1.Network Structure of Depression and Anxiety Symptoms in Older Asian Patients With Depressive Disorders: Findings From REAP-AD3
Seon-Cheol PARK ; Kiwon KIM ; Jeongsoo PARK ; Sun CHOI ; Seonhwa LEE ; Seungwon CHO ; Eunkyung KIM ; Tian-Mei SI ; Roy Abraham KALLIVAYALIL ; Andi J. TANRA ; Amir Hossein Jalali NADOUSHAN ; Kok Yoon CHEE ; Afzal JAVED ; Kang SIM ; Pornjira PARIWATCHARAKUL ; Takahiro A. KATO ; Shih-Ku LIN ; Naotaka SHINFUKU ; Norman SARTORIUS
Psychiatry Investigation 2025;22(5):552-563
Objective:
The clinical presentation of depressive disorders might be influenced by age, and its diagnosis and treatment can be affected by ageism-related bias. A network analysis can reveal symptom patterns unrecognized by the reductionistic approach. Therefore, this study explores the network structure of depression and anxiety symptoms in older Asian patients with depressive disorders and examines age-related differences in the context of ageism.
Methods:
We used data from the Research on Asian Psychotropic Prescription Patterns for Antidepressants, Phase 3 study and included 2,785 psychiatric patients from 11 Asian countries. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7. Network analyses were conducted to identify symptom interconnections and centrality among older (>65 years), middle-aged (35–64 years), and young (18–34 years) adult groups. The network structures were also compared using a network comparison test.
Results:
Depressed mood was the most central symptom across all age groups. Network comparisons revealed no significant structural differences among the three age groups, despite several variations in terms of global strength. The network structure of the older group was characterized by strong interconnections between somatic symptoms (insomnia-energy) and core depressive symptoms (little interest or pleasure-feelings of hopelessness).
Conclusion
This study reveals that the network structures of depression and anxiety symptoms have relatively consistent interconnections across age groups, despite subtle age-based differences. Specifically, older adults tend to present anxiety and depression symptoms as physical complaints. These findings challenge ageist stereotypes and advocate for inclusive, age-neutral approaches to treatment.
2.Network Structure of Depression and Anxiety Symptoms in Older Asian Patients With Depressive Disorders: Findings From REAP-AD3
Seon-Cheol PARK ; Kiwon KIM ; Jeongsoo PARK ; Sun CHOI ; Seonhwa LEE ; Seungwon CHO ; Eunkyung KIM ; Tian-Mei SI ; Roy Abraham KALLIVAYALIL ; Andi J. TANRA ; Amir Hossein Jalali NADOUSHAN ; Kok Yoon CHEE ; Afzal JAVED ; Kang SIM ; Pornjira PARIWATCHARAKUL ; Takahiro A. KATO ; Shih-Ku LIN ; Naotaka SHINFUKU ; Norman SARTORIUS
Psychiatry Investigation 2025;22(5):552-563
Objective:
The clinical presentation of depressive disorders might be influenced by age, and its diagnosis and treatment can be affected by ageism-related bias. A network analysis can reveal symptom patterns unrecognized by the reductionistic approach. Therefore, this study explores the network structure of depression and anxiety symptoms in older Asian patients with depressive disorders and examines age-related differences in the context of ageism.
Methods:
We used data from the Research on Asian Psychotropic Prescription Patterns for Antidepressants, Phase 3 study and included 2,785 psychiatric patients from 11 Asian countries. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7. Network analyses were conducted to identify symptom interconnections and centrality among older (>65 years), middle-aged (35–64 years), and young (18–34 years) adult groups. The network structures were also compared using a network comparison test.
Results:
Depressed mood was the most central symptom across all age groups. Network comparisons revealed no significant structural differences among the three age groups, despite several variations in terms of global strength. The network structure of the older group was characterized by strong interconnections between somatic symptoms (insomnia-energy) and core depressive symptoms (little interest or pleasure-feelings of hopelessness).
Conclusion
This study reveals that the network structures of depression and anxiety symptoms have relatively consistent interconnections across age groups, despite subtle age-based differences. Specifically, older adults tend to present anxiety and depression symptoms as physical complaints. These findings challenge ageist stereotypes and advocate for inclusive, age-neutral approaches to treatment.
