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Table 1 Overview of the test characteristics of the four selection methods.

From: Defining frequent attendance in general practice

 

6 cl. method 3%FA1

6 cl. method 10%FA2

4 cl. method 3%FA3

4 cl. method 10%FA4

 

women

men

women

men

women

men

women

men

Sensitivity

94,2

89,4

94,0

93.1

89.4

93.6

94.7

91.5

Specificity

99,8

99,8

99,3

99.8

99.8

99.6

99.6

99.1

PPV5

93,7

93,7

94,3

98.2

93.7

89.5

96.3

93.1

NPV6

99,8

99,6

99,2

99.0

99.6

99.8

99.3

98.8

Kappa

0.937

0.912

0.934

0.950

0.912

0.911

0.949

0.912

 

3 cl. method 3%FA7

3 cl. method 10%FA8

3 group method 3%FA9

3 group method 10%FA10

 

women

men

women

men

women

men

women

men

Sensitivity

89.0

84.8

96.0

85.5

76.1

73.6

79.3

86.5

Specificity

99.3

99.3

98.3

98.8

99.1

99.4

98.5

97.6

PPV

88.1

80.4

87.8

90.6

74.1

82.3

86.9

83.1

NPV

99.6

99.5

99.5

98.0

99.2

99.1

97.4

98.1

Kappa

0.881

0.819

0.906

0.864

0.742

0.770

0.809

0.826

 

6 cl. method

4 cl. method

3 cl. method

3 group method

 

3% FA

10% FA

3% FA

10% FA

3% FA

10% FA

3% FA

10% FA

 

Men and women

Men and Women

Men and women

Men and Women

Sensitivity

91.8

93.5

90.9

93.0

86.9

90.6

74.8

83.0

Specificity

99.8

99.5

99.7

99.3

99.4

98.5

99.3

98.0

PPV

93.7

96.3

91.4

94.6

84.1

89.1

78.0

84.8

NPV

99.7

99.1

99.7

99.1

99.5

98.7

99.1

97.7

Kappa

0.925

0.942

0.912

0.930

0.849

0.885

0.756

0.818

  1. 1. 6 cl. method: selection FAs per 10 years of age.
  2. 2. Idem
  3. 3. 4 cl. method: selection of FAs per 15 years of age
  4. 4. Idem
  5. 5. positive predictive value
  6. 6. negative predictive value
  7. 7. 3 cl. method: selection of FAs in 3 age groups (15–44; 45–64; 65–74).
  8. 8. Idem
  9. 9. 3 group method: selection of male FAs in two age groups (15–44; 45–74) and women in one group.
  10. 10. Idem