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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Sleep Med. 2017 Mar 18;34:141–147. doi: 10.1016/j.sleep.2017.02.024

Table 3.

Mediation models for PTSD and AUD symptoms

Mediator Model R2 Total direct effect Total indirect effect (mediation) Total effect (indirect + direct) Mediated proportion of total effect
β SE Ratio β SE Ratio β SE Ratio
Interpersonal PTE
PTSD symptoms 0.120 0.344 0.114 3.02 0.540 0.071 7.61 0.884 0.105 8.43 0.611
AUD symptoms 0.075 0.709 0.102 6.92 0.143 0.035 4.11 0.852 0.100 8.50 0.168
Correlated mediation 0.130 0.261 0.114 2.30 0.590 0.070 8.38 0.851 0.100 8.50 0.693
 PTSD symptoms - - - - 0.473 0.066 7.16 - - - 0.556
 AUD symptoms - - - - 0.117 0.033 3.51 - - - 0.138

Abbreviations: AUD = Alcohol use disorder, PTE = potentially traumatic event, PTSD=Posttraumatic stress disorder, n.s.=non-significant. The following p-values correspond to the ratio column (Z-score) of the table: 1.96 (p=0.05); 2.58 (p=0.01); 3.29 (p=0.001).