Ana Teixeira - Academia.edu (original) (raw)
Papers by Ana Teixeira
This dissertation examines organizational legitimacy processes in the Southern California tuna fl... more This dissertation examines organizational legitimacy processes in the Southern California tuna fleet fishing in the Eastern Pacific Ocean. The study employs a multidimensional model of organizational legitimacy consisting of cognitive legitimacy (producers' and consumers' dimension), and moral legitimacy. I use print media-based measures of cognitive and moral legitimacy collected for the period between 1903-2000 and an event history dataset on foundings and disbandings of Southern California tuna vessels' during the period between 1926-2003. Findings suggest that producers' cognitive legitimacy plays an important role in organizational dynamics by increasing the number of vessel foundings and decreasing the number of vessel disbandings. The effect of producers' cognitive legitimacy is felt even after adjustment for important ecological predictors such as organizational density, prior foundings and prior disbanding, thus confirming the need to use direct measures...
SSM - Population Health, 2016
Social capital and social support are two key constructs in the study of social networks and heal... more Social capital and social support are two key constructs in the study of social networks and health. Despite their importance, little research has sought to examine the characteristics of those social ties by which individuals access social capital and support resources. Network diversitya key structural feature in accessing social capitalrefers to a person's broad but generally weak and heterogeneous social ties; core network sizea key structural feature in accessing social supportrefers to the close, strong ties in personal networks. Our study examines whether the tie strength composing network diversity and core network size varies according to age-, psychosocial-, or health-related characteristics. Data came from the Montreal Neighbourhood Networks and Healthy Aging (MoNNET-HA) study, a representative sample of 2707 Montreal, Canada adults. Position and name generators were used to collect data on network diversity and core networks, and whether access to social resources was through kin, friends, or acquaintances. Multilevel negative binomial regression was used to account for the counts of different tie strengths nested within individuals and tracts. Network diversity and core network size both declined with older age groups, with those declines being more noticeable in not having ties at all or fewer ties with friends. Psychosocial and health factors altered the relative contribution of kin, friends and acquaintances to network diversity and core network size in similar patterns. Understanding the tie composition of network diversity and core network size can contribute to our knowledge of the social mechanisms linking social capital and support to health outcomes.
BMJ supportive & palliative care, 2015
Advance care planning (ACP) has the potential to increase patient-centred care, reduce caregiver ... more Advance care planning (ACP) has the potential to increase patient-centred care, reduce caregiver burden, and reduce healthcare costs at the end of life. Current levels of public participation in ACP activities are unknown. The purpose of this study was to determine the level of engagement of average Canadians in ACP activities. Data come from an on-line opinion poll of a national sample of respondents who were asked five questions on ACP activities along with their sociodemographic characteristics. Respondents were from all provinces of Canada, 52% were women, and 33% were between 45 years and 54 years of age. Of 1021 national sample respondents, 16% were aware of the term, ACP (95% CI 13% to 18%), 52% had discussions with their family or friends (95% CI 49% to 55%), and 10% had discussions with healthcare providers (95% CI 8% to 12%). Overall, 20% (95% CI 18% to 22%) of respondents had a written ACP and 47% (95% CI 44% to 50%) had designated a substitute decision maker. Being older...
Social Science & Medicine, 2006
Despite the call for a better understanding of macro-level factors that affect population health,... more Despite the call for a better understanding of macro-level factors that affect population health, social epidemiological research has tended to focus almost exclusively on national-level factors, such as Gross Domestic Product per capita (GDP/c) or levels of social cohesion. Using a world-systems framework to examine cross-national variations in infant mortality, this paper seeks to emphasize the effects of global trade on national-level population health. Rather than viewing national-level health indicators as autonomous from broader global contexts, the study uses network analysis methods to examine the effects of international trade on infant mortality rates. Network data for countries were derived from international data on the trade of capital-intensive commodities in 2000. Using automorphic equivalence to measure the degree to which actors in a network perform similar roles, countries were assigned into one of six world-system blocks, each with its own pattern of trade. These blocks were dummy-coded and tested using ordinary least squares (OLS) regression. A key finding from this analysis is that after controlling for national-level factors, the two blocks with the lowest density in capital-intensive exchange, i.e., the periphery, are significantly and positively associated with nationallevel infant mortality rates. Results show the effects of peripherality and stratification on population health, and highlight the influence of broader macro-level factors such as trade and globalization on national health.
BMJ Supportive & Palliative Care, 2013
American journal of public health, 2014
We sought to examine the prospective influence of social capital and social network ties on smoki... more We sought to examine the prospective influence of social capital and social network ties on smoking relapse among adults. In 2010, a 2-year follow-up study was conducted with the 2008 Montreal Neighborhood Networks and Healthy Aging Study (MoNNET-HA) participants. We asked participants in 2008 and 2010 whether they had smoked in the past 30 days. Position and name generators were used to collect data on social capital and social connections. We used multilevel logistic analysis adjusting for demographic and socioeconomic factors to predict smoking relapse in 2010. Of the 1400 MoNNET-HA follow-up participants, 1087 were nonsmokers in 2008. Among nonsmokers, 42 were smokers in 2010. Results revealed that participants with higher network social capital were less likely (odds ratio [OR] = 0.68; 95% confidence interval [CI] = 0.47, 0.96), whereas socially isolated participants (OR = 3.69; 95% CI = 1.36, 10.01) or those who had ties to smokers within the household (OR = 4.22; 95% CI = 1.5...
