Ali Obaid Al-Hamzawi
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Ali Obaid Al-Hamzawi has a total of 115 co-authors. Here are the top co-authors by number of shared publications:
- Giovanni de Girolamo
IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
9 shared publications Chiyi Hu
7 shared publications- José Miguel Caldas-De-Almeida
Chronic Diseases Research Centre (CEDOC), Lisbon Institute of Global Mental Health, Lisbon, Portugal
7 shared publications Daphna Levinson
6 shared publications- Josep Maria Haro
Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu (IRSJD), Sant Boi de Llobregat, Spain
6 shared publications Ronny Bruffaerts
Universitair Psychiatrisch Centrum-KULeuven (UPC-KUL), Leuven, Belgiumbstract
6 shared publications
Latest Publications
- Open Access
- 31 July 2015
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 10 (7) , e0131937
The Epidemiology of Major Depressive Episode in the Iraqi General Population
To assess the prevalence, symptom severity, functional impairment, and treatment of major depressive episode (MDE) in the Iraqi general population. The Iraq Mental Health Survey is a nationally representative face-to-face survey of 4,332 non-institutionalized adults aged 18+ interviewed in 2006–2007 as part of the WHO World Mental Health Surveys. Prevalence and correlates of DSM-IV MDE were determined with the WHO Composite International Diagnostic Interview (CIDI). Lifetime and 12-month prevalence of MDE were 7.4% and 4.0%, respectively. Close to half (46%) of the 12-month MDE cases were severe/very severe. MDE was more common among women and those previously married. Median age of onset was 25.2. Only one-seventh of 12-month MDE cases received treatment despite being associated with very substantial role impairment (on average 70 days out of role in the past year). MDE is a commonly occurring disorder in the Iraqi general population and is associated with considerable disability and low treatment. Efforts are needed to decrease the barriers to treatment and to educate general medical providers in Iraq about the recognition and treatment of depression.
- 31 July 2015
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 10 (7) , e0131937
Open AccessThe Epidemiology of Major Depressive Episode in the Iraqi General Population
To assess the prevalence, symptom severity, functional impairment, and treatment of major depressive episode (MDE) in the Iraqi general population. The Iraq Mental Health Survey is a nationally representative face-to-face survey of 4,332 non-institutionalized adults aged 18+ interviewed in 2006–2007 as part of the WHO World Mental Health Surveys. Prevalence and correlates of DSM-IV MDE were determined with the WHO Composite International Diagnostic Interview (CIDI). Lifetime and 12-month prevalence of MDE were 7.4% and 4.0%, respectively. Close to half (46%) of the 12-month MDE cases were severe/very severe. MDE was more common among women and those previously married. Median age of onset was 25.2. Only one-seventh of 12-month MDE cases received treatment despite being associated with very substantial role impairment (on average 70 days out of role in the past year). MDE is a commonly occurring disorder in the Iraqi general population and is associated with considerable disability and low treatment. Efforts are needed to decrease the barriers to treatment and to educate general medical providers in Iraq about the recognition and treatment of depression.
