Clinical Vignette
Patient: "Mr. Z," 50-year-old factory supervisor, presenting 3 weeks after being laid off from his position of 22 years.
Chief Concern: "I've been in a dark place since I lost my job. I feel worthless, I can't sleep, and I don't see how things will get better. My wife sent me here."
History of Present Illness: Mr. Z was laid off 3 weeks ago from a factory where he had worked for 22 years. He describes the layoff as 'devastating' and 'unexpected.' Since the layoff, he reports: depressed mood most of the day, initial insomnia (takes 2-3 hours to fall asleep due to worry about finances), diminished appetite (skipping meals but no significant weight loss), worry about the future, difficulty concentrating when looking at job postings, social withdrawal (declining friends' invitations), and a pervasive feeling of worthlessness ('22 years and they threw me away like nothing'). He denies suicidal ideation, psychomotor retardation, and anhedonia (he still enjoys watching his grandchildren and his morning coffee). He reports his mood lifts when his wife is supportive or when he receives a job lead. His symptoms are directly linked to the layoff: all distress revolves around employment loss, financial concerns, and identity as a worker. No prior psychiatric history. Premorbid functioning was excellent.
Past Psychiatric History: No prior psychiatric treatment. No mood or anxiety history.
Family History: No significant psychiatric history.
Mental Status Exam: Casually dressed (unusual for someone described as 'always professional'). Cooperative. Speech normal but subdued. Mood 'low.' Affect sad but reactive (brightens when discussing grandchildren). No psychomotor retardation. Thought process linear. Content: stressor-focused (job loss, finances, identity). No suicidal ideation. No psychotic symptoms. Cognition intact. Insight good.
Step 1: Assessing for Major Depressive Episode
To determine whether Mr. Z meets criteria for MDD or Adjustment Disorder, we first evaluate MDE criteria:
(1) Depressed mood most of the day, nearly every day
Depressed mood present most of the day since the layoff. PRESENT.
(2) Markedly diminished interest or pleasure
Denies anhedonia: still enjoys grandchildren, morning coffee. Interest is reduced but not markedly diminished. NOT MET — mood is reactive and pleasure-capacity preserved.
(3) Weight loss or appetite change
Diminished appetite, skipping meals, but no significant weight loss. BORDERLINE.
(4) Insomnia
Initial insomnia: 2-3 hours to fall asleep due to rumination about finances. PRESENT.
(5) Psychomotor changes
No psychomotor retardation or agitation observed. NOT MET.
(6) Fatigue
Reports low energy but this is proportional to poor sleep. BORDERLINE.
(7) Worthlessness or guilt
Feels 'thrown away,' questions self-worth as a worker. This appears proportional to the actual loss rather than pervasive/delusional. BORDERLINE — proportional to stressor.
(8) Concentration difficulty
Difficulty concentrating on job postings. Concentration intact for other activities. PRESENT but domain-specific.
(9) Suicidal ideation
Denied. NOT MET.
MDE Assessment: 2 clear criteria (depressed mood, insomnia), 3 borderline, 4 not met. Does not reach the 5/9 threshold.
Full MDE criteria NOT met. MDE NOT MET.
Step 2: Adjustment Disorder Assessment
Because MDE criteria are not met, Adjustment Disorder should be considered:
Criterion A: Emotional or behavioral symptoms develop within 3 months of an identifiable stressor.
Symptoms developed within 3 weeks of job loss (identifiable stressor). MET.
Criterion B: Symptoms are clinically significant as evidenced by: (1) distress out of proportion to the severity of the stressor, or (2) significant impairment in social, occupational, or other areas.
The distress appears proportional to a 22-year job loss (not obviously disproportionate), but there is functional impairment: social withdrawal, difficulty pursuing job applications, and disrupted sleep impacting daily functioning. MET via functional impairment (B2).
Criterion C: Does not meet criteria for another mental disorder.
MDE criteria not met (assessed above). GAD criteria not met (worry is stressor-specific). PTSD criteria not met (layoff is not a Criterion A trauma). MET.
Criterion D: Not normal bereavement.
Not bereavement-related. MET.
Criterion E: Once the stressor is resolved, symptoms do not persist for more than an additional 6 months.
Cannot yet be assessed (stressor ongoing — still unemployed). This criterion is evaluated retrospectively. CANNOT YET BE ASSESSED.
Subtype: With depressed mood (predominant mood is sadness, tearfulness, hopelessness).
Depressed mood is the predominant feature. WITH DEPRESSED MOOD SUBTYPE.
Step 3: Comparison Table
| Feature | Adjustment Disorder | Major Depressive Disorder | This Patient |
|---|---|---|---|
| Stressor required? | Yes (identifiable stressor within 3 months) | No (can occur without stressor) | AD: clear stressor identified |
| Symptom count threshold | No specific count required | ≥5/9 criteria required | AD: below MDE threshold |
| Mood reactivity | Often preserved | Often absent (especially melancholic) | AD: mood reactive to positive events |
| Anhedonia | Typically absent | Core feature | AD: anhedonia absent |
| Functional impairment | Present but often domain-specific | Pervasive | AD: impairment in employment domain primarily |
| Course | Resolves when stressor resolves | May persist independent of stressor | Pending: stressor ongoing |
Diagnostic Decision
Mr. Z does not meet the 5/9 symptom threshold for MDE. His mood is reactive, anhedonia is absent, and his distress is proportional to and thematically linked to an identifiable stressor. Adjustment Disorder with Depressed Mood is the appropriate diagnosis.
Diagnostic Formulation
Diagnostic Conclusion
Adjustment Disorder, with Depressed Mood (F43.21): Identifiable stressor (job loss) within 3 months. Emotional symptoms (depressed mood, insomnia, concentration difficulty, withdrawal) present but below MDE threshold. Functional impairment in employment seeking and social domains. Mood reactive with preserved anhedonia function. If symptoms worsen to meet full MDE criteria, the diagnosis should be changed to MDD. If symptoms persist >6 months after stressor resolution (re-employment or acceptance), the diagnosis should be reassessed.
Teaching Points
- Adjustment Disorder is a 'subthreshold' diagnosis: it is used when a stressor produces clinically significant symptoms that do not meet full criteria for MDD, GAD, PTSD, or any other specific disorder. If full criteria for another disorder are met, that disorder takes precedence.
- Mood reactivity (mood improves in response to positive events or news) is a clinical indicator that often distinguishes AD from MDD. In MDD (particularly melancholic), mood is non-reactive. In AD, mood fluctuates with environmental context.
- The absence of anhedonia is diagnostically significant. Anhedonia (inability to experience pleasure) is a core feature of MDE and its absence, when a patient still enjoys some activities, often points toward Adjustment Disorder rather than MDD.
- Adjustment Disorder can worsen into MDD. A patient initially presenting with subthreshold symptoms may develop full MDE criteria over time. Follow-up assessment at 4-6 weeks is recommended to track symptom trajectory.
- Treatment for Adjustment Disorder emphasizes psychotherapy (supportive therapy, problem-solving therapy, brief CBT focused on the stressor) over pharmacotherapy. Medications may be considered for symptomatic relief (short-term sleep aids for insomnia, for example) but are not typically first-line.