3.Network Structure of Depression and Anxiety Symptoms in Older Asian Patients With Depressive Disorders: Findings From REAP-AD3
Seon-Cheol PARK ; Kiwon KIM ; Jeongsoo PARK ; Sun CHOI ; Seonhwa LEE ; Seungwon CHO ; Eunkyung KIM ; Tian-Mei SI ; Roy Abraham KALLIVAYALIL ; Andi J. TANRA ; Amir Hossein Jalali NADOUSHAN ; Kok Yoon CHEE ; Afzal JAVED ; Kang SIM ; Pornjira PARIWATCHARAKUL ; Takahiro A. KATO ; Shih-Ku LIN ; Naotaka SHINFUKU ; Norman SARTORIUS
Psychiatry Investigation 2025;22(5):552-563
Objective:
The clinical presentation of depressive disorders might be influenced by age, and its diagnosis and treatment can be affected by ageism-related bias. A network analysis can reveal symptom patterns unrecognized by the reductionistic approach. Therefore, this study explores the network structure of depression and anxiety symptoms in older Asian patients with depressive disorders and examines age-related differences in the context of ageism.
Methods:
We used data from the Research on Asian Psychotropic Prescription Patterns for Antidepressants, Phase 3 study and included 2,785 psychiatric patients from 11 Asian countries. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7. Network analyses were conducted to identify symptom interconnections and centrality among older (>65 years), middle-aged (35–64 years), and young (18–34 years) adult groups. The network structures were also compared using a network comparison test.
Results:
Depressed mood was the most central symptom across all age groups. Network comparisons revealed no significant structural differences among the three age groups, despite several variations in terms of global strength. The network structure of the older group was characterized by strong interconnections between somatic symptoms (insomnia-energy) and core depressive symptoms (little interest or pleasure-feelings of hopelessness).
Conclusion
This study reveals that the network structures of depression and anxiety symptoms have relatively consistent interconnections across age groups, despite subtle age-based differences. Specifically, older adults tend to present anxiety and depression symptoms as physical complaints. These findings challenge ageist stereotypes and advocate for inclusive, age-neutral approaches to treatment.
4.Network Structure of Depression and Anxiety Symptoms in Older Asian Patients With Depressive Disorders: Findings From REAP-AD3
Seon-Cheol PARK ; Kiwon KIM ; Jeongsoo PARK ; Sun CHOI ; Seonhwa LEE ; Seungwon CHO ; Eunkyung KIM ; Tian-Mei SI ; Roy Abraham KALLIVAYALIL ; Andi J. TANRA ; Amir Hossein Jalali NADOUSHAN ; Kok Yoon CHEE ; Afzal JAVED ; Kang SIM ; Pornjira PARIWATCHARAKUL ; Takahiro A. KATO ; Shih-Ku LIN ; Naotaka SHINFUKU ; Norman SARTORIUS
Psychiatry Investigation 2025;22(5):552-563
Objective:
The clinical presentation of depressive disorders might be influenced by age, and its diagnosis and treatment can be affected by ageism-related bias. A network analysis can reveal symptom patterns unrecognized by the reductionistic approach. Therefore, this study explores the network structure of depression and anxiety symptoms in older Asian patients with depressive disorders and examines age-related differences in the context of ageism.
Methods:
We used data from the Research on Asian Psychotropic Prescription Patterns for Antidepressants, Phase 3 study and included 2,785 psychiatric patients from 11 Asian countries. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7. Network analyses were conducted to identify symptom interconnections and centrality among older (>65 years), middle-aged (35–64 years), and young (18–34 years) adult groups. The network structures were also compared using a network comparison test.
Results:
Depressed mood was the most central symptom across all age groups. Network comparisons revealed no significant structural differences among the three age groups, despite several variations in terms of global strength. The network structure of the older group was characterized by strong interconnections between somatic symptoms (insomnia-energy) and core depressive symptoms (little interest or pleasure-feelings of hopelessness).
Conclusion
This study reveals that the network structures of depression and anxiety symptoms have relatively consistent interconnections across age groups, despite subtle age-based differences. Specifically, older adults tend to present anxiety and depression symptoms as physical complaints. These findings challenge ageist stereotypes and advocate for inclusive, age-neutral approaches to treatment.
5.Network Structure of Depression and Anxiety Symptoms in Older Asian Patients With Depressive Disorders: Findings From REAP-AD3
Seon-Cheol PARK ; Kiwon KIM ; Jeongsoo PARK ; Sun CHOI ; Seonhwa LEE ; Seungwon CHO ; Eunkyung KIM ; Tian-Mei SI ; Roy Abraham KALLIVAYALIL ; Andi J. TANRA ; Amir Hossein Jalali NADOUSHAN ; Kok Yoon CHEE ; Afzal JAVED ; Kang SIM ; Pornjira PARIWATCHARAKUL ; Takahiro A. KATO ; Shih-Ku LIN ; Naotaka SHINFUKU ; Norman SARTORIUS
Psychiatry Investigation 2025;22(5):552-563
Objective:
The clinical presentation of depressive disorders might be influenced by age, and its diagnosis and treatment can be affected by ageism-related bias. A network analysis can reveal symptom patterns unrecognized by the reductionistic approach. Therefore, this study explores the network structure of depression and anxiety symptoms in older Asian patients with depressive disorders and examines age-related differences in the context of ageism.
