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Depression and hypothalamic-pituitary-adrenal activation: a quantitative summary of four decades of research
Stetler C, Miller GE.. Psychosomatic medicine, 2011-01-21
Topic: Risk, prevention and care in population studies
Objectives To summarize quantitatively the literature comparing hypothalamic-pituitary-adrenal (HPA) axis function between depressed and nondepressed individuals and to describe the important sources of variability in this literature. These sources include methodological differences between studies, as well as demographic or clinical differences between depressed samples. Methods The current study used meta-analytic techniques to compare 671 effect sizes (cortisol, adrenocorticotropic hormone, or corticotropin-releasing hormone) across 361 studies, including 18,454 individuals. Results Although depressed individuals tended to display increased cortisol (d = 0.60; 95% confidence interval [CI], 0.54-0.66) and adrenocorticotropic hormone levels (d = 0.28; 95% CI, 0.16-0.41), they did not display elevations in corticotropin-releasing hormone (d = 0.02; 95% CI, -0.47-0.51). The magnitude of the cortisol effect was reduced by almost half (d = 0.33; 95% CI, 0.21-0.45) when analyses were limited to studies that met minimal methodological standards. Gender did not significantly modify any HPA outcome. Studies that included older hospitalized individuals reported significantly greater cortisol differences between depressed and nondepressed groups compared with studies with younger outpatient samples. Important cortisol differences also emerged for atypical, endogenous, melancholic, and psychotic forms of depression. Conclusions The current study suggests that the degree of HPA hyperactivity can vary considerably across patient groups. Results are consistent with HPA hyperactivity as a link between depression and increased risk for conditions, such as diabetes, dementia, coronary heart disease, and osteoporosis. Such a link is strongest among older inpatients who display melancholic or psychotic features of depression.
Key findings
- Results Although depressed individuals tended to display increased cortisol (d = 0.60; 95% confidence interval [CI], 0.54-0.66) and adrenocorticotropic hormone levels (d = 0.28; 95% CI, 0.16-0.41), they did not display elevations in corticotropin-releasing hormone (d = 0.02; 95% CI, -0.47-0.51).
- Gender did not significantly modify any HPA outcome.
- Studies that included older hospitalized individuals reported significantly greater cortisol differences between depressed and nondepressed groups compared with studies with younger outpatient samples.
- Conclusions The current study suggests that the degree of HPA hyperactivity can vary considerably across patient groups.
- Results are consistent with HPA hyperactivity as a link between depression and increased risk for conditions, such as diabetes, dementia, coronary heart disease, and osteoporosis.
Why it matters
This analysis of 361 studies found that depressed people tended to have higher cortisol and adrenocorticotropic hormone levels, but not higher corticotropin-releasing hormone. It does not test any treatment, cure, or prevention for Alzheimer's disease.
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Study details
- Participants18,454
- Evidence strengthLow
How this study scored 70/100
Published in a peer-reviewed journal, and it is a meta-analysis pooling many studies. Scored zero for effect reported because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Psychosomatic medicine) |
| Journal's citation record | 3 / 4 | Psychosomatic Medicine: journal h-index 293 (OpenAlex, 2026-10-29) |
| Study design | 12 / 12 | A meta-analysis pooling many studies (from PubMed type “Meta-Analysis”) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 2011 — within 20 year(s) of the newest study here |
| Sample size | 4 / 4 | 18,454 participants |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 3 / 3 | Studied in people (participant count stated) |
| Randomised / blinded | 0 / 2 | A review of other studies — randomisation is not credited here |
| Times cited | 7 / 7 | Cited 1,120 times (OpenAlex, 2026-10-10) |
| Citations per year | 5 / 5 | 65.9 citations a year over 17 year(s) since 2011 |
| Impact for its field and year | 5 / 6 | Cited 20.1× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 2 / 6 | Cited by 4 other studies in this library |
| Still being cited | 3 / 4 | Cited 169 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 3 / 4 | Last-listed author Gregory E. Miller: h-index 95 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | University of British Columbia: institution h-index 1,424 (OpenAlex) |
| Multi-centre collaboration | 1 / 3 | OpenAlex lists 2 institution(s) in 2 countries |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 21257974) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Total | 70 / 100 | — |
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Cite this study APA, Vancouver, BibTeX · download .bib or .ris
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
APA 7th
Stetler, C., & Miller, G. E. (2011). Depression and hypothalamic-pituitary-adrenal activation: a quantitative summary of four decades of research. Psychosomatic medicine. https://doi.org/10.1097/psy.0b013e31820ad12b
Vancouver
Stetler C, Miller GE. Depression and hypothalamic-pituitary-adrenal activation: a quantitative summary of four decades of research. Psychosomatic medicine. 2011. doi:10.1097/psy.0b013e31820ad12b. PMID: 21257974.
BibTeX
@article{stetler2011-21257974,
author = {Stetler, C. and Miller, G. E.},
title = {{Depression and hypothalamic-pituitary-adrenal activation: a quantitative summary of four decades of research}},
journal = {Psychosomatic medicine},
year = {2011},
doi = {10.1097/psy.0b013e31820ad12b},
pmid = {21257974},
url = {https://doi.org/10.1097/psy.0b013e31820ad12b}
}
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