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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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“This is the first rating scale developed to measure the severity of anxiety symptoms and is still widely used today in both clinical and research settings.(24) The scale consists of 14 items, each defined by a series of symptoms, and measures both psychic anxiety (mental agitation and psychological distress) and somat…”
BackgroundMethodSchneider, H., Esbitt, S., & Gonzalez, J. S. (2012) · Springer eBooks · doi:10.1007/978-1-4419-1005-9_197 · Cited by 11
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“We administered the 17-item Hamilton Depression Rating Scale (HAM-D) (Hamilton, 1967), the 14-item Hamilton Anxiety Rating Scale (HAM-A) (Maier et al., 1988) and the Positive and Negative Syndrome Scale (PANSS) (Kay et al., 1987).”
Omaer, A., Albilali, A., Bamogaddam, R. F., Almutairi, F., Alsaif, R., Al-Mohammadi, O. S., & Alhifany, A. A. (2024) · Saudi Pharmaceutical Journal · doi:10.1016/j.jsps.2024.101989 · Cited by 10
“HARS is a 14-item questionnaire originally used to assess anxiolytic efficacy in patients with anxiety neurosis, measuring both psychic and somatic anxiety symptoms (Maier et al., 1988).”
BackgroundMethodYe, Z., Zhang, F., Cui, R., Ye, X., Tan, M., Tao, T., & Zhang, X. (2024) · BMC Psychology · doi:10.1186/s40359-024-02236-0 · Cited by 11
Rodríguez, A. D., Apprich, F., Friehs, M. A., van der Graaf, S., & Steinrücke, J. (2025) · Acta Psychologica · doi:10.1016/j.actpsy.2025.104925 · Cited by 18
“The HAM-A has demonstrated sufficient reliability and concurrent validity (Maier et al., 1988).”
Maggio, M. G., Bonanno, L., Rizzo, A., Barbera, M., Benenati, A., Impellizzeri, F., Corallo, F., Luca, R. D., Quartarone, A., & Calabrò, R. S. (2025) · Scientific Reports · doi:10.1038/s41598-025-08173-1 · Cited by 17
“For the MoCA, a change of ≥ 2 points has been suggested as clinically meaningful in stroke populations 46 ; for the HAM-D, a threshold of ≥ 3 points has been proposed 47 ; and for the HAM-A, ≥ 2 points is commonly adopted 48 .”
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Li, Q., Zhang, H., Lin, G., Shi, S., Zhang, Y., Jian-lin, J., Yang, L., Li, J., Li, X., Yao, J. P., et al. (2022) · Neuropsychiatric Disease and Treatment · doi:10.2147/ndt.s366048 · Cited by 11
“The psychic anxiety factor score was calculated based on items 1, 2, 3, 4, 5, 6 and 14 of the HAMA scale.(23,24) The fear symptom factor score, insomnia symptom factor score, memory symptom factor score, cardiovascular symptom factor score and gastrointestinal symptom factor score were the score of item 3, item 4, ite…”
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Propiedades Psicométricas de la Hamilton Anxiety Rating Scale (HARS) en Estudiantes Ecuatorianos
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“Prevalence of depression and anxiety by age The youngest two groups exhibited the highest scores on the HAMA and HAMD scales, indicating higher rates of anxiety and depression in younger PD patients, whereas the scores were negatively correlated with age in patients older than 60 years (Table 1).”
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Rating Scales for Anxiety Disorders
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“The HAMA has good internal consistency (Cronbach ’ s α = 0.74 – 0.92) and acceptable test – retest reliability (correlation coefficients 0.74 – 0.97) (Maier, Buller, Philipp, & Heuser, 1988).”
InfluentialWang, S., Chen, J., Wang, L., Liu, J., Wang, L., Sun, W., Li, S., & Li, J. (2025) · BMC Psychiatry · doi:10.1186/s12888-025-07158-8 · Cited by 9
“The scale is widely validated, including in Chinese psychiatric settings [41, 42].”
