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Author

  • Gabor Ungvari
Article
6 Citations (Scopus)

Recovery of cognitive functioning following abstinence from ketamine

Tang, W. K., Lau, C. G., Ungvari, G. S., Lin, S. K. & Lane, H. Y., 1 Dec 2019, In : Addictive Behaviors. 99, 106081.

Research output: Contribution to journalArticle

Relationship Between Cognitive Impairment and Depressive Symptoms in Current Ketamine Users

Tang, W. K., Liang, H. J., Lau, C. G., Tang, A. & Ungvari, G., 2013, In : Journal of Studies on Alcohol and Drugs. 74, 3, p. 460-468

Research output: Contribution to journalArticle

28 Citations (Scopus)

Relationship of sleep duration with sociodemographic characteristics, lifestyle, mental health, and chronic diseases in a large Chinese adult population

Wang, S., Li, B., Wu, Y., Ungvari, G. S., Ng, C. H., Fu, Y., Kou, C., Yu, Y., Sun, H. Q. & Xiang, Y-T., 2017, In : Journal of Clincal Sleep Medicine. 13, 3, p. 377-384 8 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

Schizophrenia with prominent catatonic features: A selective review

Ungvari, G. S., Gerevich, J., Takács, R. & Gazdag, G., 1 Oct 2018, In : Schizophrenia Research. 200, p. 77-84 8 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Screening for bipolar disorder with the Mood Disorders Questionnaire in patients diagnosed as major depressive disorder - The experience in China

Hu, C., Xiang, Y-T., Wang, G., Ungvari, G., Dickerson, F. B., Kilbourne, A. M., Lai, K. Y. C., Si, T-M., Fang, Y-R., Lu, Z., Yang, H-C., Hu, J., Chen, Z-Y., Huang, Y., Sun, J., Wang, X-P., Li, H-C., Zhang, J-B. & Chiu, H. F. K., 2012, In : Journal of Affective Disorders. 141, p. 40-46

Research output: Contribution to journalArticle

14 Citations (Scopus)

Serum 25-Hydroxyvitamin d levels and depression in older adults: A dose–response meta-analysis of prospective cohort studies

Li, H., Sun, D., Wang, A., Pan, H., Feng, W., Ng, C. H., Ungvari, G. S., Tao, L., Li, X., Wang, W., Xiang, Y. T. & Guo, X., 1 Jan 2019, In : American Journal of Geriatric Psychiatry.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Sex differences in use of psychotropic drugs and drug-induced side effects in schizophrenia patients: Findings of the Research on Asia Psychotropic Prescription (REAP) studies

Xiang, Y-T., Wang, C-Y., Si, T-M., Lee, E. H. M., He, Y-L., Ungvari, G., Chiu, H. F. K., Yang, S-Y., Chong, M-Y., Shinfuku, N., Tan, C. H., Kua, E. H., Fujii, S., Sim, K., Yong, K. H., Trivedi, J. K., Chung, E. K., Udomratn, P., Chee, K-Y. & Sartorius, N., 2011, In : Australian and New Zealand Journal of Psychiatry. 45, p. 193-198

Research output: Contribution to journalArticle

14 Citations (Scopus)

Short-term efficacy and tolerability of lurasidone in the treatment of acute schizophrenia: A meta-analysis of randomized controlled trials

Zheng, W., Cai, D. B., Yang, X. H., Li, L., Zhang, Q. E., Ng, C. H., Ungvari, G. S., Li, X. B., Ning, Y. P. & Xiang, Y. T., 1 Aug 2018, In : Journal of Psychiatric Research. 103, p. 244-251 8 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Short versions of the 32-item Hypomania Checklist: A systematic review

Wang, Y. Y., Xu, D. D., Feng, Y., Chow, I. H. I., Ng, C. H., Ungvari, G. S., Wang, G. & Xiang, Y. T., 8 May 2019, In : Perspectives in Psychiatric Care.

