No description available.

<p>Smoking/tobacco use is the leading preventable cause of death worldwide. Despite understanding the health consequences of smoking, less is known as to how and why the effects of smoking emerge differently between countries and within populations both over time and across socioeconomic groups and geographic locales. In this thesis, we examined socioeconomic status (SES) and geography as two potential causes of variability in current rates of tobacco use and cessation in Canada and India, countries at diverse levels of economic development and epidemiological transition. The major findings were: (i) low SES, defined by education, income, and occupation, was associated with increased risk of tobacco consumption in both Canada and India, although there was variability in the strength of this association by form of tobacco use in India; (ii) in a 60-year longitudinal study, rates of smoking have fallen over time in Canada but socioeconomic gaps have widened; (iii) smoking quit rates were higher in Canada than India; although in both countries there was a positive association between SES and quitting; (iv) geographic variation in tobacco use and quit rates remained after accounting for individual socioeconomic and demographic characteristics, suggesting the importance of place in shaping patterns of tobacco use in Canada and India. Taken together, these findings indicate that tobacco use in populations is strongly patterned along socioeconomic and geographic dimensions. Future prevention and cessation programs will need explicit consideration of socioeconomic and geographic aspects of the tobacco use distribution to effectively improve the situation across all areas and groups.</p> / Doctor of Philosophy (PhD)

<p> In this project we used structural equation modeling to analyze the data collected for the Canadian Community Health Survey (CCHS) Cycle 1.2 - Mental Health and Well-Being conducted by Statistics Canada. The data are cross-sectional.</p> <p> We looked at the relation between depression and obesity adjusting for gender, socioeconomic status, gene-environment interactions, eating and physical activity and stress.</p> <p> We used the AMOS and Mplus softwares to analyze our data. The first one used continuous variables for depression ("persistence of depression", in years) and obesity ("body mass index"-BMI), while the second used categorical variables: lifetime depression, 12 month depression and obesity (normal weight, overweight and obese). We also used two variables to measure different aspects of stress: self-perceived ability to handle an unexpected problem and work stress-social support.</p> <p> We fitted the models across the entire data, but also across different groups: males versus females and groups based on gender and BMI.</p> <p> The results indicated that the relationship between depression and obesity is different across gender.</p> <p> The limitations of the study are also discussed. </p> / Thesis / Master of Science (MSc)

BACKGROUND. Frailty is a syndrome characterized by a decreased resistance to stressors, leading to increased vulnerability to adverse outcomes, including mortality. Multi-morbidity refers to the presence of two or more chronic diseases, and is associated with increased risk of adverse health outcomes. Most of the literature in frailty is based on older people (65+ years) living in high income countries. OBJECTIVE. To compare the predictive ability of three frailty indices for all-cause and one-year mortality among high- (HIC), middle- (MIC), and low- income country (LIC) participants; and to assess the mortality risk associated with multi-morbidity. METHODS. Using data from the Prospective Urban and Rural Epidemiological (PURE) study, we developed three indices using different definitions of frailty (one phenotypic frailty index; two cumulative deficit indices). All indices were tested for predictive ability for mortality both individually and with multi-morbidity. RESULTS. Prevalence of phenotypic frailty was greatest in LIC (8%), intermediate in MIC (7%), and lowest in HIC (4%). Multi-morbidity was most prevalent in HIC (20%), intermediate in MIC (15%), and lowest in LIC (13%). Increased frailty was associated with greater mortality risk using all frailty indices (e.g. HR (95% CI) of 2.63 (2.35-2.95) for the phenotypically frail relative to the robust). At each frailty level, mortality risk was higher within one year of baseline measurement than afterwards, and increased if it was accompanied by concurrent multi-morbidity (e.g. HR of phenotypic frailty increases from 2.27 (1.96-2.62) to 5.08 (4.34-5.95) if accompanied by multi-morbidity). CONCLUSION. All frailty indices predicted mortality. This study is unique in evaluating the prognostic ability of frailty indices in middle-aged adults across HIC, MIC, and LICs. / Thesis / Master of Science (MSc)

