Table 5.

Results of Tukey honest significant difference follow-up analyses: college dining hall simulation study conducted among first-year students (n 129) from a Northeastern US university, February 2014–May 2015

	Mean difference
Pair	(I – J)	se	P
Percentage of optimal choices
OD v. SD	94·33	4·66	<0·001
OD v. FA	45·39	4·31	<0·001
SD v. FA	−48·94	4·66	<0·001
Amount of food consumed (g)
OD v. SD	32·55	20·70	0·261
OD v. FA	−10·01	19·12	0·860
SD v. FA	−42·56	20·70	0·103
Total energy (kcal)
OD v. SD	−331·20	37·26	<0·001
OD v. FA	−220·97	34·42	<0·001
SD v. FA	110·23	37·26	0·010
Fat (% of energy)
OD v. SD	−27·94	2·38	<0·001
OD v. FA	−20·51	2·21	<0·001
SD v. FA	7·43	2·39	0·007
Saturated fat (% of energy)
OD v. SD	−3·37	0·64	<0·001
OD v. FA	−1·44	0·59	0·042
SD v. FA	1·93	0·64	0·009
Carbohydrate (% of energy)
OD v. SD	33·48	2·98	<0·001
OD v. FA	20·86	2·77	<0·001
SD v. FA	−12·62	2·99	<0·001
Protein (% of energy)
OD v. SD	−3·44	1·34	0·031
OD v. FA	0·60	1·25	0·881
SD v. FA	4·04	1·35	0·009
Sugar (% of energy)
OD v. SD	22·72	2·10	<0·001
OD v. FA	13·19	1·95	<0·001
SD v. FA	−9·54	2·11	<·001
Fibre (g)
OD v. SD	0·34	0·26	0·409
OD v. FA	−0·12	0·24	0·869
SD v. FA	−0·46	0·26	0·192

OD, optimal default; SD, suboptimal default; FA, free array.