Table 1 Baseline characteristics of the subjects (n = 362)
Variable | Scrub typhus (n = 255) | SFTS | P valuec | |||
|---|---|---|---|---|---|---|
Eschar-positive | P valuea | Eschar-negative | P valueb | |||
n = 205 | n = 50 | n = 107 | ||||
Age, years (median, IQR) | 60 (49–71) | < 0.001 | 64.5 (51.2–70.7) | 0.004 | 71 (61–78) | < 0.001 |
Male gender, n (%) | 81 (39.5) | 0.044 | 22 (44.0) | 0.387 | 55 (51.4) | 0.054 |
Comorbidity | ||||||
 Diabetes mellitus | 19 (9.3) | 0.027 | 5 (10.0) | 0.200 | 19/106 (17.9) | 0.023 |
 Hypertension | 44 (21.5) | 0.030 | 13 (26.0) | 0.395 | 35 (32.7) | 0.039 |
 CVA | 7 (3.4) | 1.000 | 1 (2.0) | 1.000 | 4 (3.7) | 0.771 |
 Congestive heart failure | 9 (4.4) | 0.342 | 2 (4.0) | 0.593 | 2 (1.9) | 0.254 |
 Chronic liver disease | 7 (3.4) | 0.272 | 5 (10.0) | 0.013 | 1 (0.9) | 0.119 |
 Asthma/COPD | 7 (3.4) | 0.583 | 1 (2.0) | 0.665 | 5 (4.7) | 0.474 |
 Solid tumor | 6 (2.9) | 0.098 | 2 (4.0) | 0.098 | 0 | 0.111 |
 None | 126 (61.5) | 0.121 | 26 (52.0) | 0.969 | 56 (52.3) | 0.202 |
Seasonal occurrence, n (%) | ||||||
 Spring-summer (Mar-Aug) | 0 | < 0.001 | 0 | < 0.001 | 67 (62.6) | < 0.001 |
 Autumn (Sep-Dec) | 205 (100) |  | 50 (100) |  | 40 (37.4) |  |
Geographical location | ||||||
 Western area | 167 (81.5) | < 0.001 | 42 (84.0) | < 0.001 | 36/104 (34.6) | < 0.001 |
 Eastern area | 38 (18.5) |  | 8 (16.0) |  | 68/104 (65.4) |  |
Duration, mean (±SD), days | ||||||
 From onset of illness to admission | 6.63 (3.918) | < 0.001 | 6.38 (5.103) | 0.006 | 4.39 (3.66)) | < 0.001 |
 Hospital stay | 6.26 (11.927) | < 0.001 | 6.18 (3.757) | < 0.001 | 12.07 (9.57) | < 0.001 |
Mortality, in-hospital | 1 (0.5) | < 0.001 | 0 | < 0.001 | 43 (40.2) | < 0.001 |