Skip to main content
. 2019 Jun 29;8:59. doi: 10.1186/s40249-019-0566-0

Table 2.

Primary characteristics of the diagnosis and reporting of scrub typhus cases in China, 2006–2016.

Characteristics 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Overall
Number of cases 1254 1340 2613 3237 4088 6020 8928 11 111 16 035 17 293 21 562 93 481
Number of probable cases (%) 1049 (83.7)a 1187 (88.6) 2360 (90.3) 2939 (90.8) 3811 (93.2) 5630 (93.5) 8555 (95.8) 10 536 (94.8) 15 339 (95.7) 16 696 (96.5) 20 997 (97.4) 89 099 (95.3)
Number of confirmed cases (%) 205 (16.3) 153 (11.4) 253 (9.7) 298 (9.2) 277 (6.8) 390 (6.5) 373 (4.2) 575 (5.2) 696 (4.3) 597 (3.5) 565 (2.6) 4382 (4.7)
Number of fatal cases 0 1 3 0 11 6 9 4 8 3 12 5
Mortality rate (per 100 000) 0 0.00008 0.00023 0 0.00082 0.00045 0.00066 0.00029 0.00058 0.00022 0.00087 0.0003
Number of cases by medical care institution level
 City hospitals (n, %) 324 (25.8) 315 (23.5) 688 (26.3) 853 (26.4) 1118 (27.3) 1527 (25.4) 2585 (29.0) 3244 (29.2) 4915 (30.7) 4838 (28.0) 5488 (25.5) 25 895 (27.7)
 County hospitals (n, %) 688 (54.9) 749 (55.9) 1376 (52.7) 1671 (51.6) 2144 (52.4) 3249 (54.0) 4507 (50.5) 5495 (49.5) 8264 (51.5) 9574 (55.4) 11 966 (55.5) 49 683 (53.1)
 Primary medical centres (n, %) 201 (16.0) 247 (18.4) 460 (17.6) 648 (20.0) 760 (18.6) 1141 (19.0) 1743 (19.5) 2331 (21.0) 2855 (17.8) 2834 (16.4) 3758 (17.4) 16 978 (18.2)
Number of medical care institutions reporting cases 229 291 433 455 523 749 906 1009 1134 1229 1474 2527
 City hospitals (n, %) 73 (31.9) 78 (26.8) 117 (27.0) 135 (29.7) 147 (28.1) 180 (24.0) 219 (24.2) 260 (25.8) 287 (25.3) 290 (23.6) 318 (21.6) 505 (20.0)
 County hospitals (n, %) 101 (44.1) 127 (43.6) 196 (45.3) 181 (39.8) 209 (40.0) 292 (39.0) 344 (38.0) 381 (37.8) 446 (39.3) 513 (41.7) 624 (42.3) 915 (36.2)
 Primary medical centres (n, %) 55 (24.0) 85 (29.2) 119 (27.5) 137 (30.1) 165 (31.5) 276 (36.8) 342 (37.7) 367 (36.4) 400 (35.3) 424 (34.5) 531 (36.0) 1103 (43.6)
Interval from illness onset to diagnosis (median, IQR) 7 (3–11)b 7 (3–10) 7 (3–10) 6 (2–10) 6 (2–9) 5 (2–9) 5 (2–9) 5 (2–9) 5 (2–9) 5 (2–8) 5 (2–8) 5 (2–9)
 City hospitals (median, IQR) 8 (4–14) 8 (4–12) 8 (3–14) 7 (2–12) 7 (3–13) 7 (2–12) 6 (2–11) 7 (2–11) 6 (2–11) 6 (1–11) 6 (1–10) 6 (2–11)
 County hospitals (median, IQR) 7 (3–11) 7 (3–10) 7 (3–10) 6 (2–9) 6 (3–9) 6 (2–9) 5 (2–8) 5 (2–8) 5 (2–8) 5 (3–8) 5 (2–8) 5 (2–8)

 Primary medical centres

(median, IQR)

6 (3–8.5) 5 (2–8) 4 (1–8) 5 (2–8) 3 (1–7) 4 (1–6) 4 (1–6) 4 (1–6) 4 (1–7) 3 (1–6) 3 (1–6) 4 (1–7)

aThe data are presented as the number(%) of cases, unless otherwise indicated. bIQR Interquartile range (P25 − P75).