Table 4.

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

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

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)

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