Table 1.
The characteristics of imported cases among foreign travelers in Chinese mainland, 2014‒2018
| Overall (n = 17,189) | Respiratory (n = 7351) | Gastrointestinal (n = 282) | VBD (n = 3128) | BSTI (n = 6114) | Mucocutaneous (n = 314) | p value | |
|---|---|---|---|---|---|---|---|
| Sex | < 0.001a | ||||||
| Male | 12,347 (71.8) | 5769 (78.5) | 165 (58.5) | 1861 (59.5) | 4310 (70.5) | 242 (77.1) | |
| Female | 4842 (28.2) | 1582 (21.5) | 117 (41.5) | 1267 (40.5) | 1804 (29.5) | 72 (22.9) | |
| Age | 33 (25–45) | 35 (25–48) | 31 (23–51) | 29 (20–41) | 33 (26–42) | 34 (25–46) | < 0.001a |
| 0–14 | 1485 (8.6) | 932 (12.7) | 30 (10.6) | 469 (15.0) | 18 (0.3) | 36 (11.5) | |
| 15–29 | 5326 (31.0) | 1755 (23.9) | 97 (34.4) | 1130 (36.1) | 2258 (36.9) | 86 (27.4) | |
| 30–44 | 6040 (35.1) | 2425 (33.0) | 68 (24.1) | 903 (28.9) | 2540 (41.5) | 104 (33.1) | |
| 45–59 | 3172 (18.5) | 1558 (21.2) | 33 (11.7) | 472 (15.1) | 1050 (17.2) | 59 (18.8) | |
| ≥ 60 | 1166 (6.8) | 681 (9.3) | 54 (19.1) | 154 (4.9) | 248 (4.1) | 29 (9.2) | |
| Destination | < 0.001a | ||||||
| Africa | 907 (5.3) | 137 (1.9) | 8 (2.8) | 479 (15.3) | 282 (4.6) | 1 (0.3) | |
| Asia | 10,105 (58.8) | 4833 (65.7) | 188 (66.7) | 2545 (81.4) | 2278 (37.3) | 261 (83.1) | |
| Europe | 1342 (7.8) | 694 (9.4) | 21 (7.4) | 22 (0.7) | 594 (9.7) | 11 (3.5) | |
| Latin America & Caribbean | 165 (1.0) | 94 (1.3) | 4 (1.4) | 19 (0.6) | 42 (0.7) | 6 (1.9) | |
| North America | 722 (4.2) | 520 (7.1) | 34 (12.1) | 3 (0.1) | 157 (2.6) | 8 (2.5) | |
| Oceania | 536 (3.1) | 468 (6.4) | 19 (6.7) | 10 (0.3) | 26 (0.4) | 13 (4.1) | |
| unknown | 3412 (19.8) | 605 (8.2) | 8 (2.8) | 50 (1.6) | 2735 (44.7) | 14 (4.5) | |
| Infection year | < 0.001a | ||||||
| 2014 | 1280 (7.4) | 445 (6.1) | 10 (3.5) | 334 (10.7) | 477 (7.8) | 14 (4.5) | |
| 2015 | 2413 (14.0) | 1025 (13.9) | 16 (5.7) | 644 (20.6) | 693 (11.3) | 35 (11.1) | |
| 2016 | 3545 (20.6) | 1740 (23.7) | 63 (22.3) | 494 (15.8) | 1177 (19.3) | 71 (22.6) | |
| 2017 | 5421 (31.5) | 2351 (32.0) | 69 (24.5) | 1254 (40.1) | 1625 (26.6) | 122 (38.9) | |
| 2018 | 4530 (26.4) | 1790 (24.4) | 124 (44.0) | 402 (12.9) | 2142 (35.0) | 72 (22.9) |
VBD Vector-borne disease, BSTI Blood/sex- transmitted infection
aTest for the categorical variable by Chi-square test