Table 2 Predictive values of independent risk factors and established models containing different risk factors for in-hospital mortality of all SFTS patients

Age (years)

1.107 (1.039–1.176)

< 0.0001

> 66

0.742 (0.69–0.789)

70.1

68.4

45.2

86

2.22

0.44

> 74

39.1

89.3

57.6

79.8

3.66

0.68

AST (U/L)

1.002 (1.000–1.003)

0.01

> 205

0.794 (0.729–0.849)

77.4

67

45.8

89.1

2.34

0.34

> 735

38.1

96.1

78

81.2

9.86

0.64

qSOFA

3.654 (1.488–6.378)

< 0.0001

> 0

0.818 (0.774–0.858)

85.1

68.8

50.3

95.2

2.73

0.22

> 1

41.4

95.6

81.8

81.6

12.1

0.61

SIRS

1.625 (1.025–2.581)

0.039

> 1

0.740 (0.688–0.787)

66.7

71.8

46.8

81.3

2.36

0.46

> 2

34.5

91.9

61.2

79

4.25

0.71

M1

2.95 (2.308–3.771)

< 0.0001

> 9.22

0.919 (0.883–0.946)

81.6

85.9

68.3

92.6

5.79

0.21

> 10.27

65.2

95.7

85.1

88.2

15.3

0.36

M2

3.122 (2.401–4.033)

< 0.0001

> 8.034

0.894 (0.855–0.925)

87.4

75.2

56.7

94.1

3.52

0.17

> 9.942

51.7

91.9

90

84.5

24.2

0.349

M3

2.986 (2.324–3.837)

< 0.0001

> 8.25

0.899 (0.861–0.930)

85.1

78.6

59.7

93.4

3.98

0.19

> 9.06

71.3

91.5

75.6

89.5

8.34

0.31

M4

3.26 (2.437–4.297)

< 0.0001

> 8.034

0.872 (0.830–0.906)

85.9

81.6

60.6

90.1

4.13

0.3

> 8.44

63.2

91.0

72.4

86.9

7.04

0.4