Research output: Contribution to journalArticle

Single i.v. ketamine augmentation of newly initiated escitalopram for major depression: Results from a randomized, placebo-controlled 4-week study

Hu, Y. D., Xiang, Y. T., Fang, J. X., Zu, S., Sha, S., Shi, H., Ungvari, G., Correll, C. U., Chiu, H. F. K., Xue, Y., Tian, T. F., Wu, A. S., Ma, X. & Wang, G., 2016, In : Psychological Medicine. 46, 3, p. 623-635

Research output: Contribution to journalArticle

46 Citations (Scopus)

Sleep duration and its association with demographics, lifestyle factors, poor mental health and chronic diseases in older Chinese adults

Wang, S., Wu, Y., Ungvari, G. S., Ng, C. H., Forester, B. P., Gatchel, J. R., Chiu, H. F. K., Kou, C., Fu, Y., Qi, Y., Yu, Y., Li, B. & Xiang, Y-T., 1 Nov 2017, In : Psychiatry Research. 257, p. 212-218 7 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Sleep duration and patterns in Chinese patients with diabetes: A meta-analysis of comparative studies and epidemiological surveys

Wang, F., Chow, I. H. I., Li, L., Li, X. H., Ng, C. H., Ungvari, G. S., Wang, A. H., Jia, F. J., Zhang, Y. & Xiang, Y. T., 1 Apr 2019, In : Perspectives in Psychiatric Care. 55, 2, p. 344-353 10 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Sleep Duration and Quality of Life in Young Rural Chinese Residents

Chiu, H. F. K., Xiang, Y-T., Dai, J., Chan, S. S. M., Yu, X., Ungvari, G. & Caine, E. D., 2013, In : Behavioral Sleep Medicine. 11, p. 1-9

Research output: Contribution to journalArticle

8 Citations (Scopus)

Sleep duration and self-rated health in Chinese university students

Li, L., Lok, K. I., Mei, S. L., Cui, X. L., Li, L., Ng, C. H., Ungvari, G. S., Ning, Y. P., An, F. R. & Xiang, Y. T., Dec 2019, In : SLEEP AND BREATHING. 23, 4, p. 1351-1356

Research output: Contribution to journalArticle

1 Citation (Scopus)

Sleep Duration and Sleep Patterns in Chinese University Students: A Comprehensive Meta-Analysis

Li, L., Wang, Y-Y., Wang, S-B., Li, L., Lu, L., Ng, C. H., Ungvari, G. S., Chiu, H. F. K., Hou, C-L., Jia, F-J. & Xiang, Y-T., 2017, In : Journal of Clincal Sleep Medicine. 13, 10, p. 1153-1162 10 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Smoking and its associations with sociodemographic and clinical characteristics and quality of life in patients with schizophrenia treated in primary care in China

Li, Y., Hou, C. L., Ma, X. R., Zang, Y., Jia, F. J., Zhong, B. L., Lin, Y. Q., Chiu, H. F. K., Ungvari, G., Himelhoch, S., Cao, X. L., Cai, M. Y., Lai, K. Y. C. & Xiang, Y. T., 2016, In : General Hospital Psychiatry. 38, p. 79-83

Research output: Contribution to journalArticle

6 Citations (Scopus)

Smoking in male patients with schizophrenia in China: A meta-analysis

Li, Y., Cao, X. L., Zhong, B. L., Ungvari, G., Chiu, H. F. K., Lai, K. Y. C., Zheng, W., Correll, C. U. & Xiang, Y. T., 2016, In : Drug and Alcohol Dependence. 162, p. 146-153

Research output: Contribution to journalArticle

25 Citations (Scopus)

Socio-demographic and clinical profiles of paranoid and nonparanoid schizophrenia: A propective, multicenter study in China

Xiang, Y-T., Wang, C-Y., Chiu, H. F. K., Weng, Y-Z., Bo, Q-J., Chan, S. S. M., Lee, E. H. M. & Ungvari, G., 2011, In : Perspectives in Psychiatric Care. 47, 3, p. 126-130

Research output: Contribution to journalArticle

3 Citations (Scopus)

Subcortical white matter infarcts predict 1-year outcome of fatigue in stroke

Tang, W. K., Chen, Y. K., Liang, H. J., Chu, W. C. W., Mok, V. C. T., Ungvari, G. & Wong, K. S., 2014, In : BMC Neurology. 14, 234, p. 1-6

Research output: Contribution to journalArticle

Open Access
9 Citations (Scopus)

