DSM-IV to DSM-5 Dysthymic Disorder Comparison. Substance Abuse and Mental Health Services Administration.
Rockville (MD): Substance Abuse and Mental Health Services Administration (US); 2016 Jun. https://www.ncbi.nlm.nih.gov/books/NBK519704/table/ch3.t6/

DSM-IV to DSM-5 Dysthymic Disorder Comparison

Persistent Depressive Disorder (PDD), formerly known as dysthymia, is a chronic form of depression diagnosed when an individual experiences a depressed mood for most of the day, on more days than not, for a minimum of two years. In addition to the persistent low mood, a diagnosis requires at least two other symptoms of major depressive disorder. Individuals with PDD are chronically sad and melancholic, but their symptoms do not meet the full criteria for a major depressive episode. However, it is possible for someone with PDD to also experience periods of full-blown major depressive disorder.

Persistent Depressive Disorder

Reference for an overview of Persistent Depressive Disorder (Dysthymia)

Read the clinical vignette below. Based on the symptoms described, identify the most likely diagnosis and provide a justification for your choice, citing specific evidence from the text.

Clinical Vignette Analysis

Persistent depressive disorder, also known as dysthymia, is a depressive disorder identified by a long-term, chronic state of sadness.

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This list includes disorders or conditions that are related to depressive states or features but are not currently directly or officially included in the DSM. These disorders include:
-	Climate Grief
-	Depressive Personality Disorder
-	Double Depression
-	Minor Depression
-	Postpartum Depression
-	Recurrent Brief Depression
-	Seasonal Affective Disorder (SAD)

List of Other Recognized Depressive Disorders

The DSM-5-TR separates Depressive Disorders into the following specific disorders: 
- Disruptive Mood Dysregulation Disorder
- Major Depressive Disorder (MDD)
- Persistent Depressive Disorder (Dysthymia)
- Premenstrual Dysphoric Disorder
- Substance / Medication-Induced Depressive Disorder
- Depressive Disorder Due to Another Medical Condition
- Other Specified Depressive Disorder
- Unspecified Depressive Disorder
- Unspecified Mood Disorder
- Specifiers for Depressive Disorders


[DSM-5-TR] List of Depressive Disorders 

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

- A period of depression brought on by the short days of wintertime
- Sometimes the winter depression alternates with summertime mania
- Symptoms in the wintertime include: depressed, sleepy, slow, and overeating
- In summertime, those affected by SAD experience are more energetic, active, and become thinner
- Predominantly in women and starts in early adulthood

Seasonal Affective Disorder

Postpartum depression can occur directly after childbirth due to a combination of hormones that can induce depression. 1 in 5-8 women experience postpartum depression symptoms.

Postpartum Depression

Although not classified as a specific disorder, some researchers have begun to see that global warming is causing mental health problems for many people, especially those most affected by environmental destruction. This idea has been referred to as "climate grief." Climate grief most often manifests as some form of depression or anxiety.

Climate Grief

Generally speaking, depression is an overall feeling of sadness. More specifically, those with depression tend to experience several things such as: an increase or decrease in weight, troubles with concentration, feelings of meaninglessness or worthlessness, thoughts of death or suicide, and so on. 

Depression

Double depression is a term used for the co-occurrence of persistent depressive disorder and major depressive disorder. It consists of the symptoms of both disorders, along with the intensification of the feelings of hopelessness and despair.

Double Depression

Disruptive Mood Dysregulation Disorder is primarily characterized by chronic, severe, and persistent irritability that manifests in temper outbursts and/or persistent irritable and angry moods amongst children and adolescents. These symptoms are present in a non-episodic format and are consistently present in the individual as opposed to going through episodic bouts of anger and irritability. 

Disruptive Mood Dysregulation Disorder

Major depressive disorder is a type of depressive disorder characterized by distinct episodes involving deep sadness and a loss of interest or enjoyment in previously pleasurable activities, among other related symptoms.

Major Depressive Disorder

Premenstrual Dysphoric Disorder or PMDD is categorized as a mood disorder. It is marked by a slew of symptoms that occur the week prior to the start of menses. Its existence as a disorder and its inclusion in the DSM is highly controversial. 

Premenstrual Dysphoric Disorder

A disorder that occurs when a specific substance causes depressed mood or markedly diminished interest or pleasure in all, or almost all, activities due to its physiological effects. 

Substance/Medication-Induced Depressive Disorder

Complications from pre-existing conditions like chronic illness can lead to the development of a Depressive Disorder Due to Another Medical Condition, which is a prominent and persistent period of low mood and interest. 

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