Journal of Epidemiology & Community Health, 2013
Background Research has shown network social capital associated with a range of health behaviours... more Background Research has shown network social capital associated with a range of health behaviours and conditions. Little is known about what social capital inequalities in health represent, and which social factors contribute to such inequalities. Methods Data come from the Montreal Neighbourhood Networks and Healthy Aging Study (n=2707). A position generator was used to collect network data on social capital. Health outcomes included self-reported health (SRH), physical inactivity, and hypertension. Social capital inequalities in low SRH, physical inactivity, and hypertension were decomposed into demographic, socioeconomic, network and psychosocial determinants. The percentage contributions of each in explaining health disparities were calculated. Results Across the three outcomes, higher educational attainment contributed most consistently to explaining social capital inequalities in low SRH (% C=30.8%), physical inactivity (15.9%), and hypertension (51.2%). Social isolation, contributed to physical inactivity (11.7%) and hypertension (18.2%). Sense of control (24.9%) and perceived cohesion (11.5%) contributed to low SRH. Age reduced or increased social capital inequalities in hypertension depending on the age category. Conclusions Interventions that include strategies to reduce socioeconomic inequalities and increase actual and perceived social connectivity may be most successful in reducing social capital inequalities in health.
Ethnicity & health, Jan 24, 2016
This study aims at examining how factors relating to immigrants' experience in the host count... more This study aims at examining how factors relating to immigrants' experience in the host country affect psychological distress (PD). Specifically, we analyzed the association among socio-economic status (SES), integration in the labor market, specific immigration experience characteristics, and PD in a multi-ethnic sample of immigrant individuals residing in Lisbon, Portugal. Using a sample (n = 1375) consisting of all main immigrant groups residing in Portugal's metropolitan area of Lisbon, we estimated multivariable linear regression models of PD regressed on selected sets of socio-economic independent variables. A psychological distress scale was constructed based on five items (feeling physically tired, feeling psychologically tired, feeling happy, feeling full of energy, and feeling lonely). Variables associated with a decrease in PD are being a male (demographic), being satisfied with their income level (SES), living with the core family and having higher number of chil...
This dissertation examines organizational legitimacy processes in the Southern California tuna fl... more This dissertation examines organizational legitimacy processes in the Southern California tuna fleet fishing in the Eastern Pacific Ocean. The study employs a multidimensional model of organizational legitimacy consisting of cognitive legitimacy (producers' and consumers' dimension), and moral legitimacy. I use print media-based measures of cognitive and moral legitimacy collected for the period between 1903-2000 and an event history dataset on foundings and disbandings of Southern California tuna vessels' during the period between 1926-2003. Findings suggest that producers' cognitive legitimacy plays an important role in organizational dynamics by increasing the number of vessel foundings and decreasing the number of vessel disbandings. The effect of producers' cognitive legitimacy is felt even after adjustment for important ecological predictors such as organizational density, prior foundings and prior disbanding, thus confirming the need to use direct measures...
SSM - Population Health, 2016
Social capital and social support are two key constructs in the study of social networks and heal... more Social capital and social support are two key constructs in the study of social networks and health. Despite their importance, little research has sought to examine the characteristics of those social ties by which individuals access social capital and support resources. Network diversitya key structural feature in accessing social capitalrefers to a person's broad but generally weak and heterogeneous social ties; core network sizea key structural feature in accessing social supportrefers to the close, strong ties in personal networks. Our study examines whether the tie strength composing network diversity and core network size varies according to age-, psychosocial-, or health-related characteristics. Data came from the Montreal Neighbourhood Networks and Healthy Aging (MoNNET-HA) study, a representative sample of 2707 Montreal, Canada adults. Position and name generators were used to collect data on network diversity and core networks, and whether access to social resources was through kin, friends, or acquaintances. Multilevel negative binomial regression was used to account for the counts of different tie strengths nested within individuals and tracts. Network diversity and core network size both declined with older age groups, with those declines being more noticeable in not having ties at all or fewer ties with friends. Psychosocial and health factors altered the relative contribution of kin, friends and acquaintances to network diversity and core network size in similar patterns. Understanding the tie composition of network diversity and core network size can contribute to our knowledge of the social mechanisms linking social capital and support to health outcomes.
