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Table 3 The validity of predictive model under different cut-off value in different populations (%)

From: Prediction of posttraumatic stress disorder among adults in flood district

 

Group 2

All subjects

Cutoff value

Sen

Spe

CA

PPV

NPV

Sen

Spe

CA

PPV

NPV

25.0

100.0

0.0

9.2

9.2

 

100.0

0.0

9.2

9.2

 

39.5

99.9

8.2

16.6

9.9

99.9

99.9

8.4

16.8

9.9

99.9

57.5

95.3

51.2

55.2

16.5

99.1

94.6

51.4

55.4

16.4

99.0

62.5

90.6

60.4

63.2

18.7

98.5

90.3

60.6

63.3

18.8

98.4

63.5

89.4

63.4

65.8

19.8

98.3

88.8

63.3

65.6

19.6

98.2

64.5

88.0

65.9

67.9

20.6

98.2

87.4

65.8

67.8

20.5

98.1

65.5

86.8

67.4

69.2

21.2

98.1

86.5

67.3

69.1

21.1

98.0

66.5

85.1

69.6

71.0

22.0

97.9

85.3

69.4

70.9

22.0

97.9

67.5

84.0

72.2

73.3

23.4

97.8

83.3

71.8

72.9

23.0

97.7

68.5

82.3

73.9

74.7

24.1

97.6

81.5

73.4

74.1

23.6

97.5

69.5

80.5

75.0

75.5

24.5

97.4

80.2

74.5

75.0

24.1

97.4

70.5

78.8

76.4

76.6

25.2

97.3

78.8

75.9

76.2

24.8

97.3

71.5

76.4

79.4

79.1

27.2

97.1

76.0

79.0

78.7

26.8

97.0

73.5

71.1

83.3

82.2

30.0

96.6

69.9

83.0

81.8

29.3

96.5

78.5

49.6

89.3

85.7

31.9

94.6

51.8

89.6

86.1

33.5

94.8

97.5

10.9

98.8

90.7

47.8

91.7

11.6

98.8

90.8

49.4

91.7

130.0

0.0

100.0

90.8

 

90.8

0.0

100.0

90.8

 

90.8