Table 2.

Frequency and duration of mealtime behaviors in patients with AN and healthy controls.

	Healthy Controls (n=10)	Patients with AN (n=26)	Standardized difference€	p value
Behavior Latency (sec)
Drinking	120.2 ±118.1	172.5 ±356.4	−.009	.496§
Eating	38.9 ±15.8	69.5 ±63.3	−.295	.206§
Nibbling/Picking	649.3 ±384.2	199.4 ±188.7	.653	.002§
Behavior Frequency
Arranging/Inspecting	9.8 ±5.7	16.3 ±10.7	−.167	.080§
Body Checking	0.5 ±1.6	0.2 ±.6	.147	.974§
Cutting	1.2 ±1.1	10.5 ±13.3	−.270	.031§
Dissecting	1.5 ±2.0	5.6 ±5.7	−.307	.016§
Drinking	6.5 ±3.5	6.2 ±3.0	.054	.764
Eating	6.9 ±3.3	10.0 ±6.3	−.143	.170§
Hand Fidgeting	18.0 ±16.2	9.9 ±8.7	.371	.142§
Inappropriate Utensil Use	0 ±0	15.2 ±20.5	−.295	.003§
Napkin Use	8.9 ±7.1	5.6 ±5.7	.306	.164§
Nibbling/Picking	1.4 ±1.9	24.0 ±25.4	−.328	<.001§
Staring at Food	0.1 ±.3	1.4 ±2.3	−.370	.084§
Tearing	1.6 ±1.6	16.3 ±18.1	−.335	.266§
Behavior Duration (sec)
Arranging/Inspecting	67.5 ±40.0	160.2 ±138.0	−.236	.050§
Body Checking	0.9 ±2.8	2.0 ±9.7	−.088	.949§
Cutting	4.7 ±3.4	29.3 ±36.1	−.274	.009§
Drinking	28.5 ±15.7	25.4 ±16.6	.075	.507§
Eating	673.1 ±237.2	737.2 ±357.0	.107	.025
Napkin Use	87.4 ±131.6	46.1 ±102.1	.195	.257§
Staring at Food	4.4 ±13.8	15.8 ±37.6	−.227	.156§

Note.

^§p value from Wilcoxon test for variables that did not pass Shapiro-Wilk test for normality

^€Standardized difference (measure of effect size) between patients and healthy controls adjusted for meal length