Table 1 Baseline characteristics of study participants (n = 47,022)
All (n = 47,022) | Non-VFR (n = 40,569) | VFR (n = 6453) | Comparison | |
|---|---|---|---|---|
N (column %) | N (column %) | N (column %) | P value° | |
Sex | < 0.001 | |||
Male | 22,712 (48.3) | 20,224 (49.8) | 2488 (38.6) | |
Female | 24,310 (51.7) | 20,345 (50.2) | 3965 (61.4) | |
Agea | 34.7 ± 13.9 | 35.8 ± 12.5 | 28.7 ± 18.7 | < 0.001 |
Area of origin | < 0.001 | |||
Africa | 2257 (4.8) | 215 (0.5) | 2042 (31.7) | |
Asia | 752 (1.6) | 124 (0.3) | 628 (9.7) | |
Australia | 19 (0.0) | 12 (0.0) | 6 (0.1) | |
Europe | 39,828 (84.7) | 39,764 (98.0) | 64 (1.0) | |
North America | 28 (0.1) | 20 (0.1) | 8 (0.1) | |
Cen. America | 517 (1.1) | 36 (0.1) | 481 (7.5) | |
South America | 3621 (7.7) | 397 (1.0) | 3223 (49.9) | |
Travel destination | < 0.001 | |||
Africa | 14,859 (31.6) | 12,779 (31.5) | 2080 (32.2) | |
Asia | 6301 (13.4) | 5842 (14.4) | 459 (7.1) | |
SEA | 11,614 (24.7) | 11,481 (28.3) | 133 (2.1) | |
Cen. America | 3950 (8.4) | 3489 (8.6) | 461 (7.1) | |
South America | 9640 (20.5) | 6369 (15.7) | 3270 (50.7) | |
Others | 658 (1.4) | 609 (1.5) | 49 (0.8) |