Black African (black + african)

Distribution by Scientific Domains
Medical Sciences50%
Life Sciences50%

Terms modified by Black African

  • black african woman
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    Selected Abstracts

    Ethnicity, social disadvantage and psychotic-like experiences in a healthy population based sample

    ACTA PSYCHIATRICA SCANDINAVICA, Issue 3 2009
    C. Morgan
    Objective: We sought to investigate the prevalence and social correlates of psychotic-like experiences in a general population sample of Black and White British subjects. Method: Data were collected from randomly selected community control subjects, recruited as part of the ÆSOP study, a three-centre population based study of first-episode psychosis. Results: The proportion of subjects reporting one or more psychotic-like experience was 19% (n = 72/372). These were more common in Black Caribbean (OR 2.08) and Black African subjects (OR 4.59), compared with White British. In addition, a number of indicators of childhood and adult disadvantage were associated with psychotic-like experiences. When these variables were simultaneously entered into a regression model, Black African ethnicity, concentrated adult disadvantage, and separation from parents retained a significant effect. Conclusion: The higher prevalence of psychotic-like experiences in the Black Caribbean, but not Black African, group was explained by high levels of social disadvantage over the life course. [source]

    Hepatitis C in ethnic minority populations in England

    JOURNAL OF VIRAL HEPATITIS, Issue 6 2008
    A. G. Mann
    Summary., The aim of the study was to investigate the differing epidemiology of hepatitis C-related end-stage liver disease in ethnic minorities in England. We used Hospital Episode Statistics from 1997/98 to 2004/05 to directly age-standardize numbers of episodes and deaths from hepatitis C-related end-stage liver disease in ethnic groups using the white English population as standard and the age-structured population by ethnic group from the 2001 Census. We estimated the odds of having a diagnosis of end-stage liver disease amongst hepatitis C-infected individuals in each ethnic group compared with whites using logistic regression. The main outcome measures were age-standardized morbidity and mortality ratios and morbidity and mortality odds ratios. Standardized ratios (95% confidence interval) for hepatitis C-related end-stage liver disease ranged from 73 (38,140) in Chinese people to 1063 (952,1186) for those from an ,Other' ethnic group. Amongst individuals with a diagnosis of hepatitis C infection, the odds ratios (95% CI) of severe liver disease were 1.42 (1.13,1.79), 1.57 (1.36,1.81), 2.44 (1.85,3.22), 1.73 (1.36,2.19) and 1.83 (1.08,3.10) comparing individuals of Black African, Pakistani, Bangladeshi, Indian and Chinese origin with whites, respectively. Ethnic minority populations in England are more likely than whites to experience an admission or to die from severe liver disease as a result of hepatitis C infection. Ethnic minority populations may have a higher prevalence of hepatitis C or they may experience a poorer prognosis because of differential access to health services, longer duration of infection or the prevalence of co-morbidities. [source]

    Hepatitis B viral loads in southern African Blacks with hepatocellular carcinoma

    JOURNAL OF MEDICAL VIROLOGY, Issue 9 2009
    Raquel Viana
    Abstract Although viral loads are known to influence the development of hepatitis B virus-induced hepatocellular carcinoma in a number of populations, little information is available in the Black African population. Black African patients with hepatocellular carcinoma differ from those in other populations in having a lower frequency of e antigen-positivity and in other respects that might affect viral loads. Hepatitis B viral loads were measured using real-time polymerase chain reaction assay in 124 Black Africans with hepatocellular carcinoma and compared with those in 125 Black adult asymptomatic viral carriers. The geometric mean viral load in the cancer patients was 553,618,copies/ml (95% CI 301,953,1,015,033,copies/ml), with 62.1% having loads >1,×,105,copies/ml and 87.1% >1,× 104,copies/ml, whereas that in the carriers was 16,084,copies/ml (95% CI 9,184,28,168,copies/ml), with only 15.2% having values >1,× 105,copies/ml and 49.6% >1,×,104,copies/ml (P,<,0.001 in each instance). Mean viral load was significantly higher in e antigen-positive than e antigen-negative cancer patients (5,905,357 copies/ml [1,362,847,25,588,520] cf 238,173 copies/ml [97,200,685,730]: P,<,0.001) after adjusting for age and sex. No statistically significant difference existed between patients in different age groups, in men and women, or in patients infected with genotype A or D after adjusting for the other variables. Conclusion: Black Africans with hepatocellular carcinoma have high hepatitis B viral loads in spite of the relative infrequency of e antigen-positivity. J. Med. Virol. 81:1525,1530, 2009. © 2009 Wiley-Liss, Inc. [source]

    The Garífuna (Black Carib) people of the Atlantic coasts of Honduras: Population dynamics, structure, and phylogenetic relations inferred from genetic data, migration matrices, and isonymy

    AMERICAN JOURNAL OF HUMAN BIOLOGY, Issue 1 2010
    Edwin-Francisco Herrera-Paz
    The aim of this study is to assess population dynamics, structure, and phylogenetic relations of the populations that inhabit the Caribbean coasts of Honduras: the Garífuna (or Black Carib) people, an admixture of Black Africans and Red Carib Native Amerindians. Thirteen autosomal tetranucleotide microsatellite markers of the DNA (namely short tandem repeats) were genotyped in samples from the Garifuna communities of Bajamar, in the Department of Cortés; Corozal, in the Department of Atlántida; and Iriona, in the Department of Gracias a Dios. Each subject in the study filled a questionnaire with the following information: complete name and surname of participant, and places of birth of the participant, his/her parents, and grandparents. We performed analyses that included determination of migration rates and residence patterns from information of places of birth, fixation indices from genetic data, and analysis of surnames of the sampled subjects (isonymy). Migration matrices showed a migration wave from east to west in the parents and grandparents of the subjects. A raise in migration rates and a shift in predominating residence pattern from neolocality to matrilocality from grandparents to parents were observed. Analysis of isonymy conjunctly with values for FIS in each community showed high endogamy in Bajamar, and recent, high immigration in Iriona. A dendrogram constructed with allele frequencies of the Garifuna and other populations from the Americas, Africa, and Europe revealed the close relationships of this ethnic group with Afro-Caribbean and African Populations. Am. J. Hum. Biol. 2010. © 2009 Wiley-Liss, Inc. [source]