Table 2: Eating Disorder Dimensions for the Internet Program and Control Groups at Baseline, Post and Follow-up Evaluations; p-values, Effect Sizes and Confidence Intervals for Differences between Groups

Baseline assessment Post assessment Follow-up assessment Post Differences Follow-up Differences
Internet n=22 Control n=20 Internet n=20 Control n=20 Internet n=20 Control n=18 p-value ESa CI (95%) p-value ESb CI (95%)
EDE-Q objective binge days 10.2 (8.4) 7.6 (9.6) 3.4 (4.9) 4.9 (8.9) 2.3 (3.7) 4.4 (8.7) .308 0.028 -6.86; 2.23 .251 0.037 -7.02; 1.90
EDE-Q Restraint 1.6 (1.1) 1.9 (1.4) 1.9 (1.3) 1.6 (1.1) 1.6 (1.5) 1.3 (1.5) .304 0.028 -0.34; 1.06 .247 0.038 -0.37; 1.39
EDE-Q Eating concern 2.2 (1.7) 2.5 (1.7) 1.0 (1.0) 1.5 (1.4) 0.8 (0.9) 0.9 (1.3) .282 0.031 -1.05; 0.31 .979 0.000 -0.72; 0.71
EDE-Q Shape concern 4.3 (0.7) 4.3 (1.1) 3.2 (1.2) 3.9 (1.1) 2.7 (1.4) 3.1 (1.8) .042 0.107 -1.26; -0.03 .133 0.063 -1.48; 0.20
EDE-Q Weight concern 4.1 (0.9) 3.6 (1.1) 3.0 (0.9) 3.2 (1.2) 2.4 (1.0) 2.7 (1.7) .073 0.084 -1.01; 0.05 .166 0.054 -1.47; 0.26
EDE-Q total score 3.0 (0.7) 3.1 (1.0) 2.3 (0.9) 2.6 (0.9) 1.9 (1.0) 2.1 (1.2) .290 0.030 -0.62; 0.19 .669 0.005 -0.78; 0.50
TFEQ Restraint 7.7 (5.0) 8.7 (4.2) 9.5 (5.1) 9.4 (4.4) 8.9 (4.5) 8.3 (4.0) .621 0.007 -1.58; 2.60 .376 0.022 -1.03; 2.67
TFEQ Disinhibition 11.6 (2.4) 11.6 (2.5) 9.8 (3.2) 11.0 (2.8) 8.4 (3.5) 9.5 (3.6) .075 0.083 -2.98; 0.15 .246 0.038 -3.13; 0.83
TFEQ Hunger 7.2 (2.9) 8.2 (3.2) 5.4 (3.4) 8.0 (3.7) 3.9 (3.1) 6.1 (3.9) .028 0.123 -3.84; -0.23 .060 0.097 -3.68; 0.08
BMI 35.9 (4.9) 36.4 (4.4) 34.5 (4.7) 36.2 (4.6) 34.0 (4.8) 35.7 (4.4) .413 0.018 -1.62; 0.68 .481 0.014 -2.41; 1.16

Note: EDE-Q Eating Disorder Examination-Questionnaire; TFEQ Three-Factor Eating Questionnaire; BMI Body Mass Index; CI confidence intervalsMeans (SD)
a Effect sizes (partial eta squares) of the differences at post assessment
b Effect sizes (partial eta squares) of the differences at follow-up assessment