Dismand Stephan Houinato
University of Limoges
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Publication
Featured researches published by Dismand Stephan Houinato.
Dementia and Geriatric Cognitive Disorders | 2009
Maëlenn Guerchet; Dismand Stephan Houinato; Moussiliou Noël Paraïso; Nicolas von Ahsen; Philippe Nubukpo; Markus Otto; Jean-Pierre Clément; Pierre-Marie Preux; Jean-François Dartigues
Background/Aims: Dementia is increasing as a priority public health problem because of the ageing of the world population. Our goal was to estimate dementia and cognitive impairment prevalence in an elderly population of rural Benin. Methods: In a door-to-door survey, elderly people aged 65 years and above were screened using the Community Screening Interview for Dementia and the Five-Word Test. Results: The prevalence of cognitive impairment was 10.4% and that of dementia was 2.6%. Age, current depressive disorder and absence of the APOE ε2 allele were significantly associated with cognitive impairment. Conclusion: Prevalence of dementia and cognitive impairment appears to be lower in this study than in developed countries.
Dementia and Geriatric Cognitive Disorders | 2010
Maëlenn Guerchet; Pascal M'Belesso; Alain Maxime Mouanga; B. Bandzouzi; André Tabo; Dismand Stephan Houinato; Moussiliou Noël Paraïso; Pascale Cowppli-Bony; Philippe Nubukpo; Victor Aboyans; Jean-Pierre Clément; Jean-François Dartigues; Pierre-Marie Preux
Background: Data on dementia from low- and middle-income countries are still necessary to quantify the burden of this condition. This multicenter cross-sectional study aimed at estimating the prevalence of dementia in 2 large cities of Central Africa. Methods: General population door-to-door surveys were conducted in the districts of Bangui (Republic of Central Africa) and Brazzaville (Congo) in elderly aged ≧65 years. The subjects were screened with the Community Screening Interview for Dementia and the Five-Words Test. Diagnosis of dementia was made according to the DSM-IV criteria and to the clinical criteria proposed by the NINCDS-ADRDA for Alzheimer’s disease. Results: We enrolled 496 subjects in Bangui and 520 in Brazzaville. The prevalence of dementia was estimated at 8.1% (95% CI = 5.8–10.8) in Bangui and 6.7% (95% CI = 4.7–9.2) in Brazzaville. Conclusion: The prevalence of dementia in urban areas of Central Africa is close to those observed in high-income countries.
Cerebrovascular Diseases | 2012
Marie-Joëlle Cossi; Claire Gobron; Pierre-Marie Preux; Didier Niama; Hugues Chabriat; Dismand Stephan Houinato
Background: Little is known about the burden of stroke in sub-Saharan Africa that may increase with the ongoing demographic and socioeconomic transition. This study aims to assess the prevalence of stroke, its related disability rate and consequences in the quality of daily life in an urban door- to-door survey in Cotonou, Benin. Methods: A three-phase door-to-door study was performed in two districts of Cotonou with a broad range of socioeconomic income. A population of 15,155 individuals aged ≧15 years was evaluated. The first phase consisted in screening of stroke in the population using the modified WHO questionnaire, the second phase included the medical evaluation of all suspected cases, and in the third phase the diagnosis of stroke was confirmed by CT scan evaluation. Results: Out of 15,155 subjects, 321 cases were identified as possible stroke cases. The diagnosis was confirmed in 70 cases. The crude prevalence of stroke was thus estimated to be 4.6/1,000 (8.7/1,000 and 7.7/1,000 adjusted to the WHO and SEGI World Population). The mean age of the patients at onset was 56 ± 13 years. Sixty percent of stroke survivors had a Rankin score ≧2, and CT scan was found abnormal in 90.0% of them. Conclusion: The stroke prevalence in urban areas of Cotonou is higher than that reported in other sub-Saharan countries, and the majority of stroke survivors present with good functional recovery and without severe disability in their everyday life.
