Table 1.
Demographics, travel information, and destinations of 460 travelers recruited at the travel clinic during their pre-travel visit, all staying outside the Nordic countries for more than four days and less than 6 months. The data are given as numbers of cases and their proportions
| Number | (%a) | |
|---|---|---|
| Sex (missing data = 0) | ||
| Male | 173 | (38) |
| Female | 287 | (62) |
| Age, median (IQR) (missing data = 0) | 35 (27.0–54.0) | |
| 0–17, children | 35 | (8) |
| 18–35, young adults | 196 | (43) |
| 36–55, middle aged | 120 | (26) |
| 56–, older travelers | 109 | (24) |
| Underlying diseases (missing data = 0) | 192 | (42) |
| Asthma, atopy and/or allergy | 56 | (12) |
| Hypertension | 51 | (11) |
| Psychiatric disorder or medication | 25 | (5) |
| Cardiovascular disease | 14 | (3) |
| GI disorder b | 13 | (3) |
| Neurological disorder | 12 | (3) |
| DM | 9 | (2) |
| Rheumatic disease | 6 | (1) |
| Other disease and conditions | 78 | (17) |
| Contraceptives or postmenopausal hormone replacement therapy | 53 | (12) |
| Duration of travel, median in days (IQR) (missing data = 2) | 16 (12.8–27.3) | |
| 1 week or less (missing data = 0) | 27 | (6) |
| More than a week and less than a month | 334 | (73) |
| 1–5 months | 99 | (22) |
| Purpose of travel (missing data = 1) | ||
| Vacation | 383 | (83) |
| Business | 38 | (8) |
| Other/multiple c | 38 | (8) |
| Geographic region (missing data = 0) d | ||
| South-Eastern Asia | 107 | (23) |
| Eastern Africa | 96 | (21) |
| Western Africa, Middle Africa | 86 | (19) |
| Southern Asia | 68 | (15) |
| Latin America and the Caribbean | 41 | (9) |
| Southern Africa | 26 | (6) |
| Europe, Northern America | 15 | (3) |
| Northern Africa, Western Asia | 12 | (3) |
| Eastern Asia, Central Asia | 9 | (2) |
a Proportion of positive among those from whom information was available
b Crohn's disease, irritable bowel syndrome, primary biliary cirrhosis, diverticulosis, microscopic colitis, celiac disease
c 14 (3 %) travelers reported two or more purposes of travel
d Given according to primary destination. Categorized into three subgroups: Asia (Western Asia, South-Eastern Asia, Southern Asia, Eastern Asia, and Central Asia), Africa (Eastern Africa, Western Africa, Middle Africa, Southern Africa, and Northern Africa), and the others (Latin America and the Caribbean, Europe, North America)