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Table 4 Morgan-Russell subscale E2 (Emancipation from family); dose–response analysis in the AN group

From: Effects of autism on 30-year outcome of anorexia nervosa

Dose

Emancipation from family

Analysis for time trend

    

Doubly ordered R × C tables

Linear-by-linear association test

AN Study 2

AN Study 3

AN Study 4

AN Study 5

Test Statistic

Exact P

Response category

Response category

Response category

Response category

 

0

4

8

12

0

4

8

12

0

4

8

12

0

4

8

12

Never ASD

2

5

9

19

2

2

7

24

0

1

5

29

0

1

3

27

 + 3.269

0.0008

ASD × 1–3

0

2

0

8

0

1

1

8

0

1

2

7

0

0

1

9

 + 0.8723

0.5

ASD × 4

1

2

0

3

0

2

1

3

2

1

2

1

1

1

1

3

- 0.1564

0.9

Dose–Response analysis

Linear-by-linear association test

Stratified R × C contingency tables

             

Doubly oredered R × C tables

Cochran–Mantel–Haenszel Test

             

Test statistic

−0.517

−0.5369

−3.814

−2.314

Test statistic −3.301

             

Exact P

0.7

0.6

0.0003

0.025

Exact p = 0.001

             
  1. AN: anorexia nervosa; R × C: rows and columns; AN study 2: 6-year follow-up; AN study 3: 10-year follow-up; AN study 4: 18-year follow-up; AN study 5: 30-year follow-up; ASD × 4: Individuals in the AN group with an ASD diagnosis at AN Study 1 to AN Study 4 (all four examinations) (n = 6); ASD × 1–3: those who had been assigned an ASD diagnosis at least once and at most three times (n = 10); never ASD: those who had never fulfilled criteria for ASD (n = 34)
  2. Raw data are situated in the middle of the table. Results of the initial omnibus test, a stratified Cochran–Mantel–Haenszel test for a doubly ordered R × C table, are placed in the lower right corner. Results of the analyses for time trend, the Linear-by-Linear Association test, are placed to the right of each level of ‘dose’. Below each follow-up study we have placed the results of the ‘dose–response’ analyses, using the Linear-by-Linear Associations test