Suicidal ideation at 1-year post-stroke: A nationwide survey in China

Yang, Y., Shi, Y. Z., Zhang, N., Wang, S., Ungvari, G. S., Ng, C. H., Wang, Y. L., Zhao, X. Q., Wang, Y. J., Wang, C. X. & Xiang, Y-T., 1 Jan 2017, In : General Hospital Psychiatry. 44, p. 38-42 5 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Suicidal ideation in Chinese patients with chronic obstructive pulmonary disease: A controlled study

Wong, T. S., Xiang, Y. T., Tsoh, J., Ungvari, G., Ko, F. W. S., Hui, D. S. C. & Chiu, H. F. K., 2016, In : Psychogeriatrics. 16, 3, p. 172-176

Research output: Contribution to journalArticle

1 Citation (Scopus)

Suicidal thoughts and behaviors in older adults in rural China: a preliminary study

Chiu, H. F. K., Dai, J., Xiang, Y. T., Chan, S. S. M., Leung, T., Hou, Z. J., Ungvari, G. & Caine, E. D., 2012, In : International Journal of Geriatric Psychiatry. 27, p. 1124-1130

Research output: Contribution to journalArticle

26 Citations (Scopus)

Suicide after hospital contact for psychiatric assessment in Hong Kong: A long-term cohort study

Leung, C. M., Lee, S., T.S. Lee, D., T.Y. Yan, C., So, J., S. Ungvari, G., H. Ng, C. & Xiang, Y. T., 1 Jun 2018, In : Psychiatry Research. 264, p. 266-269 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Tardive dyskinesia in the treatment of schizophrenia: the findings of the research on Asian psychotropic prescription pattern (REAP) survey (2001 - 2009)

Xiang, Y. -T., Wang, C. -Y., Si, T-M., Lee, E. H. M., He, Y-L., Ungvari, G., Chiu, H. F. K., Yang, S-Y., Chong, M-Y., Tan, C. . H., Kua, E. . H., Fujii, S., Sim, K., Yong, K. H., Trivedi, J., Chung, E. . K., Udomratn, P., Chee, K. -Y., Sartorius, N. & Shinfuku, N., 2011, In : International Journal of Clinical Pharmacology and Therapeutics. 45, 11, p. 968-975

Research output: Contribution to journalArticle

23 Citations (Scopus)

The 33-item Hypomania Checklist (HCL-33): A new self-completed screening instrument for bipolar disorder

Feng, Y., Xiang, Y. T., Huang, W., Wang, G., Feng, L., Tian, T. F., Geng, Y., Ungvari, G., Chiu, H. F. K., Tse, A. W. Y. & Angst, J., 2016, In : Journal of Affective Disorders. 190, p. 214-220

Research output: Contribution to journalArticle

20 Citations (Scopus)

The assessment of decision-making competence in patients with depression using the MacArthur competence assessment tools: A systematic review

Wang, Y-Y., Wang, S-B., Ungvari, G. S., Yu, X., Ng, C. H. & Xiang, Y. T., 1 Apr 2018, In : Perspectives in Psychiatric Care. 54, 2, p. 206-211 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

The association between post-stroke depression, aphasia, and physical independence in stroke patients at 3-month follow-up

Wang, S., Wang, C. X., Zhang, N., Xiang, Y. T., Yang, Y., Shi, Y. Z., Deng, Y. M., Zhu, M. F., Liu, F., Yu, P., Ungvari, G. S. & Ng, C. H., 20 Aug 2018, In : Frontiers in Psychiatry. 9, AUG, 374.

Research output: Contribution to journalArticle

Open Access
8 Citations (Scopus)

The Bipolar II depression questionnaire: A self-report Tool for detecting Bipolar II depression

Leung, C. M., Lapyim, C., Yan, C. T. Y., Chan, C. C., Xiang, Y. T., Mak, A. D. P., Fok, M. L. Y. & Ungvari, G. S., 2016, In : PLoS One. 11, 3

Research output: Contribution to journalArticle

1 Citation (Scopus)

The Description of the Litigious Querulant: Heinrich von Kleist's Novella Michael Kohlhaas

Gerevich, J. & Ungvari, G., 2015, In : Psychopathology. 48, 2, p. 79-83

Research output: Contribution to journalArticle

2 Citations (Scopus)

The development and validation of a short version of the 33-item Hypomania Checklist (HCL-33)

