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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: J Psychiatr Res. 2012 Dec 11;47(3):323–328. doi: 10.1016/j.jpsychires.2012.11.012

Table 2.

Linear Mixed Model Results of PANAS Negative Affect and Guilt

Parameter Negative Affect
Guilt
Estimate SE t df p Estimate SE t df p
Intercept 25.63 0.64 40.23 237.03 <.001 10.94 0.26 41.84 247.64 <.001
Time −2.27 0.58 −3.90 1165.54 <.001 −0.84 0.25 −3.32 1192.71 <.001
SIV −0.58 0.61 −0.96 1086.18 .340 −0.40 0.27 −1.48 1122.36 .138
Dx −1.89 1.43 −1.33 241.40 .186 −0.08 0.59 −0.14 252.80 .888
Time x SIV 1.30 1.11 1.17 1090.20 .242 1.09 0.49 2.23 1122.98 .026
Time x Dx −2.47 1.29 −1.92 1116.99 .056 −1.32 0.56 −2.33 1157.11 .020
SIV x Dx 0.87 0.73 1.20 987.97 .231 0.37 0.32 1.14 1029.44 .253

Note. SIV = self-induced vomiting (coded 0 for absent and 1 for present); Dx = diagnosis (coded 0 for anorexia nervosa and 1 for bulimia nervosa); significance evaluated at a p-value of .05, represented by bolded type.