Journal of Alzheimer's Disease | 2012
Maëlenn Guerchet; Alain Maxime Mouanga; Pascal M'Belesso; André Tabo; B. Bandzouzi; Moussiliou Noël Paraïso; Dismand Stephan Houinato; Pascale Cowppli-Bony; Philippe Nubukpo; Victor Aboyans; Jean-Pierre Clément; Jean-François Dartigues; Pierre-Marie Preux
Risk factors for dementia in American and European countries have been well investigated. However, little research has been carried out in sub-Saharan Africa, where life events as well as environmental, socio-economic, and modifiable risk factors (i.e., cardiovascular risk factors) may differ. Two cross-sectional surveys were conducted in representative samples of the older general population living in Bangui (Central African Republic) and Brazzaville (Congo). Dementia was defined according to the DSM-IV criteria. Multivariate regression analyses were performed in order to identify independent factors associated with dementia. Among the 977 elderly Africans included in this analysis, 75 (7.6%) were diagnosed as having dementia. Increasing age, female gender, hypertension, a body mass index <18.5 kg/m2, depressive symptoms, and the lack of a primary education were significantly associated with dementia. Among life events, the death of one parent during childhood and recently having moved house were also associated with dementia. Beyond the usual risk factors for dementia, this study highlights the role of stressful events in low-income countries. Factors associated with dementia in African countries seem different from established factors in high-income countries and require further investigation.
Neuroepidemiology | 2012
Marie-Joëlle Cossi; Pierre-Marie Preux; Hugues Chabriat; Claire Gobron; Dismand Stephan Houinato
Background: Studies on the knowledge of stroke, its related risk factors and warning symptoms in the populations of Sub-Saharan Africa are scarce. No study has been performed in Benin until now. Methods: A door-to-door survey was performed in two districts of Cotonou with a broad socioeconomic range. 15,155 individuals aged ≥15 years were interviewed using a semi-structured questionnaire adapted from previous reports. Results: 15,155 individuals consented to participate in the survey. 14.1% correctly identified the brain as the affected organ in stroke. The most commonly identified risk factor was hypertension (34.5%). The most often cited warning signs of stroke were paralysis and hemiplegia (34.4%). Relatives were the major source of information about stroke (25.1%). In multivariate analysis, age, education level, occupation, self-reported risk factors of stroke, overweight and obesity were associated with at least one correct response to the questionnaire about stroke risk factors or symptoms. Conclusion: The awareness of stroke, and its risk factors and symptoms is low in Cotonou. The results suggest that specific education programs may improve people’s knowledge of stroke and their awareness of related risk factors in Sub-Saharan African countries.
Tropical Medicine & International Health | 2007
Dismand Stephan Houinato; M. Verdier; R. Josse; T. Zohoun; Luc Letenneur; Roger Salamon; F. Denis; Pierre-Marie Preux
A seroepidemiological survey to determine the prevalence of retrovirus infection (HTLV‐I/II, HIV‐I, HIV‐2) by representative sampling of the general population in the Department of Atacora in north‐western Benin is reported. The seroprevalence rate of HTLV‐I in this sample was at 1.86% (95% CI 1.20–2.52%). This is in agreement with prevalence rates reported from neighbouring countries of the sub‐region. No sera were found positive for HTLV‐II. Seropositivity to HIV‐I was 0.3%; HIV‐2 seropositivity was not encountered.
