Table 2 Predictive validity of the tools/procedures used in the Steps 1 and 2 and 6 sequential fall risk screening algorithms

 Clinician’s 3 key questions

0.845

1

93.9

75.0

62.6

96.5

< 1

 Thai-SIB 12 items

0.828

4

77.7

88.0

74.2

89.8

< 5

 TUG

0.584

10

75.0

41.9

36.5

79.0

<1

 30-s-Chair Stand

0.526

^a

8.8

96.4

52.0

70.3

<1

 4-Stage balance test

0.515

^b

4.7

98.2

53.8

69.8

<2

  TUG

0.774

^c

71.6

83.1

65.4

86.8

<2

  30-s-Chair Stand

0.539

^c

8.8

99.1

81.3

70.9

<2

  4-Stage balance test

0.521

^c

4.7

99.4

77.8

70.1

<3

  TUG

0.767

^c

62.2

91.3

76.0

84.4

<6

  30-s-Chair Stand

0.531

^c

7.4

98.8

73.3

70.5

<6

  4-Stage balance test

0.516

^c

4.1

99.1

66.7

69.9

<7