BMJ supportive & palliative care, 2015
Advance care planning (ACP) has the potential to increase patient-centred care, reduce caregiver ... more Advance care planning (ACP) has the potential to increase patient-centred care, reduce caregiver burden, and reduce healthcare costs at the end of life. Current levels of public participation in ACP activities are unknown. The purpose of this study was to determine the level of engagement of average Canadians in ACP activities. Data come from an on-line opinion poll of a national sample of respondents who were asked five questions on ACP activities along with their sociodemographic characteristics. Respondents were from all provinces of Canada, 52% were women, and 33% were between 45 years and 54 years of age. Of 1021 national sample respondents, 16% were aware of the term, ACP (95% CI 13% to 18%), 52% had discussions with their family or friends (95% CI 49% to 55%), and 10% had discussions with healthcare providers (95% CI 8% to 12%). Overall, 20% (95% CI 18% to 22%) of respondents had a written ACP and 47% (95% CI 44% to 50%) had designated a substitute decision maker. Being older...
Social Science & Medicine, 2006
Despite the call for a better understanding of macro-level factors that affect population health,... more Despite the call for a better understanding of macro-level factors that affect population health, social epidemiological research has tended to focus almost exclusively on national-level factors, such as Gross Domestic Product per capita (GDP/c) or levels of social cohesion. Using a world-systems framework to examine cross-national variations in infant mortality, this paper seeks to emphasize the effects of global trade on national-level population health. Rather than viewing national-level health indicators as autonomous from broader global contexts, the study uses network analysis methods to examine the effects of international trade on infant mortality rates. Network data for countries were derived from international data on the trade of capital-intensive commodities in 2000. Using automorphic equivalence to measure the degree to which actors in a network perform similar roles, countries were assigned into one of six world-system blocks, each with its own pattern of trade. These blocks were dummy-coded and tested using ordinary least squares (OLS) regression. A key finding from this analysis is that after controlling for national-level factors, the two blocks with the lowest density in capital-intensive exchange, i.e., the periphery, are significantly and positively associated with nationallevel infant mortality rates. Results show the effects of peripherality and stratification on population health, and highlight the influence of broader macro-level factors such as trade and globalization on national health.
BMJ Supportive & Palliative Care, 2013
American journal of public health, 2014
We sought to examine the prospective influence of social capital and social network ties on smoki... more We sought to examine the prospective influence of social capital and social network ties on smoking relapse among adults. In 2010, a 2-year follow-up study was conducted with the 2008 Montreal Neighborhood Networks and Healthy Aging Study (MoNNET-HA) participants. We asked participants in 2008 and 2010 whether they had smoked in the past 30 days. Position and name generators were used to collect data on social capital and social connections. We used multilevel logistic analysis adjusting for demographic and socioeconomic factors to predict smoking relapse in 2010. Of the 1400 MoNNET-HA follow-up participants, 1087 were nonsmokers in 2008. Among nonsmokers, 42 were smokers in 2010. Results revealed that participants with higher network social capital were less likely (odds ratio [OR] = 0.68; 95% confidence interval [CI] = 0.47, 0.96), whereas socially isolated participants (OR = 3.69; 95% CI = 1.36, 10.01) or those who had ties to smokers within the household (OR = 4.22; 95% CI = 1.5...
Journal of Epidemiology & Community Health, 2013
Background Research has shown network social capital associated with a range of health behaviours... more Background Research has shown network social capital associated with a range of health behaviours and conditions. Little is known about what social capital inequalities in health represent, and which social factors contribute to such inequalities. Methods Data come from the Montreal Neighbourhood Networks and Healthy Aging Study (n=2707). A position generator was used to collect network data on social capital. Health outcomes included self-reported health (SRH), physical inactivity, and hypertension. Social capital inequalities in low SRH, physical inactivity, and hypertension were decomposed into demographic, socioeconomic, network and psychosocial determinants. The percentage contributions of each in explaining health disparities were calculated. Results Across the three outcomes, higher educational attainment contributed most consistently to explaining social capital inequalities in low SRH (% C=30.8%), physical inactivity (15.9%), and hypertension (51.2%). Social isolation, contributed to physical inactivity (11.7%) and hypertension (18.2%). Sense of control (24.9%) and perceived cohesion (11.5%) contributed to low SRH. Age reduced or increased social capital inequalities in hypertension depending on the age category. Conclusions Interventions that include strategies to reduce socioeconomic inequalities and increase actual and perceived social connectivity may be most successful in reducing social capital inequalities in health.
Ethnicity & health, Jan 24, 2016
This study aims at examining how factors relating to immigrants' experience in the host count... more This study aims at examining how factors relating to immigrants' experience in the host country affect psychological distress (PD). Specifically, we analyzed the association among socio-economic status (SES), integration in the labor market, specific immigration experience characteristics, and PD in a multi-ethnic sample of immigrant individuals residing in Lisbon, Portugal. Using a sample (n = 1375) consisting of all main immigrant groups residing in Portugal's metropolitan area of Lisbon, we estimated multivariable linear regression models of PD regressed on selected sets of socio-economic independent variables. A psychological distress scale was constructed based on five items (feeling physically tired, feeling psychologically tired, feeling happy, feeling full of energy, and feeling lonely). Variables associated with a decrease in PD are being a male (demographic), being satisfied with their income level (SES), living with the core family and having higher number of chil...