- 1 April 2015
- Published by Elsevier in Journal of Psychosomatic Research
- Vol. 78 (4) , 409
Corrigendum to associations between DSM-IV mental disorders and subsequent self-reported diagnosis of cancer. J Psychosom Res 76 (2014) 207–212
- 1 April 2015
- Published by Elsevier in Journal of Psychosomatic Research
- Vol. 78 (4) , 409
Corrigendum to associations between DSM-IV mental disorders and subsequent self-reported diagnosis of cancer. J Psychosom Res 76 (2014) 207–212
- Open Access
- 28 March 2014
- Published by Springer Nature in Diabetologia
- Vol. 57 (6) , 1269-1270
Erratum to: Associations between DSM-IV mental disorders and diabetes mellitus: a role for impulse control disorders and depression
- 28 March 2014
- Published by Springer Nature in Diabetologia
- Vol. 57 (6) , 1269-1270
Open AccessErratum to: Associations between DSM-IV mental disorders and diabetes mellitus: a role for impulse control disorders and depression
- Open Access
- 1 March 2014
- Published by Elsevier in General Hospital Psychiatry
- Vol. 36 (2) , 142-149
Associations between mental disorders and subsequent onset of hypertension
- 1 March 2014
- Published by Elsevier in General Hospital Psychiatry
- Vol. 36 (2) , 142-149
Open AccessAssociations between mental disorders and subsequent onset of hypertension
- Top Cited Papers
- 9 August 2013
- Published by Cambridge University Press (CUP) in Psychological Medicine
- Vol. 44 (6) , 1303-1317
Barriers to mental health treatment: results from the WHO World Mental Health surveys
Background: To examine barriers to initiation and continuation of mental health treatment among individuals with common mental disorders.Method: Data were from the World Health Organization (WHO) World Mental Health (WMH) surveys. Representative household samples were interviewed face to face in 24 countries. Reasons to initiate and continue treatment were examined in a subsample (n = 636 78) and analyzed at different levels of clinical severity.Results: Among those with a DSM-IV disorder in the past 12 months, low perceived need was the most common reason for not initiating treatment and more common among moderate and mild than severe cases. Women and younger people with disorders were more likely to recognize a need for treatment. A desire to handle the problem on one's own was the most common barrier among respondents with a disorder who perceived a need for treatment (63.8%). Attitudinal barriers were much more important than structural barriers to both initiating and continuing treatment. However, attitudinal barriers dominated for mild-moderate cases and structural barriers for severe cases. Perceived ineffectiveness of treatment was the most commonly reported reason for treatment drop-out (39.3%), followed by negative experiences with treatment providers (26.9% of respondents with severe disorders).Conclusions: Low perceived need and attitudinal barriers are the major barriers to seeking and staying in treatment among individuals with common mental disorders worldwide. Apart from targeting structural barriers, mainly in countries with poor resources, increasing population mental health literacy is an important endeavor worldwide.
- 9 August 2013
- Published by Cambridge University Press (CUP) in Psychological Medicine
- Vol. 44 (6) , 1303-1317
Top Cited PapersBarriers to mental health treatment: results from the WHO World Mental Health surveys
Background: To examine barriers to initiation and continuation of mental health treatment among individuals with common mental disorders.Method: Data were from the World Health Organization (WHO) World Mental Health (WMH) surveys. Representative household samples were interviewed face to face in 24 countries. Reasons to initiate and continue treatment were examined in a subsample (n = 636 78) and analyzed at different levels of clinical severity.Results: Among those with a DSM-IV disorder in the past 12 months, low perceived need was the most common reason for not initiating treatment and more common among moderate and mild than severe cases. Women and younger people with disorders were more likely to recognize a need for treatment. A desire to handle the problem on one's own was the most common barrier among respondents with a disorder who perceived a need for treatment (63.8%). Attitudinal barriers were much more important than structural barriers to both initiating and continuing treatment. However, attitudinal barriers dominated for mild-moderate cases and structural barriers for severe cases. Perceived ineffectiveness of treatment was the most commonly reported reason for treatment drop-out (39.3%), followed by negative experiences with treatment providers (26.9% of respondents with severe disorders).Conclusions: Low perceived need and attitudinal barriers are the major barriers to seeking and staying in treatment among individuals with common mental disorders worldwide. Apart from targeting structural barriers, mainly in countries with poor resources, increasing population mental health literacy is an important endeavor worldwide.