Wang, Y. Y., Feng, Y., Xu, D. D., Huang, W., Chow, I. H. I., Ng, C. H., Ungvari, G. S., Yuan, Z., Wang, G. & Xiang, Y. T., 1 Aug 2018, In : Journal of Affective Disorders. 235, p. 206-210 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

The disability rate of 5-year post-stroke and its correlation factors: A national survey in China

Yang, Y., Shi, Y. Z., Zhang, N., Wang, S., Ungvari, G. S., Ng, C. H., Wang, Y. L., Zhao, X. Q., Wang, Y. J., Wang, C. X. & Xiang, Y-T., 1 Nov 2016, In : PLoS One. 11, 11, e0165341.

Research output: Contribution to journalArticle

Open Access
18 Citations (Scopus)

The effect of artemether on psychotic symptoms and cognitive impairment in first-episode, antipsychotic drug-naive persons with schizophrenia seropositive to Toxoplasma gondii

Wang, H., Xiang, Y., Li, Q., Wang, X., Liu, Z., Hao, S., Liu, X., Liu, L., Wang, G., Wang, D., Zhang, P., Bao, A., Chiu, H., Ungvári, G., Lai, K. & Buchanan, R. W., 2014, In : Journal of Psychiatric Research. 53, 1, p. 119-124

Research output: Contribution to journalArticle

14 Citations (Scopus)

The impact of pain on health-related quality of life 3 months after stroke

Tang, W. K., Lau, C. G., Mok, V., Ungvari, G. & Wong, K. S., 2015, In : Topics in Stroke Rehabilitation. 22, 3, p. 194-200

Research output: Contribution to journalArticle

5 Citations (Scopus)

The MacArthur Competence Assessment Tools for assessing decision-making capacity in schizophrenia: A meta-analysis

Wang, S. B., Wang, Y. Y., Ungvari, G. S., Ng, C. H., Wu, R. R., Wang, J. & Xiang, Y-T., 1 May 2017, In : Schizophrenia Research. 183, p. 56-63 8 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

The prevalence of agranulocytosis and related death in clozapine-treated patients: A comprehensive meta-analysis of observational studies

Li, X. H., Zhong, X. M., Lu, L., Zheng, W., Wang, S. B., Rao, W. W., Wang, S., Ng, C. H., Ungvari, G. S., Wang, G. & Xiang, Y. T., 12 Mar 2019, In : Psychological Medicine.

Research output: Contribution to journalArticle

8 Citations (Scopus)

The prevalence of autism spectrum disorders in China: A comprehensive meta-analysis

Wang, F., Lu, L., Wang, S. B., Zhang, L., Ng, C. H., Ungvari, G. S., Cao, X. L., Lu, J. P., Hou, C. L., Jia, F. J. & Xiang, Y. T., 12 May 2018, In : International Journal of Biological Sciences. 14, 7, p. 717-725 9 p.

Research output: Contribution to journalArticle

Open Access
26 Citations (Scopus)

The prevalence of bipolar disorder in China: A meta-analysis

Zhang, L., Cao, X. L., Wang, S. B., Zheng, W., Ungvari, G. S., Ng, C. H., Zhong, B. L., Wang, G. & Xiang, Y-T., 1 Jan 2017, In : Journal of Affective Disorders. 207, p. 413-421 9 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

The prevalence of depressive symptoms in 'left-behind children' in China: a meta-analysis of comparative studies and epidemiological surveys

Wang, Y-Y., Xiao, L., Rao, W-W., Chai, J-X., Zhang, S-F., Ng, C. H., Ungvari, G. S., Zhu, H. & Xiang, Y-T., 1 Feb 2019, In : Journal of Affective Disorders. 244, p. 209-216 8 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

The prevalence of insomnia and its socio-demographic and clinical correlates in older adults in rural China: a pilot study

Dai, J., Chiu, H. F. K., Xiang, Y-T., Chan, S. S. M., Yu, X., Hou, Z-J., Ungvari, G. & Caine, E. D., 2013, In : Aging and Mental Health. 17, 6, p. 761-765

Research output: Contribution to journalArticle

12 Citations (Scopus)

The prevalence of insomnia in the general population in China: A meta-analysis

Cao, X. L., Wang, S. B., Zhong, B. L., Zhang, L., Ungvari, G. S., Ng, C. H., Li, L., Chiu, H. F. K., Lok, G. K. I., Lu, J. P., Jia, F-J. & Xiang, Y-T., 1 Feb 2017, In : PLoS One. 12, 2, e0170772.