Methods:
We used data from the Research on Asian Psychotropic Prescription Patterns for Antidepressants, Phase 3 study and included 2,785 psychiatric patients from 11 Asian countries. Depression and anxiety symptoms were assessed using the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7. Network analyses were conducted to identify symptom interconnections and centrality among older (>65 years), middle-aged (35–64 years), and young (18–34 years) adult groups. The network structures were also compared using a network comparison test.
Results:
Depressed mood was the most central symptom across all age groups. Network comparisons revealed no significant structural differences among the three age groups, despite several variations in terms of global strength. The network structure of the older group was characterized by strong interconnections between somatic symptoms (insomnia-energy) and core depressive symptoms (little interest or pleasure-feelings of hopelessness).
Conclusion
This study reveals that the network structures of depression and anxiety symptoms have relatively consistent interconnections across age groups, despite subtle age-based differences. Specifically, older adults tend to present anxiety and depression symptoms as physical complaints. These findings challenge ageist stereotypes and advocate for inclusive, age-neutral approaches to treatment.
7.Prescription Patterns for Bipolar Disorder in Asian Countries:Findings from Research on Asian Prescription Pattern-Bipolar Disorder
Shih-Ku LIN ; Shu-Yu YANG ; Seon-Cheol PARK ; Ok-Jin JANG ; Xiaomin ZHU ; Yu-Tao XIANG ; Wen-Chen OUYANG ; Afzal JAVED ; M. Nasar SAYEED KHAN ; Sandeep GROVER ; Ajit AVASTHI ; Roy Abraham KALLIVAYALIL ; Kok Yoon CHEE ; Norliza CHEMI ; Takahiro A. KATO ; Kohei HAYAKAWA ; Pornjira PARIWATCHARAKUL ; Margarita MARAMIS ; Lakmi SENEVIRATNE ; Sim KANG ; Wai Kwong TANG ; Tin OO ; Norman SARTORIUS ; Chay-Hoon TAN ; Mian-Yoon CHONG ; Yong Chon PARK ; Naotaka SHINFUKU
Clinical Psychopharmacology and Neuroscience 2022;20(1):61-69
Objective:
Pharmacotherapy including mood stabilizers and antipsychotics are frequently used in bipolar disorder (BD); however, the lack of consensus regarding the definition of polypharmacy hinders conducting comparative studies across different settings and countries. Research on Asian Prescription Pattern (REAP) is the largest and the longest lasting international collaborative research in psychiatry in Asia. The objective of REAP BD was to investigate the prescription patterns of psychotropic medications across Asian countries. The rates of polypharmacy and psychotropic drug load were also analyzed.
Methods:
The data collection was web-based. Prescription patterns were categorized as (1) mood stabilizer monotherapy: one mood stabilizer; (2) antipsychotic monotherapy: one antipsychotic; (3) simple polypharmacy: one mood stabilizer and one antipsychotic; and (4) complex polypharmacy: ≥ 2 mood stabilizers or/and antipsychotics. The psychotropic drug load in each patient was calculated using the defined daily dose method.
Results:
Among 2003 patients with BD (52.1% female, 42.4 years) from 12 countries, 1,619 (80.8%) patients received mood stabilizers, 1,644 (82.14%) received antipsychotics, and 424 (21.2%) received antidepressants, with 14.7% mood stabilizer monotherapy, 13.4% antipsychotic monotherapy, 48.9% simple polypharmacy, 20.3% complex polypharmacy, and 2.6% other therapy. The average psychotropic drug load was 2.05 ± 1.40. Results varied widely between countries.
Conclusion
Over 70% of psychotropic regimens involved polypharmacy, which accords with the high prevalence of polypharmacy in BD under a permissive criterion (2 or more core psychotropic drugs) worldwide. Notably, ≥ 80% of our sample received antipsychotics, which may indicate an increasing trend in antipsychotic use for BD treatment.
