LAUSR

ABSTRACT Background: Filipino migrant workers in Macao are vulnerable to posttraumatic stress disorder (PTSD) symptoms and addictive behaviours due to trauma histories, postmigration stressors, and access to alcohol and gambling venues. While PTSD addiction comorbidity is well-established in the existing literature, such research among migrant workers is lacking. Objective: The current study investigated differential relations between PTSD symptoms and addictive behaviours in a polytrauma exposed sample of Filipino domestic workers in Macao (SAR), China. Methods: Data were collected from 1375 Filipino migrant workers; data from a subsample of 1200 participants who reported an index traumatic event and PTSD symptoms were used in the analyses. Participants responded to the PTSD Checklist for DSM-5, gambling disorder symptoms checklist from DSM-5, and The Alcohol Use Disorders Identification Test. We estimated a regularized partial correlation network structure of PTSD symptoms and addictive behaviours employing graphical LASSO and extended Bayesian information criterion. Results: PTSD symptoms of arousal and negative emotions had bridge connections with gambling disorder symptoms; while PTSD symptoms of arousal, restricted affect, negative emotions, and emotional reactivity had bridge connections with alcohol misuse. Conclusions: PTSD's arousal and negative emotion symptoms were common in the networks of PTSD and addictive behaviours, while PTSD's restricted affect and emotional reactivity symptoms were unique to the network of PTSD and alcohol misuse. Treatment of the comorbidity of PTSD and addictive behaviours may yield optimal effects when tailored to these symptoms. HIGHLIGHTS A network analytic study was conducted to explore patterns of comorbidity among international migrants. Post-traumatic stress disorder symptoms are associated with addiction symptoms among female Filipino migrant workers in Macau. Negative emotions symptoms of post-traumatic stress disorder are associated with both gambling disorder and alcohol misuse. Restricted affect and emotional reactivity are associated with alcohol misuse only.