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. Author manuscript; available in PMC: 2015 Jun 13.
Published in final edited form as: J Consult Clin Psychol. 2012 Dec 17;81(2):284–298. doi: 10.1037/a0030814

Table 2.

Main Effects and Gender × Group Interaction Effects Analysis for Study Outcomes Using Hierarchical Linear Models

Outcome Group coefficienta t ratio df p Gender × Group coefficientb t ratio df p
PTSD total score −0.53 −0.95 239 .35 −2.26 −2.09 237 .038
HAM–D −0.03 −0.18 233 .86 −1.19 −3.26 232 .002
HIV symptoms −0.12 −1.19 239 .24 −0.06 −2.31 237 .022
CD4 cells −1.03 −0.19 234 .85 0.13 0.24 234 .811
HIV viral load log10 0.08 1.79 234 .07 −0.06 −0.77 234 .444

Note. PTSD = Posttraumatic Stress Disorder Scale; HAM–D = Hamilton Depression Scale; HIV symptoms = HIV symptom checklist.

a

A negative coefficient indicates the trauma group had a greater decrease over time than the control writing group.

b

A negative coefficient indicates that women in trauma had a greater decrease over time (slope) that the three other groups.