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Table 6 Morgan-Russell subscale E2 (emancipation from family); dose–response analysis

From: Effects of autism spectrum disorders on outcome in teenage-onset anorexia nervosa evaluated by the Morgan-Russell outcome assessment schedule: a controlled community-based study

Dose AN study 2 AN study 3 AN study 4 Analysis for time trend doubly ordered r × c contingency tables Linear-by-linear association test Exact Monte Carlo
  Response category Response category Response category Test statistic P (99% CI)
  0 4 8 12 0 4 8 12 0 4 8 12   
Never ASD 2 5 8 19 2 2 7 23 0 1 5 28 +2.562 0.01 (0.008 to 0.014)
ASD × 1-3 0 2 0 8 0 1 1 8 0 1 2 7 0 1 (0.9995 to 1)
ASD × 4 1 2 0 3 0 2 1 3 2 1 2 1 −0.743 0.54 (0.53 to 0.56)
Dose–response analysis doubly ordered r × c contingency tables Linear-by-linear association test Linear-by-linear association test Linear-by-linear association test Stratified r × c contingency tables Cochran-Mantel-Haenszel test  
Test statistic −0.541 −0.483 −3.814 −2.606  
Exact Monte Carlo P 0.6 0.72 0.0005 0.01  
99% CI 0.59 to 0.62 0.71 to 0.74 0 to 0.001 0.008 to 0.013  
  1. AN anorexia nervosa, AN study 2 second anorexia nervosa examination, AN study 3 third anorexia nervosa examination, AN study 4 fourth anorexia nervosa examination, ASD autism spectrum disorders, never ASD individuals who had never been assigned an ASD diagnosis, ASD × 1–3 those who had been assigned an ASD diagnosis in at least one study, but not at all four studies, ASD × 4 those with an ASD diagnosis at all four examinations, CI confidence interval, r × c rows and columns.