Decades of research and documentation show the relationship between alcohol/substance use disorder (AUD/SUD) and mental health disorders such as anxiety, post-traumatic stress disorder (PTSD), bipolar disorder, and depression. When an individual receives a diagnosis for more than one mental health disorder, clinicians use the terms co-occurring disorders or dual diagnosis. Both these phrases mean exactly what they sound like. Co-occurring disorders means that two disorders occur in one individual at the same time, and dual diagnosis means one individual has received a diagnosis for two different disorders.
Data from the National Institute on Drug Abuse (NIDA) published in 2017 show the following:
- 42.1 million adults in the U.S. had a mental health disorder
- 18.2% of adults with a mental health disorder also had SUD
- 20.3 million adults in the U.S. had a substance use disorder
- 37.9% of adults with SUD also had a mental health disorder
- 7.7 million adults in the U.S. had co-occurring SUD and mental health disorder
The mental health disorders that most commonly co-occur with SUD are:
- Major depressive disorder (MDE)
- Bipolar disorder
- Post-traumatic stress disorder
Additional research shows that people with depression are twice as likely to develop SUD than people with no depression, and people with bipolar disorder are seven times as likely to develop SUD than people without bipolar disorder.
This article discusses a recent study published by researchers at Boston University that asked a question many people around the country – both clinicians and regular citizens alike – are curious about:
Has COVID caused an increase in depression in people in the U.S.?
What we mean, of course, is not COVID itself, but COVID lockdown and everything associated with it, such as isolation, social distance, income insecurity, and anxiety about schools reopening – to name a few.
COVID and Depression: The Results
The research team at Boston University took their cue from studies in China that showed a fifty percent increase in depressive symptoms among healthcare workers, increased levels of anxiety among medical students, and increased levels of anxiety and stress related to loss of sleep during the height of the coronavirus pandemic.
They suspected similar trends in the U.S. and designed a study to assess the situation and confirm or deny their suspicions. They used two surveys designed to accurately reflect the U.S. population: before COVID data comes from the National Health and Nutrition Examination Survey (NHANES), while after COVID data comes from the AmeriSpeak panel. In total, they analyzed data from over five thousand people before the coronavirus pandemic and over fourteen hundred people after the pandemic began.
Here’s what they found:
- 8.5% of participants had depressive symptoms before COVID
- 10.1% of women
- 6.9% of men
- 27.8% of participants had depressive symptoms after COVID
- 33.3% of women
- 21.9% of men
As we can see, those differences are not small. Overall prevalence increased about three times – and that increase was roughly the same for both women and men. Researchers also analyzed rates of depression as related to household savings. Here’s what they found:
- 19.3 % of People in households with more than $5,000 in savings reported depressive symptoms
- 40.4% of people in households with less than $5,000 in savings reported depressive symptoms
That’s also significant. More than twice as many people from households with less than $5,000 in savings reported depressive symptoms, compared to people from households with over $5,000 in savings.
Finally, researchers analyzed the before/after COVID data by severity of depressive symptoms. Here’s what they found:
- Mild symptoms: 52% increase
- Moderate symptoms: 160% increase
- Moderately severe symptoms: 276% increase
- Severe symptoms: 628% increase
That’s another important set of data. People with mild depressive symptoms experienced the smallest increase in symptoms, while people with severe symptoms experienced the largest increase in symptoms. In plain language, that means that for people with depression, those with the most severe cases were hit the hardest by COVID.
What This Means For Us
We know that people with mental health disorders experience alcohol and substance use disorders at a greater rate than people without mental health disorders. We also know that people with mood disorders, such as depression, experience co-occurring SUD at greater rates than people with anxiety disorders, such as PTSD. This new data from Boston University offers evidence to support what most people in the U.S. thought might be true. Rates of depression and depressive symptoms measured after the coronavirus pandemic began are greater than rates of depression and depressive symptoms measured before the coronavirus pandemic began.
What this means for us is that we need to pay closer attention to our patients with co-occurring SUD and depression. We were already doing that, because it seemed logical to do so. Now we have evidence to show us our instincts were on track. This also means, for us, that we may see an increase in SUD correlated to an increase in severe depressive symptoms, as related to the coronavirus pandemic. This potential increase in SUD prevalence means that, as the pandemic continues, we may see an increase in people seeking treatment and support. With the knowledge gained from this study, we can ask questions in our initial assessments about COVID and preexisting depression. This will help us design a custom treatment program based on specific biopsychosocial needs.
What This Means For You
What this means for you is that if a friend or a loved one has depression, their symptoms may have increased over the past six months. The data tells us that people with severe depression experienced the greatest increase in symptoms. Therefore, if you know someone with severe depression, check in on them. Watch for signs of increased or increasing alcohol or substance use. And if it’s appropriate, offer them any support you can. If you have friends with mild depression, the same is true. Check on them and keep your eyes open for signs of increased or increasing alcohol or substance use. Their depression may have increased in severity, which may have, in turn, led to self-medication and disordered use, a.k.a. addiction.
The same goes for you, yourself. If you have depression and your symptoms have increased in severity since the beginning of the pandemic, have you also increased your alcohol or substance use in order to mitigate the increase in symptoms? If the answer is yes, then we recommend discussing your situation with a therapist. Be honest. Be prudent. And be careful with yourself. A trained mental health professional can help you work through your symptoms and help prevent you from developing a co-occurring alcohol or substance use disorder.