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“Patients were assessed at each visit with the following instruments: HAM-A [27, 28], beck depression inventory (BDI) [29], and penn state worry questionnaire (PSWQ) [30, 31].”
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“Each item is scored on the scale of 0 (not present) to 4 (severe), with a score range of 0–56 where less than 17 indicates mild severity, 18–24 mild‐moderate severity, and ≥25 moderate severe.[12]”
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“Anxiety symptoms were assessed by the Hamilton Anxiety Scale (HAMA-17) [13, 14], which was divided into five grades: extremely severe (≥ 29 points), severe (≥ 21 and < 29 points), moderate (≥ 14 and < 21 points), mild (≥ 7 and < 14 points), and none (< 7 points).”
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“, anhedonia) [48]; HAM-D is more sensitive to detect somatic and anxiety symptoms associated with depression [49]; HAM-A is a tool that defines the severity of anxiety [50]; CGIs is a simple tool to evaluate”
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“HAMA and HAMD.”
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“Two trained psychiatric postgraduate students assessed the patients via the 17-item Hamilton Depression Scale (HAMD-17) and Hamilton Anxiety Rating Scale (HAM-A).(30) Patients needed to provide marital status, educational level, occupation, family history, presence of somatic diseases, their own attribution of their s…”
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“Besides, only three LBC showed mild anxiety (HAMA score range 1∼3), no LBC presented depression symptom (see Table 1).”
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“The HAM-A was developed by Hamilton in 1969 [20].”
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“The HAMA-14 contains two primary fac - tors: somatic anxiety and psychic anxiety [ 17].”
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“HAM-A [52] is a clinician-administered 14-item scale for rating the severity of anxiety in adults, adolescents, and children with proven reliability, validity, and sensitivity [57].”
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Chavez‐Baldini, U., Verweij, K. J. H., Bergamin, J., Luigjes, J., Mocking, R. J. T., Denys, D. A. J. P., Nieman, D. H., & Vulink, N. C. C. (2024) · Cogent Mental Health · doi:10.1080/28324765.2024.2313869 · Cited by 12
“The HAM-A demonstrates satisfactory interrater reliability and concurrent validity (Maier et al., 1988).”
Bhagavan, C., Glue, P., Evans, W., Reynolds, L., Turner, T., King, C., Russell, B. R., Morunga, E., Mills, J. L., Layton, G., et al. (2024) · Trials · doi:10.1186/s13063-024-08174-x · Cited by 10
“Interrater reliability of the HAM-A has been shown to be consistent and the scale has demonstrated satisfactory correlation coefficients indicating sufficient sensitivity to change [75].”
BackgroundWei, Y., Kung, Y., Lin, C., Chen, C., Lin, C., Tseng, R.-Y., Chen, Y.-L., Huang, W., Chen, P., Chong, S. T., et al. (2024) · Behavioral and Brain Functions · doi:10.1186/s12993-024-00238-x · Cited by 10
“We also used the Hospital Anxiety and Depression Scale (HADS) to evaluate the degree of anxiety (HADS-A) and depression (HADS-D) [58], as well as Hamilton Anxiety Rating Scale (Ham-A) and Hamilton Depression Rating Scale (Ham-D) [59, 60].”
MethodAlgorithm-Based Modular Psychotherapy Alleviates Brain Inflammation in Generalized Anxiety Disorder
Kéri, S., Kancsev, A., & Kelemen, O. (2024) · Life · doi:10.3390/life14070887 · Cited by 8
“Anxiety symptoms were evaluated using the Hamilton Anxiety Rating Scale (HAM-A) [65] and the Generalized Anxiety Disorder 7-item scale (GAD-7) [66].”
