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The Hamilton Anxiety Scale: reliability, validity and sensitivity to change in anxiety and depressive disorders
Abstract
The Hamilton Anxiety Scale (HAM-A) was tested for reliability and validity in two different samples, one sample (n = 97) defined by anxiety disorders, the other sample (n = 101) defined by depressive disorders. The reliability and the concurrent validity of the HAM-A and its subscales proved to be sufficient. Internal validity tested by latent structure analysis was insufficient. The major problems with the HAM-A are that (1) anxiolytic and antidepressant effects cannot be clearly distinguished; (2) the subscale of somatic anxiety is strongly related to somatic side effects. The applicability of the HAM-A in anxiolytic treatment studies is therefore limited. More specific anxiety scales are needed.
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“Each item is scored on a Likert scale ranging from 0 (not present) to 4 (severe).”
In the citing paper
“A total score of <17 indicates mild severity, 18–24 denotes mild to moderate severity, 25–30 indicates moderate to severe, and >30 indicates severe (44).”
In the citing paper
“It consists of 14 items which assess 14 anxiety symptoms.”
In the citing paper
“The HAM-A is an observer-administered instrument to assess the severity of anxiety symptoms.”
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“These included depression (evaluated using the Patient Health Questionnaire-9, PHQ-9) [23], anxiety (measured with the Hamilton Anxiety Scale, HAMA) [24], hypomania (Hypomania Checklist-32, HCL-32) [25], mania (Mood Disorder Questionnaire, MDQ; and Young Mania Rating Scale, YMRS) [26, 27],…”
Sahoo, A., Samantray, S., Mohapatra, D., & Sahoo, S. (2026) · Indian Journal of Psychiatry · doi:10.4103/indianjpsychiatry_788_24
“The Hamilton anxiety scale (HAM-A), [15] The Hamilton rating scale for depression (HAM-D), [16] brief psychiatric rating scale (BRPS) [17] and young Mania rating scale (YMRS) [18] were applied accordingly depending on the psychiatric symptoms.”
Putzolu, M., Sarasso, E., Canu, E., Terranova, S., Botta, A., Mezzarobba, S., Filippi, M., Agosta, F., Avanzino, L., & Pelosin, E. (2026) · Frontiers in Neurology · doi:10.3389/fneur.2026.1727828
Guo, D., Huang, Y., Ran, M., Li, H., Tan, C., Zhao, W., & Wang, Z. (2026) · European journal of medical research · doi:10.1186/s40001-026-04243-w
Yavuz, Z., Önder, H., Ülker, A. C., & Çomoğlu, S. S. (2026) · Asian Journal of Neurosurgery · doi:10.1055/s-0046-1819607
Wang, N., & Tu, Q. (2026) · BMC Geriatrics · doi:10.1186/s12877-026-07396-9
“The Hamilton Anxiety Scale (HAMA) [28] was used to assess anxiety.”
Ponchel, A. (2016) · theses.fr (ABES) · doi:10.70675/2efa91a7zb34dz4171zb8d6z03624ba9000c
“Cette échelle a de bonnes caractéristiques psychométriques (217).”
Zhou, Y., Han, Z., Yang, N., Li, M., Xie, M., Zhang, C., Wang, S., Gao, Y., & Li, J. (2026) · European Archives of Psychiatry and Clinical Neuroscience · doi:10.1007/s00406-026-02218-w
Deep learning approaches for neurological disorders detection based on brain activity analysis
Baghdadi, A. (2021) · theses.fr (ABES) · doi:10.70675/f319c358z1e45z4f1czb9a1zdb01b791aff3
Dudek, D., Chrobak, A. A., Podkowa, K., Krupa, A. J., Gorostowicz, A., Jaeschke, R. R., Juryk, A., & Siwek, M. (2026) · Frontiers in Pharmacology · doi:10.3389/fphar.2026.1739359
“…which captures both psychic and somatic symptoms of anxiety; and sleep disturbances, assessed via the AIS, a self-report tool evaluating sleep quality and insomnia symptoms (Hamilton, 1959; Maier et al., 1988; Snaith et al., 1995; Soldatos et al., 2003; Mateen et al., 2017; Trøstheim et al., 2020).”
