<b><i>Background:</i></b> In police officers, posttraumatic stress disorder (PTSD) is associated with alcohol use disorder (AUD), but we lack data on the association between PTSD and other substance-related and addictive disorders. <b><i>Objectives:</i></b> We assessed whether PTSD could be a risk factor for different substance-related and addictive disorders in police officers, including alcohol, tobacco, cannabis, and gambling. <b><i>Method:</i></b> This cross-sectional study included all police officers admitted consecutively for alcohol to an inpatient ward dedicated to police officers (Le Courbat rehabilitation center, France; <i>n</i>= 133). Each patient completed self-administered questionnaires that assessed lifetime exposure to potentially traumatic events (Life Event Checklist for DSM-5), PTSD severity and diagnosis (PTSD Checklist for DSM-5), AUD severity (Alcohol Use Disorder Identification Test [AUDIT]), tobacco dependence (Fagerström test for Nicotine Dependence), cannabis dependence (Cannabis Abuse Screening test), and gambling disorder (Canadian Problem Gambling Index). <b><i>Results:</i></b> Mean AUDIT score was 23.7 ± 8.0; 66.2% had an AUDIT score ≥20. Our sample comprised a high prevalence for PTSD (38.3%) and for substance-related and addictive disorders: tobacco dependence (68.4%), cannabis dependence (3.8%), and pathological gambling (3%). Patients with PTSD experienced higher lifetime exposure to traumatic experiences: physical assault, severe human suffering, sudden accidental death of another person, and other types of stressful events/experiences. In multiple linear regressions adjusted for age, sex, and marital status, PTSD was a significant predictor of the severity of AUD and tobacco use disorder, but not of the severity of cannabis use disorder nor gambling disorder. <b><i>Conclusions:</i></b> PTSD is common in police officers hospitalized for alcohol and associated with a higher severity of some addictive disorders (alcohol/tobacco). PTSD and its comorbid addictive disorders should be systematically screened and treated in this population.

Post-traumatic stress disorder (PTSD) is highly prevalent among patients hospitalized for an alcohol use disorder (AUD). Hospitalization can improve PTSD and AUD outcomes in some but not all patients, but we lack data on the baseline predictors of PTSD non-remission. This study aimed to determine the baseline risk factors for non-remitted PTSD in patients hospitalized for an AUD. Of 298 AUD inpatients recruited in a rehabilitation center (Le Courbat, France), we included 91 AUD inpatients with a co-occurring PTSD and a longitudinal assessment at baseline (T1) and before discharge (T2: 8 weeks later). Patients were assessed for PTSD diagnosis/severity (PCL-5=PTSD Checklist for DSM-5), different types of trauma including childhood trauma (LEC-5=Life Events Checklist for DSM-5/CTQ-SF=Childhood Trauma Questionnaire, Short-Form), and AUD diagnosis/severity (clinical interview/AUDIT=Alcohol Use Disorders Identification Test). Rate of PTSD remission between T1 and T2 was 74.1%. Non-remitted PTSD at T2 was associated with a history of childhood trauma (physical, emotional or sexual abuse, physical negligence), but not with other types of trauma experienced, nor baseline PTSD or AUD severity. Among patients hospitalized for an AUD with co-occurring PTSD, PTSD remission was more strongly related to the existence of childhood trauma than to AUD or PTSD severity at admission. These patients should be systematically screened for childhood trauma in order to tailor evidence-based interventions.