Objectives: 
This study examined the 12-month prevalence and clinical and socio-demographic factors associated with Substance Use Disorders among in-patients at the Mental Health Unit, Moi Teaching & Referral Hospital, Eldoret Kenya.
 
Background: 
Substance use disorders are often under-diagnosed and under-treated among psychiatric in-patients, yet are frequent and associated with adverse outcomes. 

Materials & Methods: 
This was a cross-sectional study. One hundred and thirty one consenting adult in-patients consecutively discharged from the unit between March 2015 and February 2016 were interviewed. The Mini International Neuropsychiatric Interview Version 7.0 for DSM-5 was used in assessing for substance use disorder and other mental disorder diagnoses. A researcher designed questionnaire was used to collect socio-demographic and clinical data. Descriptive statistics were used to explore the data while inferential statistics used to assess associations.

Results: 
The mean age for the respondents was 34.5 years (SD=12.20 years). Close to half (49.6%) of the participants had at least one substance use disorder diagnosis. Being male (p=0.001), number of suicide attempts (p=0.020) and having a higher level of education (p=0.040) were associated with a substance use disorder diagnosis. Cannabis use disorder was associated with suicidality (p=0.001); with anxiety disorder (p=0.002); and with antisocial personality disorder (p=0.024). 

Conclusion:
A large proportion of patients admitted to the unit met criteria for a 12-month substance use disorder. These findings provide justification for routine screening for substance use disorders and for the inclusion of substance use disorder care in the management of in-patients at the unit.

SUBSTANCE USE DISORDERS AMONG ADULT IN-PATIENTS AT THE MENTAL HEALTH UNIT, MOI TEACHING AND REFERRAL HOSPITAL, ELDORET, KENYA