BackgroundMethodZhang, H., Liu, X., Su, Z., Wang, Y., Chen, B., Zhang, Z., Wang, B., Zhou, J. L., Zhang, L., & Zhao, X. (2024) · Frontiers in Neuroscience · doi:10.3389/fnins.2024.1429019 · Cited by 8
Mohamed, S. M. (2017) · American Journal of Nursing Science · doi:10.11648/j.ajns.20170603.17 · Cited by 7
Chen, Z., Chen, X., Liu, M., Liu, S., Yu, S., & Ma, L. (2018) · Korean Journal of Radiology · doi:10.3348/kjr.2018.19.1.85 · Cited by 8
Slater, P. F., Bunting, B., Hasson, F., Al‐Smadi, A. M., Gammouh, O. S., Ashour, A. F., & Jordan, D. (2019) · International Journal of Research in Nursing · doi:10.3844/ijrnsp.2019.1.9 · Cited by 8
“Whilst several papers have reported good reliability and validity (Maier et al., 1988; Clark and Donvan, 1994; Mondolo et al., 2006; Kummer et al., 2010; Leentjens et al., 2011) with acceptable Cronbach alpha scores were reported in numerous studies (Bjelland et al., 2002; García-Campayo et al.,…”
BackgroundMethodLv, X., Lu, F., Zhang, J., Chen, H., Zhang, L., Wang, X., Fan, Y., Fang, J., Hong, L., Wang, J., et al. (2020) · Journal of Affective Disorders · doi:10.1016/j.jad.2020.09.127 · Cited by 8
Associations between brain‐derived neurotrophic factor and cognitive impairment in panic disorder
Wang, W., Liu, Y., Luo, S., Guo, X., Luο, X., & Zhang, Y. (2020) · Brain and Behavior · doi:10.1002/brb3.1885 · Cited by 8
Gholamian, A., Bahrami, M., Sherbafchi, M. R., & Namnabati, M. (2021) · Journal of Education and Health Promotion · doi:10.4103/jehp.jehp_1494_20 · Cited by 8
Kumar, V., Klanidhi, K. B., Chakrawarty, A., Singh, J., Priti, P., Chatterjee, P., & Dey, A. B. (2021) · Asian Journal of Psychiatry · doi:10.1016/j.ajp.2021.102897 · Cited by 8
Hellström, L. C., Christensen, T. N., Bojesen, A. B., & Eplov, L. F. (2022) · Journal of Occupational Rehabilitation · doi:10.1007/s10926-022-10046-7 · Cited by 8
“The Hamilton Anxiety six-item Scale (HAM-A6) [33, 35] was used to measure core symptoms of anxiety, also on a 5-point Likert scale (0 equals not present and 4 equals very severe).”
MethodMiyaho, K., Sanada, K., Kurokawa, S., Tanaka, A., Tachibana, T., Ishii, C., Noda, Y., Nakajima, S., Fukuda, S., Mimura, M., et al. (2022) · Journal of Personalized Medicine · doi:10.3390/jpm12111827 · Cited by 12
“The HAM-A is a scale for measuring the severity of anxiety, consisting of 14 items, each rated on a scale of 0 (not present) to 4 (severe), with a total score ranging from 0 to 56 [14].”
BackgroundNeuropsychiatric Function Improvement in Pediatric Patients with Phenylketonuria
Grant, M., Jurecki, E. R., McCandless, S. E., Stahl, S. M., Bilder, D. A., Sanchez‐Valle, A., & Dimmock, D. (2023) · The Journal of Pediatrics · doi:10.1016/j.jpeds.2023.113526 · Cited by 8
Liu, T., Yan, Z., Han, Z., Zhang, J., Fang, B., & Yan, T. (2023) · Brain Science Advances · doi:10.26599/bsa.2023.9050009 · Cited by 8
“Motor, emotional, and cognitive functions were assessed with the following scales: UPDRS-I, UPDRS-II, UPDRS-III, UPDRS-IV, TUG, Berg, MoCA, MMSE, HAMA, and HAMD.”