- Open Access
- 1 June 2013
- Published by EDITORA SCIENTIFIC in Brazilian Journal of Psychiatry
- Vol. 35 (2) , 115-125
Family burden related to mental and physical disorders in the world: results from the WHO World Mental Health (WMH) surveys
Key words: Caregiver burden; family caregiver; cross-national; population-based; epidemiology; mental health
- 1 June 2013
- Published by EDITORA SCIENTIFIC in Brazilian Journal of Psychiatry
- Vol. 35 (2) , 115-125
Open AccessFamily burden related to mental and physical disorders in the world: results from the WHO World Mental Health (WMH) surveys
Key words: Caregiver burden; family caregiver; cross-national; population-based; epidemiology; mental health
- Open Access
- 2 January 2013
- Published by Royal College of Psychiatrists in The British Journal of Psychiatry
- Vol. 202 (1) , 42-49
Drop out from out-patient mental healthcare in the World Health Organization's World Menta Health Survey initiative
Background: Previous community surveys of the drop out from mental health treatment have been carried out only in the USA and Canada.Aims: To explore mental health treatment drop out in the World Health Organization World Mental Health Surveys.Method: Representative face-to-face household surveys were conducted among adults in 24 countries. People who reported mental health treatment in the 12 months before interview (n = 8482) were asked about drop out, defined as stopping treatment before the provider wanted.Results: Overall, drop out was 31.7%: 26.3% in high-income countries, 45.1% in upper-middle-income countries, and 37.6% in low/ lower/middle-income countries. Drop out from psychiatrists was 21.3% overall and similar across country income groups (high 20.3%, upper-middle 23.6%, low/lower-middle 23.8%) but the pattern of drop out across other sectors differed by country income group. Drop out was more likely early in treatment, particularly after the second visit.Conclusions: Drop out needs to be reduced to ensure effective treatment.
- 2 January 2013
- Published by Royal College of Psychiatrists in The British Journal of Psychiatry
- Vol. 202 (1) , 42-49
Open AccessDrop out from out-patient mental healthcare in the World Health Organization's World Menta Health Survey initiative
Background: Previous community surveys of the drop out from mental health treatment have been carried out only in the USA and Canada.Aims: To explore mental health treatment drop out in the World Health Organization World Mental Health Surveys.Method: Representative face-to-face household surveys were conducted among adults in 24 countries. People who reported mental health treatment in the 12 months before interview (n = 8482) were asked about drop out, defined as stopping treatment before the provider wanted.Results: Overall, drop out was 31.7%: 26.3% in high-income countries, 45.1% in upper-middle-income countries, and 37.6% in low/ lower/middle-income countries. Drop out from psychiatrists was 21.3% overall and similar across country income groups (high 20.3%, upper-middle 23.6%, low/lower-middle 23.8%) but the pattern of drop out across other sectors differed by country income group. Drop out was more likely early in treatment, particularly after the second visit.Conclusions: Drop out needs to be reduced to ensure effective treatment.
- 9 August 2012
- Published by Cambridge University Press (CUP) in Psychological Medicine
- Vol. 43 (4) , 865-879
Cross-national differences in the prevalence and correlates of burden among older family caregivers in the World Health Organization World Mental Health (WMH) Surveys
Background: Current trends in population aging affect both recipients and providers of informal family caregiving, as the pool of family caregivers is shrinking while demand is increasing. Epidemiological research has not yet examined the implications of these trends for burdens experienced by aging family caregivers.Method: Cross-sectional community surveys in 20 countries asked 13 892 respondents aged 50+ years about the objective (time, financial) and subjective (distress, embarrassment) burdens they experience in providing care to first-degree relatives with 12 broadly defined serious physical and mental conditions. Differential burden was examined by country income category, kinship status and type of condition.Results: Among the 26.9–42.5% respondents in high-, upper-middle-, and low-/lower-middle-income countries reporting serious relative health conditions, 35.7–42.5% reported burden. Of those, 25.2–29.0% spent time and 13.5–19.4% money, while 24.4–30.6% felt distress and 6.4–21.7% embarrassment. Mean caregiving hours per week in those giving any time were 16.6–23.6 (169.9–205.8 h/week per 100 people aged 50+ years). Burden in low-/lower-middle-income countries was 2- to 3-fold higher than in higher-income countries, with any financial burden averaging 14.3% of median family income in high-, 17.7% in upper-middle-, and 39.8% in low-/lower-middle-income countries. Higher burden was reported by women than men and for conditions of spouses and children than parents or siblings.Conclusions: Uncompensated family caregiving is an important societal asset that offsets rising formal healthcare costs. However, the substantial burdens experienced by aging caregivers across multiple family health conditions and geographic regions threaten the continued integrity of their caregiving capacity. Initiatives supporting older family caregivers are consequently needed, especially in low-/lower-middle-income countries.
