Table.
Characteristics of travel-related infections in mainland China, 2014–16
| Overall (n=22 797) | Respiratory (n=19 662) | Gastrointestinal (n=189) | Vector-borne (n=831) | Blood-transmitted and sex-transmitted (n=1531) | Mucocutaneous (n=584) | |
|---|---|---|---|---|---|---|
| Sex | ||||||
| Male | 15 541 (68%) | 13 128 (67%) | 116 (61%) | 660 (79%) | 1198 (78%) | 439 (75%) |
| Female | 7256 (32%) | 6534 (33%) | 73 (39%) | 171 (21%) | 333 (22%) | 145 (25%) |
| Age, years | ||||||
| Median (IQR) | 30 (10–45) | 30 (9–45) | 33 (24–46) | 34 (25–44) | 39 (31–48) | 5 (4–26) |
| ≤9 | 5397 (24%) | 4948 (25%) | 20 (11%) | 25 (3%) | 2 (<1%) | 402 (69%) |
| 10–19 | 1501 (7%) | 1392 (7%) | 8 (4%) | 68 (8%) | 30 (2%) | 3 (1%) |
| 20–39 | 8104 (36%) | 6759 (34%) | 87 (46%) | 436 (52%) | 730 (48%) | 92 (16%) |
| 40–59 | 5862 (26%) | 4850 (25%) | 65 (34%) | 281 (34%) | 599 (39%) | 67 (11%) |
| ≥60 | 1767 (8%) | 1627 (8%) | 9 (5%) | 14 (2%) | 97 (6%) | 20 (3%) |
| Missing | 166 (1%) | 86 (<1%) | 0 (0%) | 7 (1%) | 73 (5%) | 0 (0%) |
| Citizenship | ||||||
| Mainland China | 16 779 (74%) | 15 039 (76%) | 122 (65%) | 528 (64%) | 628 (41%) | 462 (79%) |
| Other countries | 3983 (17%) | 2714 (14%) | 60 (32%) | 301 (36%) | 838 (55%) | 70 (12%) |
| Hong Kong, Macau, or Taiwan regions | 2035 (9%) | 1909 (10%) | 7 (4%) | 2 (<1%) | 65 (4%) | 52 (9%) |
| Case-finding approach | ||||||
| Fever screening | 17 643 (77%) | 16 237 (83%) | 76 (40%) | 553 (67%) | 397 (26%) | 380 (65%) |
| Medical inspection | 3967 (17%) | 2862 (15%) | 34 (18%) | 155 (19%) | 753 (49%) | 163 (28%) |
| Self-declaration | 690 (3%) | 248 (1%) | 46 (24%) | 89 (11%) | 293 (19%) | 14 (2%) |
| Reported by on-board staff | 497 (2%) | 315 (2%) | 33 (17%) | 34 (4%) | 88 (6%) | 27 (5%) |
| Reason for travel | ||||||
| Tourism | 15 346 (67%) | 14 305 (73%) | 96 (51%) | 228 (27%) | 279 (18%) | 438 (75%) |
| Labour | 3214 (14%) | 1974 (10%) | 56 (30%) | 440 (53%) | 735 (48%) | 9 (2%) |
| Sailor | 2346 (10%) | 1793 (9%) | 8 (4%) | 24 (3%) | 412 (27%) | 109 (19%) |
| Business | 1144 (5%) | 971 (5%) | 20 (11%) | 70 (8%) | 74 (5%) | 9 (2%) |
| Visiting friends or relatives | 428 (2%) | 348 (2%) | 4 (2%) | 53 (6%) | 7 (<1%) | 16 (3%) |
| Student | 319 (1%) | 271 (1%) | 5 (3%) | 16 (2%) | 24 (2%) | 3 (1%) |
| Entry–exit port | ||||||
| Air | 6606 (29%) | 5680 (29%) | 91 (48%) | 535 (64%) | 265 (17%) | 35 (6%) |
| Water (sea and river) | 5973 (26%) | 5254 (27%) | 19 (10%) | 56 (7%) | 471 (31%) | 173 (30%) |
| Land (highway and railway) | 10 218 (45%) | 8728 (44%) | 79 (42%) | 240 (29%) | 795 (52%) | 376 (64%) |
| Number of infections (incidence*) | ||||||
| 2014 | 2068 (8·2) | 1706 (6·7) | 22 (0·1) | 139 (0·5) | 163 (0·6) | 38 (0·2) |
| 2015 | 8977 (33·1) | 7771 (28·6) | 52 (0·2) | 417 (1·5) | 478 (1·8) | 259 (1·0) |
| 2016 | 11 752 (41·7) | 10 185 (36·2) | 115 (0·4) | 275 (1·0) | 890 (3·2) | 287 (1·0) |
Data are n (%), unless otherwise specified.
*
Incidence is the number of infections per million arriving travellers per year.