Table 2. Chlamydia positivity and proportion of total chlamydia cases among travellers, by country of origin, Melbourne, Australia, 2007–2017 (n = 49,400).
| Country | Malesa (n = 23,570) |
Femalesb (n = 25,830) |
||||
|---|---|---|---|---|---|---|
| Tested positive for chlamydia | Tested for chlamydia | Chlamydia positivity % (95% CI) |
Tested positive for chlamydia | Tested for chlamydia | Chlamydia positivity % (95% CI) |
|
| European Union countries | ||||||
| France | 77 | 586 | 13.1 (10.6–16.1) | 83 | 779 | 10.7 (8.7–13.0) |
| Germany | 30 | 349 | 8.6 (6.1–12.1) | 67 | 508 | 13.2 (10.5–16.4) |
| Ireland | 158 | 1,270 | 12.4 (10.7–14.4) | 109 | 1,196 | 9.6 (7.6–10.9) |
| Italy | 47 | 268 | 17.5 (13.5–22.5) | 28 | 220 | 12.7 (9.0–17.8) |
| Netherlands | 23 | 174 | 13.2 (9–19.1) | 31 | 316 | 9.8 (7.0–13.6) |
| Sweden | 25 | 172 | 14.5 (10.0–20.6) |
95 | 765 | 12.4 (10.3–15.0) |
| UK | 518 | 3,615 | 14.3 (13.2–15.5) | 435 | 4,117 | 10.6 (9.7–11.6) |
| North America | ||||||
| Canada | 36 | 269 | 13.4 (9.8–18.0) | 77 | 838 | 9.2 (7.4–11.3) |
| US | 33 | 403 | 8.2 (5.9–11.3) | 67 | 864 | 7.8 (6.2–9.7) |
| Asia Pacific | ||||||
| China | 51 | 558 | 9.1 (7.1–11.8) | 98 | 711 | 13.8 (11.4–16.5) |
| Malaysia | 17 | 174 | 9.8 (6.2–15.1) | 25 | 245 | 10.2 (7.0–14.6) |
| New Zealand | 114 | 704 | 16.2 (13.7–19.1) | 72 | 798 | 9.0 (7.2–11.0) |
| Other countriesd | 609 | 5,995 | 10.2 (9.4–11.0) | 777 | 7,689 | 10.1 (9.5–10.1) |
UK: United Kingdom; US: United States.
a Total chlamydia cases among male travellers: 1,537.
b Total chlamydia cases among female travellers: 1,681.
d The 12 countries accounting for the greatest number of chlamydia cases are listed. The remaining cases of chlamydia among travellers are grouped under ‘Other countries’, which includes 179 countries. In total, 191 countries are included.