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Table 13 (9) "Closeness of Fit" Calculations.

From: The genetic basis of multiple sclerosis: a model for MS susceptibility

 

Number of Susceptibility Genes Required (n)

 

5

10

11

12

13

14

15

Frequency of Susceptibility (r)

Closeness of Fit (Target ≤4.0)

r = 0.25

24,106

29,422

28,838

28,228

29,694

29,258

28,805

r = 0.33

19,148

4,872

5,600

4,166

4,788

5,416

4,150

r = 0.5

2,139

459

555

451

320

378

189

r = 1

789

90

43.9

39.7

18.9

17.7

9.4

r = 2

394

21.4

12.1

6.9

3.3

2.4

2.5

r = 4

337

9.9

4.4

2.2

1.7

2.1

3.0

r = 8

286

6.8

3.1

1.9

2.3

3.4

4.4

r = 16

262

5.8

2.8

2.4

3.3

4.6

5.8

 

Number of Susceptibility Genes Required (n)

 

16

17

18

30

40

50

60

Frequency of Susceptibility (r)

Closeness of Fit (Target ≤ 4.0)

r = 0.25

31,198

30,935

31,545

31,749

32,041

32,713

32,776

r = 0.33

3,137

3,593

4,106

1,459

1,280

885

2,042

r = 0.5

228

114

140

21.4

18.3

18.7

38.0

r = 1

5.9

6.2

4.7

8.5

10.6

11.8

11.6

r = 2

3.0

3.6

4.2

10.9

13.5

14.9

12.7

r = 4

4.0

5.1

6.3

13.2

15.5

16.8

14.9

r = 8

5.5

6.8

8.0

14.7

16.7

17.7

16.2

r = 16

6.8

8.1

9.4

15.6

17.3

18.2

18.3

  1. * (Targets are in bold; optimal fit is underlined)
  2. * Calculated as the sum of the squared percent deviations from published epidemiological observations (E) of the high (H) and low (L) estimates derived from the model for non-twin siblings, parents/children, offspring of conjugal MS couples, and second and third degree relatives of MS probands. For each category, this squared percent deviation is defined as: [(H - E)/E + (L - E)/E]2