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Table 2 Comparison of allele vectors in spaces Y and Z.

From: A geometric and algebraic view of MHC-peptide complexes and their binding properties

HLA

Numerical

Categorical

  

allele

R2 (%)

Sensitivity (%)

Specificity (%)

Likelihood Ratio

A1

27.1

50

97

15

A2

71.9

67

100

 

A3

63.7

50

98

22

A11

40.5

50

97

18

A24

25.8

100

97

36

A29

12.7

67

95

13

A31

26.8

100

97

30

A33

16.0

100

96

25

B7

36.6

60

94

10

B8

14.4

50

95

10

B14

22.9

50

94

9

B27

71.8

100

99

86

B35

36.9

100

97

30

B38

0.2

0

93

 

B44

18.3

25

96

6

B51

48.6

100

98

45

B53

22.4

67

97

20

B54

40.9

67

98

30

ALL

27.7

64

96

18

  1. 'R2' stands for the coefficient of determination in the regression analysis of numerical values of the vectors in spaces Y and Z (see text) for each allele. (In all cases the p value was 0.000, except for B38, which was 0.51.) Allele vectors values in Y and Z were converted to categorical values (0, 1) using cut-off values and pairs of vectors for each allele were compared using a 2 × 2 contingency table. 'Sensitivity', 'specificity', and 'likelihood ratio' refer to the prediction of a Z vector by the corresponding Y vector, and were calculated from these 2 × 2 tables.