MethodInfluentialNeuro‐11: a new questionnaire for the assessment of somatic symptom disorder in general hospitals
Zeng, S., Yu, Y., Lu, S., Zhang, S., Su, X., Dang, G., Liu, Y., Cai, Z., Chen, S., He, Y., et al. (2023) · General Psychiatry · doi:10.1136/gpsych-2023-101082 · Cited by 8
Althomali, O. W., Amin, J., Shaik, D. H., Alghamdi, W., Ibrahim, A. A., Hussein, H. M., & Kanwal, R. (2024) · Journal of Multidisciplinary Healthcare · doi:10.2147/jmdh.s449152 · Cited by 8
Comparison of first episode and recurrent major depression patients in terms of cognitive function
Kaygusuz, Ç. Ç., Arısoy, Ö., Boztaş, M. H., & Sercan, M. (2013) · Dusunen Adam The Journal of Psychiatry and Neurological Sciences · doi:10.5350/dajpn2013260401 · Cited by 9
“Scores of 0-4 means no anxiety, 4-17 means mild, 18-24 means moderate and above 25 means severe anxiety (40).”
Background伊藤, 和., & Audi, L. (2021) · Journal of Health Sciences · doi:10.17532/jhsci.2021.1191 · Cited by 8
Wu, L., Wang, X., Yang, Y., Dong, T.-F., Lei, L., Cheng, Q.-Q., & Li, S. (2020) · BMC Psychiatry · doi:10.1186/s12888-020-02519-x · Cited by 8
Volume Gain of Brainstem on Medication-Overuse Headache Using Voxel-Based Morphometry
Chen, Z., Chen, X.-Y., Liu, M., Ma, L., & Yu, S. (2018) · Chinese Medical Journal · doi:10.4103/0366-6999.240807 · Cited by 8
Clinical findings of hyperechoic substantia nigra in patients with Parkinson's disease
Fan, Y.-Y., Ma, J.-J., Yang, D.-W., Li, X.-H., Liang, K.-K., She, Z., Qi, X., Shi, X., Gu, Q., Zheng, J.-H., et al. (2024) · European Journal of Neuroscience · doi:10.1111/ejn.16308 · Cited by 7
“Neuropsychiatric symptoms were assessed with the 14-item Hamilton Anxiety Rating Scale (HAMA) and the 17-item Hamilton Depression Rating Scale (HAMD) (Leentjens et al., 2000; Maier et al., 1988).”
MethodCircuit-based neuromodulation enhances delayed recall in amnestic mild cognitive impairment
Ma, J., Wu, J., Xing, X., Xue, X., Xiang, Y., Zhen, X., Li, J., Lu, J., Zhang, J.-P., Zheng, M., et al. (2024) · Journal of Neurology Neurosurgery & Psychiatry · doi:10.1136/jnnp-2023-333152 · Cited by 9
Mishra, D. N., & Kumar, M. (2024) · Heliyon · doi:10.1016/j.heliyon.2024.e36885 · Cited by 14
“A total score of 17 or less indicates mild anxiety severity, 18 to 24 indicates mild to moderate anxiety severity, and 25 to 30 indicates moderate to severe anxiety severity [22].”
BackgroundMeng, F., Ou, W., Zhao, X., Wang, M., Lu, X., Dong, Q., Zhang, L., Sun, J., Guo, H., Zhao, F., et al. (2024) · European Archives of Psychiatry and Clinical Neuroscience · doi:10.1007/s00406-024-01883-z · Cited by 7
“The severity of anxiety was assessed by the Hamilton Anxiety Rating Scale (HAMA) [34] with scores ranging from 0 to 56 points.”
Shan, J., & Qi, X. (2024) · Noise and Health · doi:10.4103/nah.nah_57_24 · Cited by 7
Wu, L., Zhou, F., Cheng, Y., Lv, W., Shi, W., & Xu, X. (2025) · Noise and Health · doi:10.4103/nah.nah_124_24 · Cited by 7
“[15,16] The medication compliance of the patients was compared and divided into three levels.”
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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