Research output: Contribution to journalArticle

Open Access
65 Citations (Scopus)

The prevalence of sleep disturbances and sleep quality in older Chinese adults: A comprehensive meta-analysis

Lu, L., Wang, S. B., Rao, W., Zhang, Q., Ungvari, G. S., Ng, C. H., Kou, C., Jia, F. J. & Xiang, Y. T., 31 May 2018, In : Behavioral Sleep Medicine. 15 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

The prevalence of sleep problems and their socio-demographic and clinical correlates in young Chinese rural residents

Chui, H. F-K., Xiang, Y-T., Dai, J., Chan, S. S-M., Leung, T., Yu, X., Hou, Z-J., Ungvari, G. & Caine, E. D., 2012, In : Psychiatry Research. 200, p. 789–794

Research output: Contribution to journalArticle

15 Citations (Scopus)

The Prevalence of Suicide Attempts and Independent Demographic and Clinical Correlates among Chronic Schizophrenia Patients in Agricultural Areas of China

Zhong, Y., Xia, L., Zhao, T. T., Zhang, Y. L., Zhang, Y. L., Li, W. Z., Hu, Y. Q., Yao, X. H., Ungvari, G. S., Balbuena, L., Liu, H. Z. & Xiang, Y. T., 17 May 2019, In : Psychiatric Quarterly.

Research output: Contribution to journalArticle

1 Citation (Scopus)

The psychometric properties of the Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR) and the Patient Health Questionnaire-9 (PHQ-9) in depressed inpatients in China

Feng, Y., Huang, W., Tian, T. F., Wang, G., Hu, C., Chiu, H. F. K., Ungvari, G., Kilbourne, A. M. & Xiang, Y. T., 2016, In : Psychiatry Research. 243, p. 92-96

Research output: Contribution to journalArticle

12 Citations (Scopus)

The psychometric properties of the Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR) in patients with HBV-related liver disease

Liu, M., Wang, Y., Zhao, J., Zheng, S., Ungvari, G. S., Ng, C. H., Duan, Z. P. & Xiang, Y., 1 Feb 2017, In : Shanghai Archives of Psychiatry. 29, 1, p. 15-20 6 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

The relationship between frontal lobe lesions, course of post-stroke depression, and 1-year prognosis in patients with first-ever ischemic stroke

Shi, Y., Xiang, Y., Wu, S., Zhang, N., Zhou, J., Bai, Y., Wang, S., Wang, Y., Zhao, X., Ungvári, G., Chiu, H. F. K. & Wang, C., 2014, In : PL o S One. 9, 7, p. 1-8

Research output: Contribution to journalArticle

Open Access
12 Citations (Scopus)

The Relationship Between Sleep Patterns, Quality of Life, and Social and Clinical Characteristics in Chinese Patients With Schizophrenia

Hou, C. L., Zang, Y., Ma, X. R., Cai, M. Y., Li, Y., Jia, F. J., Lin, Y. Q., Chiu, H. F. K., Ungvari, G. S., Ng, C. H., Zhong, B. L., Cao, X. L., Tam, M. I. & Xiang, Y. T., 1 Oct 2017, In : Perspectives in Psychiatric Care. 53, 4, p. 342-349 8 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Traditional Chinese Medicine diagnoses in persons with ketamine abuse

Tang, W., Lam, M., Leung, W., Sun, W., Chan, T. & Ungvari, G., 2013, In : Journal of Traditional Chinese Medicine. 33, 2, p. 164-169

Research output: Contribution to journalArticle

Open Access
3 Citations (Scopus)

Trends of polypharmacy and prescription patterns of antidepressants in Asia

Huang, C. Y., Yang, S. Y., Mojtabai, R., Lin, S. K., He, Y. L., Chong, M. Y., Ungvari, G., Tan, C. H., Xiang, Y. T., Sartorius, N., Shinfuku, N. & Chen, L. Y., 1 Dec 2018, In : Journal of Clinical Psychopharmacology. 38, 6, p. 598-603 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)