8.A Bibliometric Analysis of Scientific Production on Second-Generation Anti- Psychotic Drugs in Malaysia
Cecilio ÁLAMO ; Francisco LÓPEZ-MU?OZ ; Francisco J POVEDANO-MONTERO ; Kok-Yoon CHEE ; Winston W SHEN ; Poveda FERNÁNDEZ-MARTÍN ; Javier GARCÍA-PACIOS ; Gabriel R
Malaysian Journal of Medical Sciences 2018;25(3):40-55
Objective: We carried out a bibliometric study on the scientific papers related to second generation anti-psychotic drugs (SGAs) in Malaysia. Methods: With the SCOPUS database, we selected those documents made in Malaysia whose title included descriptors related to SGAs. We applied bibliometric indicators of production and dispersion, as Price’s law and Bradford’s law, respectively. We also calculated the participation index of the different countries. The bibliometric data were also been correlated with some social and health data from Malaysia (total per capita expenditure on health and gross domestic expenditure on R&D). Results: We found 105 original documents published between 2004 and 2016. Our results fulfilled Price’s law, with scientific production on SGAs showing exponential growth (r = 0.401, vs. r = 0.260 after linear adjustment). The drugs most studied are olanzapine (9 documents), clozapine (7), and risperidone (7). Division into Bradford zones yields a nucleus occupied by the Medical Journal of Malaysia, Singapore Medical Journal, Australian and New Zealand Journal of Psychiatry, and Pharmacogenomics. Totally, 63 different journals were used, but only one in the top four journals had an impact factor being greater than 3. Conclusion: The publications on SGAs in Malaysia have undergone exponential growth, without evidence a saturation point.
9.Adult-onset metachromatic leukodystrophy with compound heterozygous ARSA gene mutation presented with mania and cognitive decline
Kok-Yoon Chee ; Nor Azimah Abd Azize ; Norzaini Rose Mohd Zain FRCR ; Phaik-Yee Ooi ; Loi-Khim Chin ; Affandi Omar ; Yusnita Yakob ; Julaina Abdul Jalil
Neurology Asia 2016;21(2):199-201
Adult-onset metachromatic leukodystrophy is often a diagnostic challenge to many clinicians. It may
be presented with psychiatry symptom before other evidences of leukodystrophy are uncovered. We
report a 53-year-old patient who presented with 7-year history of manic-like presentation in addition to
progressive neurocognitive deterioration. Diagnosis was made eventually with neuroimaging. Mutational
analysis showed compound heterozygous of ARSA gene. This case demonstrated the challenge in
diagnosing this condition due to its complex neuropsychiatric presentation.
Leukodystrophy, Metachromatic
10.Prevalence and prescription of antidepressants in depression with somatic comorbidity in Asia: the Research on East Asian Psychotropic Prescription Patterns study.
Chao CHEN ; Tian-Mei SI ; Yu-Tao XIANG ; Gabor S UNGVARI ; Chuan-Yue WANG ; Yan-Ling HE ; Ee-Heok KUA ; Senta FUJII ; Kang SIM ; Jitendra K TRIVEDI ; Eun-Kee CHUNG ; Pichet UDOMRATN ; Kok-Yoon CHEE ; Norman SARTORIUS ; Chay-Hoon TAN ; Naotaka SHINFUKU
Chinese Medical Journal 2015;128(7):853-858
BACKGROUNDDepression is often comorbid with chronic somatic diseases. Few previous studies have investigated the prevalence of somatic diseases in depression or the prescription pattern of antidepressants in comorbidly depressed patients in Asia. This study aimed to investigate the prevalence of somatic comorbidity (SC) in depression and compared the prescriptions of antidepressants in depressed patients with and without SC.
METHODSA total of 2320 patients treated with antidepressants in 8 Asian countries were examined, and a diagnosis was based on the International Classification of Disease, 10 th revision. We listed 17 common chronic somatic diseases. Patients' socio-demographic and clinical characteristics and psychotropic drug prescriptions were recorded using a standardized protocol and data collection procedure.
RESULTSOf the patients examined, 1240 were diagnosed with depression and 30% of them (n = 375) had SC. The most common comorbid condition was diabetes (23.7%). The patients with SC were more likely to seek help at a general hospital (74.7% vs. 47.2%), and had a higher incidence of symptoms involving sadness, disturbed sleep, and poor appetite. Noradrenergic and specific serotonergic antidepressant was prescribed more for patients with SC than for those without SC (30.4% vs. 22.9%).
CONCLUSIONSSC is common in depressed Asian patients. It is important to strengthen the recognition of depression, especially in general hospitals and when patients report some somatic discomfort. It is also a matter of urgency to establish evidence-based guidelines for the use of new antidepressants in depressed patients with SC.
Adult ; Antidepressive Agents ; therapeutic use ; Asia ; Asian Continental Ancestry Group ; Depression ; drug therapy ; epidemiology ; Drug Prescriptions ; statistics & numerical data ; Female ; Humans ; Male ; Middle Aged ; Prevalence

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