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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Eat Behav. 2015 Jul 2;19:28–32. doi: 10.1016/j.eatbeh.2015.06.005

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