Background: Compared with typically developing children, children with special needs often struggle with academic and social aspects of school, though certain factors can improve their academic and social developmental trajectory. The objective of this investigation was to explore the association between the developmental health of children with special needs at school-entry, as measured by the Early Development Instrument (EDI), and neighborhood-level SES. To date, the EDI has only been validated for use in typically developing children. Hence, a secondary objective of this investigation was to explore the psychometric properties of the EDI for children with special needs. Methods: The data for this investigation were from the Pan-Canadian database of children’s developmental health at school entry. The psychometric properties of the EDI, including item and domain characteristics, factor structure, and construct validity, were tested for children with special needs. Hierarchical generalized linear models was used to model the association between EDI domain scores and a custom neighborhood SES index. Results: A total of 29,841 (69.8% male) and 29,520 (69.7% male) children with special needs were available for the investigation on the psychometric properties of the EDI and the relationship between EDI outcomes and SES, respectively. The psychometric performance of the EDI in children with special needs was similar to its performance in typically developing children. The EDI was subsequently used to explore the association between developmental outcomes and neighborhood socioeconomic status (SES). All EDI domains were positively correlated with SES, indicating that children in high SES neighborhoods have better developmental outcomes at school entry than those in lower SES neighborhoods. Conclusions: The results of this investigation draw attention to the potential impact of contextual factors on children’s health and have implications for policy development and service planning. These results also indicate that the EDI performs similarly in children with special needs and typically developing children, thus enabling its more extensive use for this population. / Thesis / Master of Science (MSc) / Background: Compared with typically developing children, children with special needs often struggle with academic and social aspects of school, though certain factors can improve their academic and social developmental trajectory. The objective of this investigation was to explore the association between the developmental health of children with special needs at school-entry, as measured by the Early Development Instrument (EDI), and neighborhood-level SES. To date, the EDI has only been validated for use in typically developing children. Hence, a secondary objective of this investigation was to explore the psychometric properties of the EDI for children with special needs. Methods: The data for this investigation were from the Pan-Canadian database of children’s developmental health at school entry. The psychometric properties of the EDI, including item and domain characteristics, factor structure, and construct validity, were tested for children with special needs. Hierarchical generalized linear models was used to model the association between EDI domain scores and a custom neighborhood SES index. Results: A total of 29,841 (69.8% male) and 29,520 (69.7% male) children with special needs were available for the investigation on the psychometric properties of the EDI and the relationship between EDI outcomes and SES, respectively. The psychometric performance of the EDI in children with special needs was similar to its performance in typically developing children. The EDI was subsequently used to explore the association between developmental outcomes and neighborhood socioeconomic status (SES). All EDI domains were positively correlated with SES, indicating that children in high SES neighborhoods have better developmental outcomes at school entry than those in lower SES neighborhoods. Conclusions: The results of this investigation draw attention to the potential impact of contextual factors on children’s health and have implications for policy development and service planning. These results also indicate that the EDI performs similarly in children with special needs and typically developing children, thus enabling its more extensive use for this population.

No description available.

No / Class theorists ask for research on the 'paradox of class' - the fact that while class appears to be materially just as important as ever, it hardly features as part of a self-conscious social identity. At the same time mothering is usually seen as a classless activity. This paper describes class based differences in how mothers combine employment and caring for their children, how they divide labour with their partners, and how they choose childcare. These are not simple structural divisions between working class and middle class, but instead refer to more nuanced social identities. These class based differences in mothering present different mixes of choice and constraint, or of 'rationality' and 'preference' in choosing alternative courses of action. However, theories focusing on classless individualised preference (Hakim) and class-based rationality (Goldthorpe) do not go far beyond a tautological description of these alternatives. Rather, the paper shows how preference and rationality are socially and culturally created through the development of career as an identity, through biographical experience, through relations with partners, and through the development of normative views in social networks.

No / Although the proximate cause of Africa¿s AIDS crisis is HIV, the underlining societal causes are much broader and familiar. Across the continent, poverty structures not only the contours of the pandemic but also the outcome once an individual is infected with HIV. Thus, until poverty is reduced there will be little progress with either reducing transmission of the virus or creating an enhanced capacity to cope with its socioeconomic consequences. It follows that sustained human development is an essential precondition for any effective response to the pandemic in Africa.

This paper examines the relative influence of family stressors and the family’s socioeconomic circumstances on children’s happiness. Data from the 9 year old cohort of the national Growing Up in Ireland study (GUI) was used to examine these relationships. The sample consisted of 8,568 children and their families. The stressors considered were a conflictual parent–child relationship; children with emotional and social problems; parental depression; low parental self-efficacy and child isolation. A group of families and children who were experiencing a higher level of these stressors was identified. This constituted 16 % of the sample. Although socioeconomic disadvantage contributed significantly to the vulnerability of this group, it was by no means the sole or dominant issue. Using the Piers-Harris Happiness and Satisfaction Subscale, children’s self-assessed happiness in this identified group was found to be significantly lower than in the other groups, irrespective of socioeconomic and demographic variables. The family stressors were found to explain more than twice the variance in the children’s happiness than explained by the measures of socioeconomic status. Nonetheless, most of the variance remains unexplained. Future research directions to explore this are indicated.

Researchers and reformers have suggested that school climate is an important aspect of effective schools (Hoy & Hannum, 1997, p. 290). Literature also suggests that effective schools have a positive school climate (Chrispeels, 1990). The purpose of this study is to determine if the climate of schools affects the student achievement in school divisions in the Commonwealth of Virginia. The construct study conducted herein relies exclusively upon data collected by the Virginia Department of Education (VDOE) and reported in the Discipline, Crime and Violence Incidents annual report (DCVI), the Free and Reduced Lunch report, and the Truancy report to form a climate index (CI). A Hierarchical Cluster analysis was used to determine relationships between school division climate, as measured by the CI, and student achievement, as measured by the Virginia Standards of Learning (SOL) Tests, in school divisions in the Commonwealth of Virginia. Based on the CI, there is a relationship between school division climate and student achievement in English/reading, mathematics, history/social science, and science in the Commonwealth of Virginia. Moreover, incidents of disorderly conduct combined with the number of students who receive free and reduced lunch are the best predictors of student achievement. / Ed. D.