Table 1. Characteristics of hospitalized case-patients with confirmed severe fever with thrombocytopenia syndrome, by outcome, South Korea, 2013.
| Characteristics | No. (% or range) |
p value | ||
|---|---|---|---|---|
| Total, n = 35 | Died, n = 16 | Recovered, n = 19 | ||
| Sex | ||||
| M | 17 (49) | 7 (44) | 10 (53) | 0.738 |
| F | 18 (51) | 9 (56) | 9 (47) | |
| Age, y |
69 (28–84) |
73.5 (62–82) |
61 (28–84) |
0.026 |
| Residence | ||||
| Rural | 26 (74) | 11 (69) | 15 (79) | 0.700 |
| Urban |
9 (26) |
5 (31) |
4 (21) |
|
| Occupation | ||||
| Farmers | 25 (71) | 12 (75) | 13 (68) | 0.723 |
| Others |
10 (29) |
4 (25) |
6 (32) |
|
| Medical history | ||||
| Diabetes mellitus | 11 (31) | 5 (31) | 6 (32) | 1.000 |
| Hypertension | 18 (51) | 9 (60) | 9 (47) | 0.738 |
| Hepatitis B | 2 (6) | 2 (13) | 0 (0) | 0.202 |
| Tuberculosis |
1 (3) |
1 (6) |
0 (0) |
0.457 |
| Trace of tick bite | 11 (31) | 5 (31) | 6 (32) | 1.000 |
| Recognition of tick bite, n = 32 |
4 (13) |
2 (14) |
2 (11) |
1.000 |
| Exposure-related activities, n = 33† | ||||
| Agricultural work | 20 (61) | 9 (60) | 11 (61) | 1.000 |
| Forestry work | 7 (21) | 4 (27) | 3 (17) | 0.674 |
| Mountain climbing | 6 (18) | 1 (7) | 5 (28) | 0.186 |
| Visits to family members' grave |
3 (9) |
2 (13) |
1 (6) |
0.579 |
| Time elapsed, d | ||||
| From onset to admission | 4 (1–9) | 3.5 (1–7) | 4 (2–9) | 0.659‡ |
| From onset to clinical suspicion§ | 7 (3–22) | 6.5 (3–11) | 7 (3–22) | 0.612‡ |
| From onset to death | ND¶ | 10.5 (4–32) | ND | ND |
| From onset to discharge |
ND |
ND |
18 (10–49) |
ND |
| *ND, no data available. †Fisher exact test was used to compare groups, unless otherwise indicated. ‡Multiple responses were allowed. §Mann-Whitney U test was used to compare groups. ¶Days to clinical suspicion were determined based on the day of report to the Korea Centers for Disease Control and Prevention. | ||||