Xing, Y., He, X., Song, Y., & Chen, N. (2026) · BMC Geriatrics · doi:10.1186/s12877-026-07464-0
“The Hamilton Anxiety Rating Scale (HAMA) is a widely recognised and standardised assessment tool utilised to evaluate the severity of anxiety symptoms [50].”
Zhang, X., Wang, Z., Sun, M., Bao, Q., Chen, Z., Liu, Y., Wang, Z., Ye, F., Yang, Z., Du, X., et al. (2026) · PLoS ONE · doi:10.1371/journal.pone.0346717
“…will be measured using the word recall and word recognition improvement tasks of ADAS-Cog scales at the12 th , 24 th , 36 th , 48 th , and 60 th weeks; (3) The emotional disorders will be measured using the HAMD and HAMA scales [36,37] at the 12 th , 24 th , 36 th , 48 th , and 60 th weeks.”
Ma, Z.-J., Zou, T., Zhou, Y.-S., Li, X., Hu, Z., Liu, G.-X., Xia, L., & Chen, G.-H. (2026) · Discover Mental Health · doi:10.1007/s44192-026-00467-8 · Cited by 1
“The severity of anxiety symptoms was assessed using the 14 item-Hamilton Anxiety Scale (HAMA-14), which includes a set of symptoms [26].”
Wang, X., Jiang, W., & Yuan, Y. (2026) · General Hospital Psychiatry · doi:10.1016/j.genhosppsych.2026.04.014
Zgarbură, R., Pavel, A. N., Parlițeanu, O.-A., Sabri, J., & Tudose, C. (2026) · Healthcare · doi:10.3390/healthcare14091242
“Cronbach’s alpha for HAMA at baseline was 0.642, slightly lower than reported in the literature [33].”
InfluentialImpact of Noise Levels of the Dialysis Machine Alarm on Patient Anxiety
Bera, B., & Hemanth, P. (2026) · Hemodialysis International · doi:10.1111/hdi.70080
“HAM-A score of 8–14 indicates mild anxiety, 15–23 indicates moderate anxiety, ≥ 24 indicates severe anxiety, and Scores ≤ 7 indicate minimal or no anxiety [15].”
Metadata
- Authors
- Maier, W., Buller, R., Philipp, M., & Heuser, I.
- Affiliations
- Johannes Gutenberg University Mainz (DE)
- Corresponding author
- Maier, Wolfgang
- Venue
- Journal of Affective Disorders
- Publisher
- Elsevier BV
- Published
- 1988-01
- Volume
- 14
- Issue
- 1
- Pages
- 61-68
- ISSN
- 0165-0327 (ISSN-L)
- OpenAlex
- W2021803359
- Cited by
- 1,044
- References
- 15
- Citations by year
- 2026: 102 · 2025: 132 · 2024: 122 · 2023: 77 · 2022: 81 · 2021: 73 · 2020: 74 · 2019: 56 · 2018: 47 · 2017: 49 · 2016: 45 · 2015: 29 · 2014: 27 · 2013: 22 · 2012: 12
- FWCI
- 4.75
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Affective Disorders (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
- Social Sciences › Psychology › Applied Psychology › Psychological Testing and Assessment
- Keywords
- Hamilton Anxiety Rating Scale, anxiety disorders, depressive disorders, psychometric validation, reliability statistics, concurrent validity, internal validity, latent structure analysis, anxiolytic treatment, antidepressant effects, sensitivity to change
- MeSH terms
- Agoraphobia, Alprazolam, Amitriptyline, Anxiety Disorders, Clinical Trials as Topic, Depressive Disorder, Humans, Imipramine, Panic, Psychological Tests, Psychometrics, Random Allocation
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