- 9 August 2012
- Published by Cambridge University Press (CUP) in Psychological Medicine
- Vol. 43 (4) , 865-879
Cross-national differences in the prevalence and correlates of burden among older family caregivers in the World Health Organization World Mental Health (WMH) Surveys
Background: Current trends in population aging affect both recipients and providers of informal family caregiving, as the pool of family caregivers is shrinking while demand is increasing. Epidemiological research has not yet examined the implications of these trends for burdens experienced by aging family caregivers.Method: Cross-sectional community surveys in 20 countries asked 13 892 respondents aged 50+ years about the objective (time, financial) and subjective (distress, embarrassment) burdens they experience in providing care to first-degree relatives with 12 broadly defined serious physical and mental conditions. Differential burden was examined by country income category, kinship status and type of condition.Results: Among the 26.9–42.5% respondents in high-, upper-middle-, and low-/lower-middle-income countries reporting serious relative health conditions, 35.7–42.5% reported burden. Of those, 25.2–29.0% spent time and 13.5–19.4% money, while 24.4–30.6% felt distress and 6.4–21.7% embarrassment. Mean caregiving hours per week in those giving any time were 16.6–23.6 (169.9–205.8 h/week per 100 people aged 50+ years). Burden in low-/lower-middle-income countries was 2- to 3-fold higher than in higher-income countries, with any financial burden averaging 14.3% of median family income in high-, 17.7% in upper-middle-, and 39.8% in low-/lower-middle-income countries. Higher burden was reported by women than men and for conditions of spouses and children than parents or siblings.Conclusions: Uncompensated family caregiving is an important societal asset that offsets rising formal healthcare costs. However, the substantial burdens experienced by aging caregivers across multiple family health conditions and geographic regions threaten the continued integrity of their caregiving capacity. Initiatives supporting older family caregivers are consequently needed, especially in low-/lower-middle-income countries.
- Open Access
- 1 June 2012
- Published by Royal College of Psychiatrists in The British Journal of Psychiatry
- Vol. 200 (6) , 454-461
Role of common mental and physical disorders in partial disability around the world
Background: Mental and physical disorders are associated with total disability, but their effects on days with partial disability (i.e. the ability to perform some, but not full-role, functioning in daily life) are not well understood.Aims: To estimate individual (i.e. the consequences for an individual with a disorder) and societal effects (i.e. the avoidable partial disability in the society due to disorders) of mental and physical disorders on days with partial disability around the world.Method: Respondents from 26 nationally representative samples (n = 61 259, age 18+) were interviewed regarding mental and physical disorders, and day-to-day functioning. The Composite International Diagnostic Interview, version 3.0 (CIDI 3.0) was used to assess mental disorders; partial disability (expressed in full day equivalents) was assessed with the World Health Organization Disability Assessment Schedule in the CIDI 3.0.Results: Respondents with disorders reported about 1.58 additional disability days per month compared with respondents without disorders. At the individual level, mental disorders (especially post-traumatic stress disorder, depression and bipolar disorder) yielded a higher number of days with disability than physical disorders. At the societal level, the population attributable risk proportion due to physical and mental disorders was 49% and 15% respectively.Conclusions: Mental and physical disorders have a considerable impact on partial disability, at both the individual and at the societal level. Physical disorders yielded higher effects on partial disability than mental disorders.
