysis
** Hematologic disorders included: 12 sickle cell anemia, three cases of alfa thalassemia and two cases of sickle cell trait