Several studies describe that the coexistence of a substance use disorder with another psychiatric condition or “dual disorder” (DD) is associated with a worse evolution at all levels, including a greater burden of medical illnesses and greater mortality.

To describe the presence of DD and related factors in patients admitted to a General Hospital that required assessment by a psychiatry service.

A descriptive study that includes patients admitted to the Hospital del Mar in Barcelona for all medical-surgical reasons and attended by the specific addiction psychiatry consultation service between January 2016 and October 2021. Sociodemographic and clinical data are collected including the history of consumption and the diagnosis of dual disorder. Chi-square test was used for comparison between groups.

The sample was 1796 patients (Women: 345. Mean age: 50.3 years; SD: 12.6). 43.7% of the sample presented DD, with axis 1 disorders being the most frequent. There was an association of DD to factors as: being woman (54 vs 41.2% p <0.001), HIV positive serologies (54 vs 42.7% p <0.001), being homeless (49 vs 31.7% p <0.001) and cocaine consumption compared to other substances (53.4 vs 39.8% p <0.001).

In our sample, almost half of patients had DD. The representation of women was significantly lower, however they presented a higher proportion of DD. In this study we describe an association of DD with other biopsychosocial problems, and further studies are necessary to determine in which sense they are related and optimize patient care.

No significant relationships.

Since the beginning of the pandemic, 4,745,519 cases, 396,878 hospitalizations and 82,884 deaths with COVID-19 have been reported in Spain. As of August 24, 2021, 76.4% of Andalusians over 12 years of age have the complete vaccination regimen.

Main: to calculate the prevalence of COVID 19 infection, clinical evolution, and vaccination rate in a population of patients diagnosed with dual bipolar disorder. Secondary: compare these data with those obtained inpatients diagnosed with non-dual bipolar disorder.

Retrospective descriptive study. The study population is made up of patients diagnosed with dual bipolar disorder and non-dual bipolar disorder (according to DSM 5 criteria). Infection, admission, death, and vaccination data were obtained from the patient’s medical history.

Of the 7 patients diagnosed with dual bipolar disorder, the prevalence of COVID 19 infection, since the beginning of the pandemic is 0% and of the 21 patients diagnosed with non-dual bipolar disorder the prevalence is 9.51% (2/21). Of the patients with COVID 19 infection, none required hospital admission and no deaths occurred. The vaccination rate in the group of patients with dual bipolar disorder is 85,71% (6/7) and in the group of non-dual bipolar disorder is 61.91% (13/21), no finding statistically significant differences between both groups.

In our study the prevalence of COVID 19 infection inpatients diagnosed with dual bipolar disorder is 0% and the vaccination rate is 85.71%. While in patients with non-dual bipolar disorder the prevalence is 9.51%, there were no admissions, no deaths and the vaccination rate is 61.91%.

No significant relationships.

While it is well known that there is an interaction between sleep disorders and substance abuse, it is certainly more complex than was previously thought. The effects on sleep depend on the substance used, but it has been shown that both during use and in withdrawal periods consumers have various sleep problems, and basically more fragmented sleep. We know that sleep problems must be taken into account to prevent addiction relapses.

To explain the different sleep disorders caused by substances such as alcohol and cannabis

As an example of this, two cases are introduced: the first one, a 17-year-old boy, who is diagnosed with ADHD with daily cannabis use since the age of 14. As a result of reducing consumption, he presents an episode of sleep paralysis that he had not previously had. The second one is a 50-year-old man diagnosed with a personality disorder and with dependence on cannabis and alcohol for years. He currently has abstinence from alcohol for months and maintains daily cannabis use. However, he has long-standing sleep pattern disturbances and frequent depersonalization phenomena at night.

Alcohol at low doses has no clear effects on sleep architecture. At higher doses it decreases sleep latency, as well as awakenings. In chronic alcoholic patients, a decrease in deep slow sleep, and more fragmented sleep have been found. Cannabis withdrawal reduces sleep quality, increases latency, and produces strange dreams.

There is a positive relationship both between having a substance use disorder and suffering from a sleep disorder.

No significant relationships.