- 1 June 2012
- Published by Royal College of Psychiatrists in The British Journal of Psychiatry
- Vol. 200 (6) , 454-461
Open AccessRole of common mental and physical disorders in partial disability around the world
Background: Mental and physical disorders are associated with total disability, but their effects on days with partial disability (i.e. the ability to perform some, but not full-role, functioning in daily life) are not well understood.Aims: To estimate individual (i.e. the consequences for an individual with a disorder) and societal effects (i.e. the avoidable partial disability in the society due to disorders) of mental and physical disorders on days with partial disability around the world.Method: Respondents from 26 nationally representative samples (n = 61 259, age 18+) were interviewed regarding mental and physical disorders, and day-to-day functioning. The Composite International Diagnostic Interview, version 3.0 (CIDI 3.0) was used to assess mental disorders; partial disability (expressed in full day equivalents) was assessed with the World Health Organization Disability Assessment Schedule in the CIDI 3.0.Results: Respondents with disorders reported about 1.58 additional disability days per month compared with respondents without disorders. At the individual level, mental disorders (especially post-traumatic stress disorder, depression and bipolar disorder) yielded a higher number of days with disability than physical disorders. At the societal level, the population attributable risk proportion due to physical and mental disorders was 49% and 15% respectively.Conclusions: Mental and physical disorders have a considerable impact on partial disability, at both the individual and at the societal level. Physical disorders yielded higher effects on partial disability than mental disorders.
- Open Access
- 1 April 2012
- Published by Royal College of Psychiatrists in The British Journal of Psychiatry
- Vol. 200 (4) , 290-299
Parent psychopathology and offspring mental disorders: Results from the WHO World Mental Health Surveys
Background: Associations between specific parent and offspring mental disorders are likely to have been overestimated in studies that have failed to control for parent comorbidity.Aims: To examine the associations of parent with respondent disorders.Method: Data come from the World Health Organization (WHO) World Mental Health Surveys (n = 51 507). Respondent disorders were assessed with the Composite International Diagnostic Interview and parent disorders with informant-based Family History Research Diagnostic Criteria interviews.Results: Although virtually all parent disorders examined (major depressive, generalised anxiety, panic, substance and antisocial behaviour disorders and suicidality) were significantly associated with offspring disorders in multivariate analyses, little specificity was found. Comorbid parent disorders had significant sub-additive associations with offspring disorders. Population-attributable risk proportions for parent disorders were 12.4% across all offspring disorders, generally higher in high- and upper-middle- than low-/lower-middle-income countries, and consistently higher for behaviour (11.0–19.9%) than other (7.1–14.0%) disorders.Conclusions: Parent psychopathology is a robust non-specific predictor associated with a substantial proportion of offspring disorders.
- 1 April 2012
- Published by Royal College of Psychiatrists in The British Journal of Psychiatry
- Vol. 200 (4) , 290-299
Open AccessParent psychopathology and offspring mental disorders: Results from the WHO World Mental Health Surveys
Background: Associations between specific parent and offspring mental disorders are likely to have been overestimated in studies that have failed to control for parent comorbidity.Aims: To examine the associations of parent with respondent disorders.Method: Data come from the World Health Organization (WHO) World Mental Health Surveys (n = 51 507). Respondent disorders were assessed with the Composite International Diagnostic Interview and parent disorders with informant-based Family History Research Diagnostic Criteria interviews.Results: Although virtually all parent disorders examined (major depressive, generalised anxiety, panic, substance and antisocial behaviour disorders and suicidality) were significantly associated with offspring disorders in multivariate analyses, little specificity was found. Comorbid parent disorders had significant sub-additive associations with offspring disorders. Population-attributable risk proportions for parent disorders were 12.4% across all offspring disorders, generally higher in high- and upper-middle- than low-/lower-middle-income countries, and consistently higher for behaviour (11.0–19.9%) than other (7.1–14.0%) disorders.Conclusions: Parent psychopathology is a robust non-specific predictor associated with a substantial proportion of offspring disorders.