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Table 3 Univariate analysis of risk factors for death in SFTS clusters*

From: Transmission and mortality risk assessment of severe fever with thrombocytopenia syndrome in China: results from 11-years' study

Study variables

n = 118

Death

n = 26

Cured patients

n = 92

χ2

t

U

P

Gender

   

4.56

  

 < 0.05

 Male

67 (56.8)

10 (38.5)

57 (62.0)

    

 Female

51 (43.2)

16 (61.5)

35 (38.0)

    

Agea

    

6.09

 

 < 0.05

 Range

18–84

51–84

18–84

    

 Mean (SD)

59.1 (14.2)

69.2 (7.6)

56.3 (14.4)

    

Occupation

   

0.04

  

 > 0.05

 Farmers

110 (93.2)

24 (92.3)

86 (93.5)

    

 Other occupations

8 (6.8)

2 (7.7)

6 (6.5)

    

Transmission route

   

11.51

  

 < 0.05

 Tick-bite /suspected tick bite

51 (43.2)

18 (69.2)

33 (35.9)

    

 Blood contactb

39 (33.1)

3 (11.5)

36 (39.1)

    

 Non-blood contactc

18 (15.3)

2 (7.7)

16 (17.4)

    

 Not known

10 (8.5)

3 (11.5)

7 (7.6)

    

Period from onset to diagnosis (days)a

    

796

 < 0.05

 Median (IQR)

3.0 (1.3–4.0)

3.5 (3.0–5.0)

2.0 (1.0–4.0)

    
  1. aData are n (%) of case, unless otherwise indicated. Percentages may not total 100 because of rounding. SD, standard deviation. IQR, inter quartile range
  2. bBlood contact refers to contacting the patients’ blood, bloody fluids or secretions and the bleeding corpse
  3. cNon-blood contact refers to contacting the patients’ fluids or secretions other than blood