Global Epidemic Obesity | 2014
Akpa R. Gbary; Alphonse Kpozehouen; Yessito Corine Houehanou; François Djrolo; Murielle Pg Amoussou; Yessouf Tchabi; Roger Salamon; Dismand Stephan Houinato
Abstract Background: Data on overweight and obesity in general population in Benin is scarce. This study aimed therefore to assess prevalence and risk factors of overweight and obesity in
Bulletin De La Societe De Pathologie Exotique | 2012
Pascal M'Belesso; André Tabo; Maëlenn Guerchet; Alain Maxime Mouanga; B. Bandzouzi; Dismand Stephan Houinato; Moussiliou Noël Paraïso; Pascale Cowppli-Bony; Victor Aboyans; Philippe Nubukpo; Pierre-Marie Preux; Jean-François Dartigues; Jean-Pierre Clément
Given the gradual improvement of living conditions and aging, dementia and related syndromes are becoming serious problems in the developing countries. A cross-sectional door to door type study in neighbourhood, was conducted from October 2008 to January 2009, in the general population in Bangui, order to help get a better understanding of the prevalence and risk factors of dementia among people over 65 living in the Central African capital. Of the 496 elderly respondents, 188 had cognitive disorders. After a neuropsychological examination, 40 of these subjects were diagnosed with dementia. The prevalence of dementia was 8.1% (IC 95% = [5.7-10.5]). The average age of subjects with dementia, ranging from 65 to 90 years, was 76.0 ± 7.1 years. There was a significant risk of developing dementia for an increase of ten years old (OR = 2.6, 95% CI [1.5 to 4.5]). The sex-ratio was 6/34. 82.5% of the demented had never attended school. 70.0% showed a state of malnutrition (BMI ≤ 18,5 kg/m(2)), significantly associated with dementia (OR = 3.3; IC 95% = [1.5-7.3]). The blood pressure was high in 67.5% of demented which is significantly associated with dementia (OR = 2.4; IC 95% = [1.1-5.4]). A recent change in financial status was a factor significantly associated with dementia (OR = 6.4; IC 95% = [1.8-22.5]). These results support the existence of dementia in urban Africa. The observed prevalence is close to those found in high-income countries. Further studies should be conducted which includes both the rural and urban Africa, to better understand the problem and solutions consider to comprehensive care and prevention axes adapted to our context.
Bulletin De La Societe De Pathologie Exotique | 2012
Pascal M'Belesso; André Tabo; Maëlenn Guerchet; Alain Maxime Mouanga; B. Bandzouzi; Dismand Stephan Houinato; Moussiliou Noël Paraïso; Pascale Cowppli-Bony; Aboyans; Philippe Nubukpo; Pierre-Marie Preux; Jean-François Dartigues; Jean-Pierre Clément
Given the gradual improvement of living conditions and aging, dementia and related syndromes are becoming serious problems in the developing countries. A cross-sectional door to door type study in neighbourhood, was conducted from October 2008 to January 2009, in the general population in Bangui, order to help get a better understanding of the prevalence and risk factors of dementia among people over 65 living in the Central African capital. Of the 496 elderly respondents, 188 had cognitive disorders. After a neuropsychological examination, 40 of these subjects were diagnosed with dementia. The prevalence of dementia was 8.1% (IC 95% = [5.7-10.5]). The average age of subjects with dementia, ranging from 65 to 90 years, was 76.0 ± 7.1 years. There was a significant risk of developing dementia for an increase of ten years old (OR = 2.6, 95% CI [1.5 to 4.5]). The sex-ratio was 6/34. 82.5% of the demented had never attended school. 70.0% showed a state of malnutrition (BMI ≤ 18,5 kg/m(2)), significantly associated with dementia (OR = 3.3; IC 95% = [1.5-7.3]). The blood pressure was high in 67.5% of demented which is significantly associated with dementia (OR = 2.4; IC 95% = [1.1-5.4]). A recent change in financial status was a factor significantly associated with dementia (OR = 6.4; IC 95% = [1.8-22.5]). These results support the existence of dementia in urban Africa. The observed prevalence is close to those found in high-income countries. Further studies should be conducted which includes both the rural and urban Africa, to better understand the problem and solutions consider to comprehensive care and prevention axes adapted to our context.
Neuroepidemiology in Tropical Health | 2018
Dismand Stephan Houinato; Athanase Millogo
Abstract Headaches are among the most common disorders of the nervous system, with almost half of the adult population reporting having had at least one during the year prior to being asked. The overall prevalence of headache varies between 27.5% and 96.1%. The prevalence of migraine headache ranges between 3.3% and 64.0%, and that of tension headache between 26.9% and 42.0%. Almost all studies report that female patients predominate. Intracranial infections such as bacterial meningitis, cerebral abscesses, cerebral toxoplasmosis, and cysticercosis are relatively common causes of headache in the tropics.